Methods and apparatus for producing biomass-derived pyrolysis oil with low metal content

FIELD: chemistry.

SUBSTANCE: invention relates to methods of producing pyrolysis oil. A method of producing biomass-derived pyrolysis oil (38) with low metal content includes steps of: filtering a biomass-derived pyrolysis oil (12) with a high-throughput filter unit (20) having throughput of 10 l/m2/h or higher to form biomass-derived pyrolysis oil (22) with low content of solid substances; filtering the biomass-derived pyrolysis oil (22) with low content of solid substances with a fine filter (28) having a pore diameter of 50 mcm or less to form biomass-derived pyrolysis oil (30) with very low content of solid substances; and contacting the biomass-derived pyrolysis oil (30) with very low content of solid substances with an ion-exchange resin to remove metal ions and form biomass-derived pyrolysis oil (38) with low metal content. A version of the method is also disclosed.

EFFECT: total metal content is reduced to concentration of 100 ppm or less.

10 cl, 1 dwg

 

The present application claims priority on U.S. application No. 13/162,188, filed June 16, 2011, the contents of which are fully included in the invention as a link.

The technical field to which the invention relates

The present invention relates primarily to methods and devices for the production of biofuels, and more specifically to methods and devices for producing pyrolysis oil with a low content of metals, from pyrolysis oil produced from biomass.

The level of technology

Fast pyrolysis is a process in which organic materials of biomass such as wood waste, agricultural waste, etc., is rapidly heated to a temperature of from 450°C to 600°C in the absence of air using a pyrolysis reactor. In these conditions, are formed of organic vapors, gases of pyrolysis and solid fragments of coal and the like. Vapors are condensed with the formation of pyrolysis oil produced from biomass. Pyrolysis oil produced from biomass that can be directly burned as fuel in some of the boilers and furnaces, and also it can serve as a possible feedstock in catalytic processes for the production of fuels in refineries. Potentially pyrolysis oil produced from biomass can replace up to about 60% of motor fuel, and �thus, reduced dependence on conventional oil and reduces the impact on the environment.

However, pyrolysis oil produced from biomass is complex, much of oxygenated organic liquid having characteristics that currently limit its use as a biofuel. For example, pyrolysis oil produced from biomass, usually contaminated with coal and other insoluble substances obtained during pyrolysis of biomass. Coal contributes to thermal instability of the oil. Coal content correlates with an increase in viscosity, phase separation, and/or formation of solids during storage. It is established that the removal of charcoal from pyrolysis oil produced from biomass, is very difficult. For example, traditional fluid filtration is difficult because the liquid pyrolysis oil produced from biomass, can have a gel-like consistency.

In addition, the metals in the pyrolysis oil produced from biomass, limit it to commercial use. Metals are in the solid fragments and dissolved in the pyrolysis oil produced from biomass, in the form of metal cations. These metals contribute to the ash content after combustion of the oil. It is desirable to reduce and/or minimize the ash content spirolina oil, produced from biomass, since the ash increases the total ash content, and particle emissions when pyrolysis oil produced from biomass that is burned when used as fuel. The demands of the environment can limit these emissions. In addition, when using pyrolysis oil produced from biomass as feedstock in catalytic processes for the production of motor fuels, metals in oil pollute located downstream equipment and inhibit or inactivate the catalyst.

Therefore, it is desirable to develop methods and devices to produce pyrolysis oil produced from biomass with a relatively low concentration of metals. In addition, it is desirable to develop methods and devices for removal of solid fragments, such as coal and other insoluble impurities, with the formation of pyrolysis oil produced from biomass with increased thermal stability. Furthermore, other desirable features and characteristics of the present invention will become apparent from the following detailed description of the invention and the attached claims, read in conjunction with the accompanying drawings and the specified level of technology.

Disclosure of invention

In the invention designed FPIC�and device for obtaining produced from biomass pyrolysis oil with a low content of metals. In accordance with embodiments, a method of producing produced from biomass pyrolysis oil with a low content of metals includes stage filtration produced from biomass pyrolysis oil using the filtration unit with high capacity, with throughput of 10 l/m2per hour or more, with the formation produced from biomass pyrolysis oils with a low content of solids. Produced from biomass pyrolysis oil with a low content of solids was filtered through a small pore filter having a pore diameter of 50 μm or less education produced from biomass pyrolysis oil with a very low solids content. Produced from biomass pyrolysis oil with a very low content of solids are brought into contact with ion-exchange resin to remove metal ions and to obtain produced from biomass pyrolysis oil with a low content of metals.

In accordance with another example implementation, a method for producing a produced from biomass pyrolysis oil with a low content of metals. The method includes the stage filtration produced from pyrolysis of biomass oil with the formation produced from biomass pyrolysis oil with a very low solids content.The first portion produced from biomass pyrolysis oil with a very low content of solids are brought into contact with the acidic ion-exchange resin, having a sulfonic group, with the formation of the first number produced from biomass pyrolysis oil with a low content of metals, and the spent ion-exchange resin. The spent ion exchange resin is subjected to regeneration comprising contacting the spent ion-exchange resin with a solution containing sodium ions to exchange potassium ions, calcium ions, magnesium ions, strontium ions, titanium ions, vanadium ions, copper ions, iron ions, cobalt ions, chromium ions, lead ions, manganese ions, Nickel ions, zinc ions and other monovalent ions, divalent or trivalent metals, present in the produced pyrolysis oil from biomass, or combinations thereof and which were removed by ion exchange from the spent ion-exchange resin with sodium ions from the solution with the formation of the spent ion-exchange resins containing sodium ions, which is regenerated with the formation of the regenerated ion-exchange resin. A second portion made from biomass pyrolysis oil with a very low content of solids are brought into contact with the regenerated ion-exchange resin with the formation of the second quantity produced from biomass pyrolysis oil with a low content of metals.

In accordance with another example implementation, the proposed device for Paul�diation produced from biomass pyrolysis oil with a low content of metals. The said device comprises a filtration unit with high bandwidth, configured to receive and filter produced from biomass pyrolysis oil with the formation produced from biomass pyrolysis oil with a low content of solids. Finely porous filter connected in fluid from the filtration unit with high capacity to accept produced from biomass pyrolysis oil with a low content of solids, and is adapted to the filtration generated from biomass pyrolysis oil with a low content of solids to get produced from biomass pyrolysis oil with a very low solids content. The ion exchange unit containing ion exchange resin, and coupled in fluid finely porous filter to accept produced from biomass pyrolysis oil with a very low solids content. The ion exchange unit is capable of bringing into contact is produced from biomass pyrolysis oil with a very low content of solid substances with ion-exchange resin to remove metal ions with the formation produced from biomass pyrolysis oil with a low content of metals.

Brief description of drawing

Embodiments of the present invention � will subsequently be described in conjunction with the following schematic diagram, in which similar elements are designated by the same numbers, and:

Fig.1 schematically shows a device for producing produced from biomass pyrolysis oil with a low content of metals, in accordance with an example implementation.

The implementation of the invention

The following detailed description is essentially just an example and is not intended to limit the invention or for the use and application of the invention. Moreover, there is no intention to limit the invention by any theory presented in the prior art or in the following detailed description.

Various implementation options discussed in the description of the invention relate to methods and devices for producing produced from biomass pyrolysis oils having relatively low concentrations of metals (subsequently called "produced from biomass pyrolysis oil with a low content of metals from produced from biomass pyrolysis oil containing solids and metals (in the following" produced from biomass pyrolysis oil" or "original oil"). It should be recognized that, although the treated oil as described in the invention, called "produced from biomass pyrolysis oil with a low content of metals" therm�h "produced from biomass pyrolysis oil with a low content of metals" generally includes any produced from biomass pyrolysis oil, which has reduced the total concentrations of metals compared to the total metal concentration in the source produced from biomass pyrolysis oil. Unlike the prior art, in the described embodiment of the invention produced from biomass pyrolysis oil with a low content of solids is formed by filtration produced from biomass pyrolysis oil using the filtration unit with high capacity. Preferably, produced from biomass pyrolysis oil is heated to reduce the viscosity of the oil prior to passing it through a filtration unit with high capacity, which contributes to filtration. In the filtration unit with high capacity removes large solid fragments of coal, which include metals and other insoluble solids from produced from biomass pyrolysis oil, preferably without plugging or clogging of the filtration unit. Produced from biomass pyrolysis oil with a low content of solids are then filtered through a fine filter to remove the remaining small solid fragments with the formation produced from biomass pyrolysis oil with a very low solids content and high thermal stability. In addition, as more cu�Phnom debris removed from produced from biomass pyrolysis oils by filtration unit with high capacity, facilitated by filtering the remaining small solid fragments produced from biomass pyrolysis oil having a low content of solids using a fine-pored filter, preferably without plugging or clogging of the filtration unit. Produced from biomass pyrolysis oil with a very low content of solids is treated using ion exchange resin, which further reduces the concentration of metals in the oil. Typically, the ion exchange resin removes alkali metals (e.g. sodium, potassium, and cesium), alkaline earth metals (e.g. magnesium, calcium and strontium), transition metals (Fe, Ni, Mn) and other metals dissolved in produced from biomass pyrolysis oil with a very low content of solids to get produced from biomass pyrolysis oil with a low content of metals, which is more appropriate for use as a biofuel.

Please refer to Fig.1, which shows a schematic diagram of an apparatus 10 for receiving produced from biomass pyrolysis oil with a low content of metals in accordance with an example implementation. Stream 12 is produced from biomass pyrolysis oil is supplied to the device 10 from a source such as a supply tank, or other source of functioning for the purpose of feeding a stream of about 12�sitenovo from biomass pyrolysis oils. Produced from biomass pyrolysis oil can be obtained, for example, by pyrolysis of biomass in the pyrolysis reactor. In fact, there may be used any kind of biomass for pyrolysis for the purpose of obtaining produced from biomass pyrolysis oils. Produced from biomass pyrolysis oil can be extracted from biomass material such as wood, agricultural waste, nuts and seeds, seaweed, forestry residues, and the like. Produced from biomass pyrolysis oil can be produced using various options of pyrolysis, such as fast pyrolysis, vacuum pyrolysis, catalytic pyrolysis and slow pyrolysis or carbonization and the like.

The composition produced from biomass pyrolysis oils can vary considerably and depends on the characteristics of raw materials and process parameters. Usually produced from biomass pyrolysis oil contains from 2000 to 5000 ppm (part per million), the amount of metals, from 20 to 33% by weight. water and from 0.1 wt.%. up to 5 wt.% solid fragments of coal and the like. Metals are in the solid fragments and dissolved in the liquid phase produced from biomass pyrolysis oils and usually include alkali metals, alkaline earth metals, transition and heavy metals. Metals are always present in b�e and, therefore, in the original pyrolysis oil produced from biomass. These metals contribute to the ash content (ash content) by the combustion of oil. Produced from biomass pyrolysis oil is available, for example, from the firm Ensyn Technologies Inc., with headquarters in Ontario, Canada.

In an embodiment, the thread 12 is produced from biomass pyrolysis oil is pumped by a feed pump 14. Stream 12 is produced from biomass pyrolysis oil can be compressed to excessive pressure from 550 to 950 kPa. Then, the thread 12 is produced from biomass pyrolysis oil passes through the heat exchanger 16. In the exemplary embodiment of the flow 12 is produced from biomass pyrolysis oil is heated by indirect heat exchange in heat exchanger 16 to a temperature of from 30°to 60 ° C, and preferably from 40 to 50°C, to obtain a stream 18 is heated produced from biomass pyrolysis oils. The inventors have found that through the use of heat produced from biomass pyrolysis oil reduces the oil viscosity, which facilitates and improves subsequent operations to remove solids and metals from the oil.

As shown in the drawing, the thread 18 is heated produced from biomass pyrolysis oil is supplied to the filtering unit 20 with high bandwidth. Typically performance �of ultra or filtration unit, which may include a plurality of filter materials or elements, often define the term "bandwidth", which is a volume of the raw material (produced from biomass pyrolysis oil) passing through the unit area of the filter per unit time. Therefore, when higher throughput of the filtration unit to filter the raw materials with higher speed, preferably without plugging or clogging of the filtration unit, which allows you to filter large quantities of raw materials per unit time. In the exemplary embodiment of the filtration unit 20 with high capacity has a capacity of 10 liters/m2per hour (l/m2/h) or more, preferably 20 l/m2/h or more, more preferably 100 l/m2per hour or more, even more preferably from 100 to 500 l/m2/hour and most preferably from 200 to 500 l/m2an hour.

The filtration unit 20 with high bandwidth may be, for example, vacuum, gravity, or pressure filtration, or the like. The filtration unit 20 with high bandwidth can contain a filter medium or combination of filter media, such as, nitrocellulose, cellulose acetate, glass, polymers (such as polytetrafluoroethylene and nylon-6), wire with�TKA, sintered metal and the like, and the environment can be given different shapes, sizes and configurations. Preferably, the filter medium has a pore diameter less than most of the fragments of coal and other insoluble impurities produced from biomass pyrolysis oil, but not so small size to cause blockage or clogging of the filtration unit 20 with high bandwidth. In the exemplary embodiment of the filtration unit 20 high-bandwidth contains a filter medium having a pore diameter of 50 μm or more, and preferably 50 to 100 μm. Examples of suppliers of filters/filter media and filtration equipment include Whatman Plc (headquartered in Kent, UK), Millipore Corporation (headquartered in Billerica, units mA), Filtrex Corporation (with its headquarters in Attleboro, mA) and Pall Corporation (with its headquarters in Port Washington, NY).

As shown in the diagram, the filtering unit 20 with high bandwidth is a system of filtration under pressure, and flow 18 is heated produced from biomass pyrolysis oil is supplied to the filtering unit 20 with high bandwidth and filtered them, preferably without causing a significant pressure drop across the filtration unit 20 with high bandwidth. In one example, when filtering a stream of 8 heated produced from biomass pyrolysis oil occurs, the differential pressure in the filter unit 20 high-throughput of not more than 175 kPa. In the filtration unit 20 high-throughput remove much of the solid impurities, for example, when coarse filter from the stream 18 is heated produced from biomass pyrolysis oil with the formation of the thread 22 is produced from biomass pyrolysis oil with a low content of solids, and the remainder 24 of the filter, which is formed remote from solid impurities. Preferably, the thread 22 is produced from biomass pyrolysis oil with a low content of solids has a content of solids of about 1500 part per million or less, and more preferably 1000 part per million or less. The rest 24 on the filter is removed from the filter medium of the filter unit 20 with high throughput using, for example, centrifugal force, pressure drop, and the like, and comes from the filtration unit 20 with high bandwidth to the reservoir 26.

Stream 22 is produced from biomass pyrolysis oil with a low content of solids is served on fine-pored filter 28. Fine-pored filter 28 may be, for example, vacuum, gravity, or pressure filtration, or the like. Fine-pored filter 28 can contain a filter medium or combination of filter media, such as nitrocellulose, cellulose acetate, glass, polymers (such as policecraft�ritilan and nylon-6), wire mesh, sintered metal and the like, and the material can be given different shapes, sizes and configurations. Preferably finely porous filter medium has a pore diameter smaller than the particles of the remaining fragments of coal and other insoluble impurities produced from biomass pyrolysis oil. In the example implementation, fine-pored filter 28 includes a filter medium having a pore diameter of 50 μm or less, and preferably from 5 to 50 μm. Examples of suppliers of filters/filter media and filtration equipment include Whatman Plc (headquartered in Kent, UK), Millipore Corporation (headquartered in Billerica, units mA), Filtrex Corporation (with its headquarters in Attleboro, mA) and Mott Corporation (headquartered in Farmington, Conn.)

As shown in the drawing, a fine-pored filter 28 is a filtration system under pressure, and flow 22 is produced from biomass pyrolysis oil with a low content of solids, is fed to a fine-pored filter 28 and filtered them, preferably without causing a significant pressure drop on the fine screen 28. In one example, when filtering a stream 22 is produced from biomass pyrolysis oil with a low content of solids, there is a pressure drop on the fine screen 28 is not more than 175 kPa. In mailcopa�ist the filter 28 removes essentially all of the remaining solids, for example, when fine filtration, from the stream 22 is produced from biomass pyrolysis oil with a low content of solids, with the formation of the thread 30 is produced from biomass pyrolysis oil with a very low content of solids, and the remainder 32 of the filter, which is formed remote from solid impurities. Preferably, the thread 30 is produced from biomass pyrolysis oil with a very low solids content has a content of solids of about 100 part per million or less, and more preferably 50 part per million or less, and most preferably 10 part per million or less. The residue 32 on the filter is removed from the filter medium and fine filter 28 using, for example, centrifugal force, pressure drop, and the like, and comes from a fine-pored filter 28 to the reservoir 26. Residues 24 and 32 on the filter are removed from the tank 26 through conduit 34 for removal, additional processing, as fuel to produce heat and/or the like.

The inventors found that by filtering produced from biomass pyrolysis oil to remove essentially all solid contaminants, removed most of the metals, and increases thermal stability of the oil. As used herein the expression "thermal stability" means the ability of an oil stain resistance,�affect the changes in chemical composition and to maintain phase stability, when you change the oil temperature or during prolonged storage. Filtering helps to reduce the viscosity, supports uniformity by improving the phase stability, improves transparency and increases the ability to pump oils obtained in accordance with examples of implementation discussed in the description.

The remaining metals in the stream 30 is produced from biomass pyrolysis oil with a very low content of solids, mainly dissolved in oil and are in the form of metal cations. In one example, the stream produced from biomass pyrolysis oil with a very low solids content is the total content of metals 1000 part per million

Stream 30 is produced from biomass pyrolysis oil with a very low content of solids, enters the zone 36 of ion exchange. In one embodiment, implement, zone 36 ion exchange may include an ion exchange unit periodic regime containing ion exchange resin, and the function of ion exchange is interrupted for the purpose of regenerating the ion exchange resin when it becomes waste (i.e. inactive or used). Alternatively, zone 36 ion exchange may include two or more ion exchange units, and each contains ion-exchange resin (fresh or active IO�obmana resin in one unit and the spent ion-exchange resin in another block), and which is made in the configuration of the switchable layer for continuous operation, regeneration of spent ion-exchange resins in one unit, while the fresh ion-exchange resin in a different unit is used for ion exchange, as is well known in the art. In addition, there may be used other layout areas of ion exchange, which are known to those skilled in the art.

Stream 30 is produced from biomass pyrolysis oil with a very low content of solids in contact with ion-exchange resin and subjected to ion exchange so that the cations of the metals contained in the stream 30 is produced from biomass pyrolysis oil with a very low content of solids are captured by the ion exchange resin. In the exemplary embodiment of the active sites of the ion exchange resin contains sulfonic acid. When the thread 30 is produced from biomass pyrolysis oil with a very low content of solids in contact with the resin, the metal ions are preferably migrate from the oil to the active sites of the ion exchange resin. Metal ions in the stream 30 is produced from biomass pyrolysis oil with a very low content of solids are replaced by hydrogen ions from the resin with the formation of the thread 38 is produced from biomass pyrolysis oil with a low content of meth�low, and the spent resin. In the example implementation, the total content of metals in the stream 30 is produced from biomass pyrolysis oil with a very low solids content is reduced to a concentration of 100 parts/million or less with the formation of the thread 38 is produced from biomass pyrolysis oil with a low content of metals. Metals removed from the oil during ion exchange, include alkaline metals such as sodium (Na), potassium (K) and cesium (Cs), alkaline earth metals such as magnesium (Mg), calcium (Ca) and strontium (Sr) and transition metals such as iron (Fe), manganese (Mn) and Nickel (Ni).

The temperature of the ion exchange resin in the ion exchange can be from 10 to 120°C, and preferably from 20 to 60°C. the Flow 30 is produced from biomass pyrolysis oil with a very low content of solids can pass through the zone 36 ion exchange due to the positive pressure or gravity. When attached pressure, absolute pressure ranges from greater than 0 to 13790 kPa (0 to 2000 psig), more preferably from 0 to 689,5 kPa (from greater than 0 to 100 pounds/square inch), and most preferably from 13.8 to 206,8 kPa (2 to 30 psi). In the absence of applied pressure, the downward flow 30 is produced from biomass pyrolysis oil with a very low content of solids passes through a block (Il� blocks) ion exchange zone 36 ion exchange, moreover, there is a slow gravity elution.

In the example implementation, the thread 30 is produced from biomass pyrolysis oil with a very low content of solids passes through the ion exchange resin with an hourly volumetric fluid velocity (LHSV) from 0.1 to 20 h-1and preferably from 1 to 10 h-1. More than an hour bulk fluid velocity (LHSV), the less contact time for ion exchange. When you decrease the value of LHSV concentration of selected metal ions in the treated oil is greatly reduced.

When the concentration of metals in the stream 38 is produced from biomass pyrolysis oil with a low content of metals, reaches a predetermined level or when the concentration of the metal becomes constant (as determined by repeated measurements) over a long period of time, the contact between the oil and the resin can be completed and ion exchange is considered "full". The concentration of metal in the oil can be measured by means of atomic absorption spectroscopy (AAS), inductively coupled plasma - atomic absorption spectroscopy (ICP-AAS), or other known methods.

In accordance with embodiments of the ion exchange resin used in the area of 36 ion exchange, is a strongly acidic cation exchange resin. Preferably the resin is used in anti�nizovannoj form, that is, all active groups are-SO3H. In one example, the resin comprises a sulfonated copolymers of styrene.

Preferred sulfonic acids are resin macrostate patterns. As used herein "resin macrostate patterns are composed of two continuous phases - continuous porous phase and the continuous phase polymeric gel. Continuous phase polymeric gel structure consists of small spherical microgel particles agglomerated together with the formation of clusters, which, in turn, form a system of connecting pores. The surface area is the external surface microrelief clusters. Ion-exchange resin macrostate patterns can be obtained with different values of the surface area of from 7 to 1500 m2/g and an average pore diameter of from 5 to 10000 nm.

In addition, there may be used a gel-like resin. As used herein "gel-type resins are usually translucent. In gel-type resins do not have a continuous porous structure. Typically, the pores are considered as the micropores of the molecular scale. The porous structure is determined by the distance between polymer chains and cross-links, which varies with the crosslinking density of the polymer, the polarity of the solvent and operating conditions.

Some non-limiting examples of acidic ion-exchange resins, which can be used in accordance with examples of implementation include resin produced by Dow Chemical Co., with headquarters in Midland, pieces of Michigan, under the brand names/trademarks DOWEX® MARATHON C, DOWEX® MONOSPHERE C-350, DOWEX® HCR-S/S, DOWEX® MARATHON MSC, DOWEX® MONOSPHERE 650C, DOWEX® HCR-W2, DOWEX® MSC-1, DOWEX® HGR NG (H), DOWEX® DR-G8, DOWEX® 88, DOWEX® MONOSPHERE 88, DOWEX® MONOSPHERE C-600 B, DOWEX® MONOSPHERE M-31, DOWEX® MONOSPHERE DR-2030, DOWEX® M-31, DOWEX® G-26 (H), DOWEX® 50W-X4, DOWEX® 50W-X8, DOWEX® 66; resin manufactured by Rohm and Haas company, with headquarters in Philadelphia, Pennsylvania under the brand names/trademarks Amberlyst® 131, Amberlyst® 15, Amberlyst® 16, Amberlyst® 31, Amberlyst® 33, Amberlyst® 35, Amberlyst® 36, Amberlyst® 39, Amberlyst® 40 Amberlyst® 70, Amberlite® FPC11, Amberlite® FPC22, Amberlite® FPC23; resins produced by Brotech Corp., with headquarters in Bala Cynwyd, Pennsylvania, under the brand names/trademarks Purofine® PFC150, Purolite® C145, Purolite® C150, Purolite® S, Purofine® PFC100, Purolite® C100; and resin, produced by Thermax Limited Corp., with headquarters in Novi, Michigan, under the brand names/trademarks Monoplu™ S100 and Tulsion® T42. In addition, there may be used other acidic ion-exchange resin known to those skilled in the art.

Stream 38 is produced from biomass pyrolysis oil with a low content of metals is removed from the zone 36 of ion exchange for further processing, for use as a biofuel, and the like, and worked out�th ion-exchange resin remains in the zone 36 of ion exchange. If the zone 36 of ion exchange is performed as a batch process of ion exchange, the incoming stream 30 is produced from biomass pyrolysis oil with a very low content of solids in the zone 36 of ion exchange is interrupted for the regeneration of spent ion-exchange resin. Alternatively, if the zone 36 of ion exchange is performed as a continuous process with switchable layer, the stream 30 is produced from biomass pyrolysis oil with a very low content of solids is redirected from one ion exchange unit containing the spent ion exchange resin, the second ion exchange unit containing the regenerated ion exchange resin.

In accordance with an example implementation, then the spent ion exchange resin is regenerated. As shown in the diagram, the thread 40 of the oxygen-containing reagent for regeneration of spent ion-exchange resin is taken from storage tank 42 and 44 is pumped to the heat exchanger 46. In the exemplary embodiment of the oxygen-containing reagent for regeneration of ion exchange resins may include ethanol, methanol, acetone, 2-butanone, or a combination thereof. Preferably, the thread 40 of the oxygen-containing reagent for regeneration of ion-exchange resin is heated by indirect heat exchange in heat exchanger 46 to a temperature of from 30 �about 60°C with the formation of the thread 48 of the heated oxygen-containing reagent for regeneration of ion exchange resins. The thread 48 of the heated oxygen-containing reagent for regeneration of ion-exchange resin passes through the 36 ion exchange to remove any residual oils by washing the spent ion-exchange resin. The flow of oxygen-containing reagent for regeneration of ion-exchange resin containing residual oil is removed from the zone 36 of ion exchange and can be added to the stream 38 is produced from biomass pyrolysis oil with a low content of metals; this was found to improve the stability of the oil during storage, or stream is removed via a separate line. Usually used from 0.1 to 10 volumes of oxygen-containing reagent for regeneration of ion exchange resins in the working volume of the ion exchange unit to remove residual oil, and then interrupt the flow of the stream 48 is heated alcohol reagent for regeneration of ion exchange resins in the zone 36 of ion exchange.

In accordance with another variant of implementation, the zone 36 ion exchange enters the wash stream 50 of fresh water, which passes over the spent ion-exchange resin to remove any remnants of the oxygen-containing reagent for regeneration of ion exchange resins. Rinsing in fresh water and the remnants of the oxygen-containing reagent for regeneration of ion-exchange resins are removed from the zone 36 of ion exchange on line 52.

In the exemplary embodiment of the thread 54 of the solution with sodium ions enters the zone 36 of ion exchange and passes over the washed waste ion-exchange resin. Sodium ions from the stream 54 of the solution with sodium ions are exchanged with metal ions contained in the spent ion-exchange resin, such as potassium ions, calcium ions, magnesium ions, strontium ions, titanium ions, vanadium ions, copper ions, iron ions, cobalt ions, chromium ions, lead ions, manganese ions, Nickel ions, zinc ions and other ions of one-, two -, or trivalent metals, or combinations thereof, present in the original pyrolysis oil, which was removed by ion exchange. The inventors found that by removing, in particular calcium ions in the spent resin with sodium ions, at a later stage of regeneration of the spent resin with an aqueous solution of sulfuric acid prevents the formation of calcium sulfate, which has a tendency to sedimentation and clogging or blockage of the zone 36 of ion exchange. In one example, the thread 54 of the solution with sodium ions is an aqueous solution of sodium chloride having a concentration of from 5 to 15 mol.%. After sharing the solution with sodium ions removed from the ion exchange unit through conduit 56, and interrupted the flow of the thread 54 of the solution with sodium ions in the zone 36 of ion exchange, preferred�Stateline, when essentially all of the calcium ions in the spent ion-exchange resin will exchange for sodium ions.

Then the spent ion-exchange resin is in contact with the stream 58 of an aqueous solution of sulfuric acid to remove the sodium ions and the ions of any other metals contained in spent ion-exchange resin, and these ions are replaced by hydrogen ions during regeneration of spent ion-exchange resin. In the exemplary embodiment of the flow 58 of an aqueous solution of sulfuric acid contains from 5 to 10 mol.% of sulfuric acid. After ion exchange the aqueous solution of sulfuric acid is removed from the zone 36 of ion exchange through conduit 60 for further processing, output and the like, and the wash stream 62 fresh water passes over the regenerated catalyst to remove all traces of acid. Water rinse any acid residues deleted from the zone 36 of ion exchange through conduit 64. Now regenerated ion-exchange resin is prepared for engagement with the thread 30 is produced from biomass pyrolysis oil with a very low solids content, with the formation of additional quantities produced from biomass pyrolysis oil with a low content of metals.

Therefore, the described methods and devices for obtaining produced from biomass pyrolysis oils with low content of�against metals. Unlike the prior art, described herein in the examples of the implementation of the output is produced from biomass pyrolysis oil with a low content of solids by filtration produced from biomass pyrolysis oil using the filtration unit with high capacity. Preferably, produced from biomass pyrolysis oil is heated to reduce the viscosity of the transmission oil through a filtration unit with high capacity, which facilitates filtration. In the filtration unit with high bandwidth are removed larger solid pieces of coal, which include metals and other insoluble solids from produced from biomass pyrolysis oil, preferably without plugging or clogging of the filtration unit. Subsequently produced from biomass pyrolysis oil with a low content of solids subjected to filtration through a fine filter to remove the remaining finer debris, with the formation produced from biomass pyrolysis oil with a very low solids content and high thermal stability. In addition, because of the larger debris has already been removed from produced from biomass pyrolysis oils by filtration unit with a high throughput method�spine, facilitated by filtering the remaining small solid fragments produced from biomass pyrolysis oil with a low content of solids using a fine-pored filter, preferably without plugging or clogging of the filtration unit. Produced from biomass pyrolysis oil with a very low content of solids is treated using ion exchange resin, which further reduces the concentration of metals in the oil, with the formation produced from biomass pyrolysis oil with a low content of metals, which is more appropriate for use as a biofuel.

Although at least one example embodiment of the invention shown in the preceding detailed description, it should be recognized that there are a large number of variations. In addition, it should be recognized that the embodiments or examples of the implementation is only an illustration, and not intended to be any limitation of the invention, applicability or configuration of the invention. Rather, the detailed description will provide specialists in the art of the easy action plan for the practical implementation of the invention, it is obvious that can be made various changes in the function and arrangement of elements described in the example is p�effect, without deviation from the scope of the invention which is set forth in the appended claims and legal equivalents.

1. A method of producing produced from biomass pyrolysis oil (38) with a low content of metals, which comprises the steps:
filtration produced from biomass pyrolysis oil (12) in the filtration unit (20) with high throughput, which has a capacity of 10 l/m2per hour or more, obtaining produced from biomass pyrolysis oil (22) with a low content of solids;
filtration produced from biomass pyrolysis oil (22) with a low content of solids through a fine filter (28) having a pore diameter of 50 μm or less, obtaining produced from biomass pyrolysis oils (30) with a very low content of solids; and
contact produced from biomass pyrolysis oils (30) with a very low content of solid substances with ion-exchange resin to remove metal ions and to obtain produced from biomass pyrolysis oil (38) with a low content of metals.

2. A method according to claim 1, wherein stage filtration produced from biomass pyrolysis oil (12) includes filtering produced from biomass pyrolysis oil (12) in the filtration unit with high capacity, which has a pass�th capacity 20 l/m 2per hour or more.

3. A method according to claim 1, wherein stage filtration produced from biomass pyrolysis oil (12) includes filtering produced from biomass pyrolysis oil (12) in the filtration unit (20) with high throughput, which has a capacity of from 100 to 500 l/m2an hour.

4. A method according to claim 1, wherein stage filtration produced from biomass pyrolysis oil (12) includes obtaining produced from biomass pyrolysis oil (22) with a low content of solids, having a solids content of 1500 ppm or less.

5. A method according to claim 1, wherein stage filtration produced from biomass pyrolysis oil (22) with a low content of solids enables filtering produced from biomass pyrolysis oil (22) with a low content of solids through a fine filter (28) having a pore diameter of from 5 to 50 microns.

6. A method according to claim 1, wherein stage filtration produced from biomass pyrolysis oil (22) with a low content of solids enables filtering produced from biomass pyrolysis oil (22) with a low content of solids through a fine filter (28) having a pore diameter of from 5 to 50 μm, and in which stage filtration produced from biomass pyrolysis oil (12) includes filtering produced from biomass p�rolinho oil (12) in the filtration unit (20) high-throughput, which has a bandwidth of 200 to 500 l/m2an hour.

7. A method according to claim 1, wherein stage filtration produced from biomass pyrolysis oil (22) with a low content of solids includes obtaining produced from biomass pyrolysis oils (30) with a very low content of solids, which has a solids content of 100 parts/million or less.

8. A method according to claim 1, which additionally includes the step of heat produced from biomass pyrolysis oil (12) to a temperature of from 30°to 60 ° C up to the stage filtration produced from biomass pyrolysis oils (12).

9. A method of producing produced from biomass pyrolysis oil (38) with a low content of metals, which comprises the steps:
filtration produced from biomass pyrolysis oil (12) obtaining produced from biomass pyrolysis oils (30) with a very low solids content;
contacting the first portion produced from biomass pyrolysis oils (30) with a very low content of solid substances with acidic ion-exchange resin having a sulfonic group, obtaining first the amount produced from biomass pyrolysis oil (38) with a low content of metals and spent ion-exchange resins;
regeneration of spent ion-exchange resin comprising contacting otruba�Anna ion-exchange resin with a solution of (54), containing sodium ions to exchange potassium ions, calcium ions, magnesium ions, strontium ions, titanium ions, vanadium ions, copper ions, iron ions, cobalt ions, chromium ions, lead ions, manganese ions, Nickel ions, zinc ions and other one-, divalent or trivalent metal ions present in produced from biomass pyrolysis oil (12), or combinations thereof, which were removed by ion exchange from the spent ion-exchange resin with sodium ions from the solution (54), with the receipt of spent ion-exchange resins, containing sodium ions, which is regenerated with obtaining the regenerated ion-exchange resin; and
contacting the second portion produced from biomass pyrolysis oils (30) with a very low content of solids with the regenerated ion-exchange resin to obtain a second quantity produced from biomass pyrolysis oil (38) with a low content of metals.

10. A method according to claim 9, in which stage of filtering includes filtering produced from biomass pyrolysis oil (12) in the filtration unit (20) with high bandwidth with getting produced from biomass pyrolysis oil (22) with a low content of solids and filtering produced from biomass pyrolysis oil (22) with a low content of solids through a fine filter (28) with Paul�the increase produced from biomass pyrolysis oils (30) with a very low solids content.



 

Same patents:

FIELD: chemistry.

SUBSTANCE: invention relates to an apparatus having a housing 1 with a pipe for discharging a portion of diesel fuel to be cleaned 10 in a perforated bottom 9, a cover 2 with an inlet pipe 3, a hydrodynamic filter element mounted by a spring 4, having a porous partition wall 6 made in form of a truncated regular hexagonal pyramid from hydrophobic resin-separating material and placed between flat bases, the top 5 one of which is connected to the inlet pipe 3 and the bottom 7 one is connected to the pipe for discharging a portion of the diesel fuel to be cleaned 10. A cylindrical nozzle 12 is mounted on the outer side of the bottom 9, said nozzle being equipped with an outlet pipe for cleaned diesel fuel 19 and a pipe for draining sludge 17, in which there is an additional hydrodynamic filter element, having a porous partition wall 14, made in form of a truncated regular hexagonal pyramid from hydrophobic resin-separating material, top and bottom flat bases 13 and 15, connected to the pipe for discharging a portion of the diesel fuel to be cleaned 10 and the pipe for draining sludge 17, respectively. The ratio of the total area of the side faces of the porous partition wall 14 of the additional filter element to the total area of the side faces of the porous partition wall 6 of the filter element placed in the housing 1 is equal to 1:10.

EFFECT: high efficiency of cleaning diesel fuel by filtering by avoiding removal of a portion of diesel fuel in order to remove oxidation products.

3 dwg, 2 tbl

FIELD: oil and gas industry.

SUBSTANCE: invention refers to liquid hydrocarbon purification method in which preliminary separation and coagulation is performed on metal porous partition of the filter at twisting of continuous medium flow via spiral generatrixes made from dielectric material and installed in a gap between its plastic housing and partition and action of electric field when static charge is induced on inner surface of housing with induction of the charge of opposite sign on outer surface of metal porous partition, there tangentially supplied is flow with the main mass of mechanical impurities and water with size which is more than nominal pore size of prefilter to the separator shell with flow swirling between its inner wall reinforced with foamed metal - high-porous cellular material (HPCM) with coagulation properties, and shaped guide from plastic material fixed on pylons from dielectric material in upper part of the shell with induction of electric field in a gap between the latter; sediment is transported back to the pump inlet, and filtrate is supplied with additional pump for separation on porous partition of filter with coalescing properties from polymer of spatial-globular structure (SGS); at that, the rest part of mechanical impurities and water with size which is more than nominal pore size of filter is constantly supplied with turbulent medium flow to supply main line of separator; purified filtrate is cooled in heat exchanger with further removal of water fog on fine filter from SGS of polymer.

EFFECT: increasing purification efficiency of hydrocarbon media.

3 dwg, 1 tbl, 1 ex

FIELD: gas-and-oil producing industry.

SUBSTANCE: invention refers to procedure for filtration of chiefly transformer oil by its heating and supplying through filter from beneath upward. Also, oil is heated to temperature 70-150°C. The procedure of filtration is carried out as repeating cycles under a mode of velocity vacuum-pulse effect onto purified oil through a filter at duration of the pulse up to 5.0 sec and at pressure over 50 mm of m.c. with successive conditioning at residual vacuum during not more, than 10 min. Further, vacuum is dropped at the end of the cycle to atmospheric pressure and simultaneously the filter is regenerated by supplying dry heated air from top downward. The invention also refers to the device for implementation of the filtration procedure.

EFFECT: considerable acceleration of filtration procedure and regeneration of filter during purification of transformer oil.

6 cl, 3 dwg

FIELD: process engineering.

SUBSTANCE: proposed method comprises separating painted bodies and/or asphaltene admixtures from the mix of hydrocarbons containing at least 90 % by weight of hydrocarbons with the help of membrane. Said membrane has initial stock feed side and permeate discharge side. Said method comprises also withdrawing hydrocarbon permeates at said discharge side. Said permeates have reduced content of painted bodies and/or asphaltene admixtures. Note here that aforesaid membrane is arranged in spirally coiled membrane module.

EFFECT: continuous operation without notable interruption of initial stock or permeate flows.

15 cl, 2 ex, 1 tbl, 5 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to a method of purifying oil, in which separation and coagulation are done in tangential mode on separating and coagulating porous walls of a filter, made in form of a sandwich from several coaxial cylindrical surfaces made from highly-porous cellular metal. During separation on the outer generatrix of the outer porous wall with deposition of a hydrophobic fluoroplastic coating, the main part of mechanical impurities and water with size greater than the standard size of pores are constantly taken into a separator made from two connected drums using a turbulent stream, with a set of circular porous walls of highly-porous cellular metal fitted, with size of pores increasing along the stream, at the perforated bottom of the cup in the upper part of the inner drum. Impurities are concentrated and condensed during sedimentation inside the latter. There is further separation on a hydrophobic grid, fitted on the coaxial gap in the lower part of the drums. Residual mater is fed to the input of the pump. Purification of the tangential stream of the liquid medium takes place with coagulation of micro-water droplets on the next cylindrical walls of highly-porous cellular metal of the filter, made with increasing size of pores along the stream. Micro-water droplets passing through are separated on the hydrophobic inner surface of the last wall, with horizontal and vertical drainage windows-cavities, with collection and precipitation in a collector and cleaning the filter with reverse flow of purified medium.

EFFECT: improved method of purifying oil.

2 ex, 2 tbl, 2 dwg

FIELD: installations for purification of industrial waste oils.

SUBSTANCE: the invention presents installation for purification of industrial waste oils. The installation is made in the form reminding hexactinal star, each beam of which has a rectangular cross-section and is a unit of a two-stage purification and all forward butt surfaces of each block are fused to each other in such a manner that forms hexahedral space, in the center of which on interception of vertical axial planes of the units there is a vertical cylindrical container linked to each unit by the oil pipelines and valves. At that each unit is placed in the body with a hermetically tightened cover with a felt washer and contains in series beginning from the center a perforated plate with stops, a fabric gasket, a form with cells for a filling material, small-mesh copper lattice, a sheet batting, a perforated plate, a perforated plate with stops, a fabric gasket, a form with cells for a filling material, a small-sized copper mesh, batting, small-mesh copper lattice, a sheet batting, a perforated plate with stops, an outlet for the purified oil located on the rear butt wall of the body and an inlet - on its front wall. The invention ensures production of an installation convenient in operation, compact and with a high productivity at a high degree of purification of oils.

EFFECT: the invention ensures production of an installation convenient in operation, compact and with a high productivity at a high degree of purification of oils.

3 dwg

The invention relates to a method of regeneration flooded engine oils, contaminated mechanical impurities, and can be used for the purification of waste oils for the automotive, machine building and agricultural enterprises

The invention relates to the field of oil production and can be used on oil-producing and oil-refining enterprises

The invention relates to the oil industry and can be used for the disposal of oil sludge generated at the sites of collection and treatment of oil, gas and water, in particular oil sludge accumulated in the layered oil storehouses, barns, storage tanks, etc

The invention relates to the field of engine development, in particular to the processing of fuel for diesel internal combustion engines

FIELD: chemistry.

SUBSTANCE: method includes producing synthesis gas, converting the synthesis gas into methanol, producing a concentrate of aromatic hydrocarbons and water from the methanol in the presence of a catalyst, separating the water, blowing off hydrocarbon residues from the water, separating the formed concentrate of aromatic hydrocarbons and a hydrogen-containing gas, which is at least partially used when producing synthesis gas, to change the ratio H2:CO=1.8-2.3:1 therein. The production of aromatic hydrocarbons from methanol in the presence of a catalyst is carried out in two series-connected aromatic hydrocarbon synthesis reactors - a first low-temperature isothermic aromatic and aliphatic hydrocarbon synthesis reactor and a second high-temperature adiabatic reactor for synthesis of aromatic and aliphatic hydrocarbons from the aliphatic hydrocarbons formed in the first reactor and subsequent stabilisation in a unit for stabilising the concentrate of aromatic hydrocarbons. At least part of the hydrogen-containing gas is fed into a synthesis gas production unit and used to obtain synthesis gas using an autothermal reforming technique with a pre-reforming or non-catalytic partial oxidation unit using oxygen or oxygen-air mixtures as the oxidising agent to change the ratio according to the relationship (m.f.H2-m.f.CO2)/(m.f.CO+m.f.CO2)≥2, where m.f. is the molar fraction of a component in synthesis gas. The invention also relates to an apparatus.

EFFECT: high efficiency of producing concentrates of aromatic hydrocarbons.

12 cl, 2 dwg, 1 ex

FIELD: oil and gas industry.

SUBSTANCE: invention relates to a method for obtaining hydrocarbon products, which involves the following stages: (a) provision of synthesis gas containing hydrogen, carbon monoxide and carbon dioxide; (b) reaction of conversion of synthesis gas to an oxygenate mixture containing methanol and dimethyl ester, in presence of one or more catalysts, which simultaneously catalyse the reaction of conversion of hydrogen and carbon monoxide to oxygenates, at pressure of at least 4 MPa; (c) extraction from stage (b) of an oxygenate mixture containing quantities of methanol, dimethyl ester, carbon dioxide and water together with non-reacted synthesis gas, introduction of the whole amount of the oxygenate mixture without any additional treatment to a stage of catalytic conversion of oxygenates (d); (d) reaction of oxygenate mixture in presence of a catalyst, which is active in conversion of oxygenates to higher hydrocarbons; (e) extraction of the outlet flow from stage (d) and separation of the outlet flow into tail gas containing carbon dioxide occurring from synthesis gas and carbon dioxide formed at stage (b), liquid hydrocarbon phase containing the higher hydrocarbons obtained at stage (d) and liquid water phase where the pressure used at stages (c)-(e) is mainly the same as that used at stage (b); besides, some part of tail gas obtained at stage (e) is recirculated to stage (d), and the rest part of tail gas is discharged.

EFFECT: this method is a method in which there is no recirculation of non-reacted synthesis gas to a synthesis stage of oxygenates and without any cooling of a conversion reaction of dimethyl ester to higher hydrocarbons.

6 cl, 2 ex, 1 tbl, 2 dwg

FIELD: chemistry.

SUBSTANCE: claimed invention relates to liquid fuel compositions. Invention deals with liquid fuel composition, containing, at least, one fuel component and from 0.1%(vil.) to 99.5% (vol.) of fraction of distillation of component, which contains, at least, one C4+ compound, derived from water-soluble oxygenated hydrocarbon. Method includes supply of water and water-soluble oxygenated hydrocarbon, including C1+O1+ hydrocarbon, in water liquid phase and/or vapour phase; supply of H2; carrying out catalytic reaction in liquid and/or vapour phase between oxygenated hydrocarbon and H2 in presence of deoxygenation catalyst at temperature of deoxygenation and pressure of deoxygenation to obtain oxygenate, which contains C1+O1-3 hydrocarbon in reaction flow; and carrying put catalytic reaction in liquid and/or vapour phase for oxygenate in presence of condensation catalyst at temperature of condensation and pressure of condensation to obtain C4+ compound, where C4+ compound includes representative, selected from the group, consisting of C4+ alcohol, C4+ ketone, C4+ alkane, C4+ alkene, C5+ cycloalkane, C5+ cycloalkene, aryl, condensed aryl and their mixture. Invention also relates to petrol composition, Diesel fuel composition, kerosene composition and methods of obtaining thereof.

EFFECT: improved characteristics of fuel composition, containing component, obtained from biomass.

9 cl, 19 dwg, 14 tbl, 59 ex

FIELD: chemistry.

SUBSTANCE: method includes stage of contact of pyrolysis oil, produced from biomass, with first catalyst of oxygen removal in presence of hydrogen under first, preliminarily set conditions of hydropurification with formation of first effluent stream of pyrolysis oil with low oxygen content. First catalyst of oxygen removal contains neutral catalytic carrier, nickel, cobalt and molybdenum. First catalyst of oxygen removal contains nickel in quantity from 0.1 to 1.5 wt % in terms of oxide. Version of method is also claimed.

EFFECT: extension of assortment of oxygen removal methods.

10 cl, 1 dwg

FIELD: chemistry.

SUBSTANCE: method consists in successive application on carrier - amorphous aluminium oxide - by method of soaking with following drying and annealing of: water solution of thermally unstable salt of element, selected from the first group, including titanium, tin, zirconium, then water solution of thermally unstable salt of element, selected from the second group, including molybdenum, tungsten, and after that water solution of thermally unstable salt of element, selected from the third group, including cobalt, nickel. Obtained catalyst contains, wt %: oxide of element from the first group - 4.2-15.0, oxide of element from the second group - 12.4-14.2, oxide of element from the third group - 2.1-3.8, remaining part - aluminium oxide. After that, catalyst is activated first by soaking in hydrogen medium at temperature 450-500°C, pressure 5-8 MPa for 3-4 h, then sulfidation at temperature 250-300°C, pressure 5-8 MPa for 3-4 h. And sulfidation is carried out with mixture of hydrogen sulfide and hydrogen with concentration of hydrogen sulfide 10-15 vol%.

EFFECT: method makes it possible to obtain catalyst, which has increased isomerisation ability and preserves catalytic activity with respect to reaction of isomerisation for long time, which results in obtaining Diesel fuel, which has improved low-temperature properties.

4 ex

FIELD: chemistry.

SUBSTANCE: method of biodiesel production is realised by the re-etherification in mixing natural oil, alcohol and a catalyst and following separation of the target product. The method is characterised by the fact that at the first stage of the re-etherification iron sulphate (II) is applied as the catalyst, after which iron sulphate and precipitated glycerol are separated and the mixture of alcohol, oil and ethers of fatty acids are supplied to the second stage of the re-etherification, at which as the catalyst used is an enzyme - lipase, immobilised on the surface, after which glycerol and the enzyme catalyst are separated and the mixture of alcohol and biodiesel is directed to a stage of the target product separation.

EFFECT: method makes it possible to simplify the process of the re-etherification reaction and increase the completeness of the reaction process.

6 cl, 1 tbl

FIELD: process engineering.

SUBSTANCE: invention relates to hydraulic treatment of hydrocarbon fuel. Proposed method comprises production of hydrocarbon stock to be processed including renewable organic substance with hydrogen flow and its feed to hydraulic treatment by bringing said hydrocarbon stock in contact with at least one stationary catalyst bed. Exit flow is fed into hot separator for extraction of top fraction from hot separator and of bottom fraction from separator bottom. Top fraction is fed to water steam conversion while exit flow is directed into cold separator for extraction of gaseous top fraction from cold separator as gas flow enriched with hydrogen to be directed to circulation. Gaseous top fraction is fed to hydrogen sulphide recuperation plant to extract a gaseous flow with decreased content of hydrogen sulphide and carbon dioxide to be fed back in the process.

EFFECT: production of hydrogen to allow decreasing the fresh hydrogen demand at hydraulic treatment stage.

9 cl, 2 dwg, 3 tbl, 2 ex

FIELD: chemistry.

SUBSTANCE: claimed invention relates to methods (processes) and systems for processing triglyceride-containing oils of biological origin with obtaining base oils and fuels for vehicles. Method of obtaining base oil and Diesel fuel includes the following stages: a) processing triglyceride-containing vegetable oil with realisation of oligomerisation and deoxygenation of components on the basis of unsaturated fatty acids, contained in it, with obtaining oligomerised mixture, with said processing including hydration and further removal of water; b) isomerisation of oligomerised mixture above isomerisation catalyst with obtaining isomerised mixture, and isomerised mixture contains base oil component and Diesel fuel component, and isomerised mixture contains, at least, 10 wt % of alkanes with number of carbon atoms 30 or higher, and c) distillation of isomerised mixture with obtaining base oil and Diesel fuel, where oligomerised mixture includes oligomer component, and said oligomer component includes, at least, 50 wt % of dimeric compounds.

EFFECT: processing of oils of biological origin into wide range of products with good level of properties.

11 cl, 4 dwg, 1 ex

FIELD: chemistry.

SUBSTANCE: present invention describes a method of producing hydrocarbon raw material for synthesis of biofuel from lignin. The method involves hydrotreatment of lignin-containing raw material to obtain raw material for biofuel. The lignin-containing raw material contains lignin which is separated from black liquor from a pulping method. The lignin is separated from black liquor from a pulping method by injecting carbon dioxide (CO2) gas. The lignin-containing raw material further contains still residues from an oil refining plant.

EFFECT: as a result of hydrotreatment of lignin contained in raw material for biofuel, oxygen content and average molecular weight of the latter decreases compared to lignin.

8 cl, 6 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to catalysis, particularly, to extraction of catalyst in conversion of oxygenates into olefins. Proposed method comprises the jobs that follow. Flow of the products of oxygenates conversion into olefins is bypassed into reaction shutdown tower. Bottom flow of said tower containing the catalyst is removed. Bottom flow of said tower is separated to obtain in fact clarified fluid and flow bearing the catalyst. Catalyst-bearing flow is bypassed into drying chamber and dried therein to obtain in fact dry catalyst by mixing it with dry heated gas whereat said gas is heated to 150°C to 250°C. Dried catalyst is bypassed into catalyst regenerator for the latter to be recovered.

EFFECT: catalyst extraction.

9 cl, 1 dwg

FIELD: oil and gas industry.

SUBSTANCE: invention is related to the method for removal of organic sulphur compounds from liquid hydrocarbon fuel by means of absorbers when fuel at a temperature within the range from 0 up to 100°C and atmospheric pressure is passed through a still absorber with a relative feed space velocity in the range of values of 0.1-10 h-1, at that an alumino-http://alk.pp.ru:8080/c/m.exe?t=2914656_1_2&s1=%EA%EE%E1%E0%EB%FC%F2-%EC%EE%EB%E8%E1%E4%E5%ED%EE%E2%FB%E5 catalyst of IK-GO-1 brand or alumino-nickel-molybdenum catalyst of GO-70 brand and/or synthetic zeolites of NaX or ZSM type and/or materials containing aluminium oxides or zinc and copper oxides are used as the absorber. The absorber is used independently or in combination with other several materials placed in layers or in one mixed layer.

EFFECT: effective removal of organic sulphur compounds.

4 cl, 9 tbl, 9 ex

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