Method of processing sulfur-containing oil sludge with high water content

FIELD: chemistry.

SUBSTANCE: method for processing a sulfur-containing oil sludge with a high water content involves premixing the oil sludge with a hydrocarbon solvent, activating the product produced by exposing the latter to electromagnetic radiation with a frequency of 40-55 MHz, a power of 0.2-0.6 kW, with an activation time of 1-8 hours and a temperature of 40-70°C, separating the hydrocarbon, aqueous and solid phases from the activated product, distilling the hydrocarbon solvent from the hydrocarbon phase, and carrying out the hydrocracking produced by stripping the hydrocarbon component in the presence of the zeolite-containing catalyst at a temperature of 400-500°C, a hydrogen pressure of 50-100 atm, for 2.0-3.0 hours to produce the desired oil.

EFFECT: producing the target petroleum product with low sulfur content.

3 ex

 



 

Same patents:

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the method of oil preparation including pre-separation, unit for dehydration and desalination, and final separation; under it the column with nozzle and reboiler is used as final separator.

EFFECT: crude oil cleaning of hydrogen sulphide, saturated steam pressure decreasing.

2 cl, 5 dwg

FIELD: oil and gas industry.

SUBSTANCE: hydrocarbon material processing plant in the northern regions includes raw material and product tank farms, hydrocarbon material stabilising unit, atmospheric distillation unit for stable hydrocarbon material, gas fractionation unit for hydrocarbon gas released at atmospheric distillation unit and stabilising unit, unit for isomerisation, hydrofining and reforming benzene fraction received at atmospheric distillation unit with production of high-octane gasoline, hydrofining unit for diesel fuel fraction received at atmospheric distillation unit and its further dewaxing with output of either winter or arctic diesel fuel, unit of sanitary purification from acid gases with further disposal of effluent in absorption wells for injection into the formation, unit for compounding different flows of hydrocarbon raw material, unit for compounding commercial products such as residue of atmospheric distillation fractioning, ballast fractions of recycling units and a part of stabilised input raw material with production of transported merchantable oil and system of pipelines interconnecting process units and tank farms.

EFFECT: effective processing of hydrocarbon material in the northern regions, expanding range of commercial products.

13 cl, 1 dwg, 3 tbl

FIELD: oil and gas industry.

SUBSTANCE: invention is referred to extraction of flows of hydrotreated hydrocarbons. Invention is referred to hydrotreatment method with extraction hydrotreated hydrocarbons that includes hydrotreating of hydrocarbon material in hydrotreating reactor with production of hydrotreating effluent; stripping in regard to cold flow of hydrotreating effluent, which is a part of the above hydrotreating effluent flow, in cold stripping column by means of stripping medium with production of cold stripped flow; stripping in regard to hot flow of hydrotreating effluent, which is a part of the above hydrotreating effluent flow, in hot stripping column by means of stripping medium with production of hot stripped flow and fractionating of cold and hot stripped flows in the column of final fractioning to receive product flows. Invention is also referred to plant for hydrotreatment with extraction hydrotreated hydrocarbons.

EFFECT: significant saving on operational and capital costs.

8 cl, 4 dwg, 1 ex

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the method of rectification of hydrocarbon mixes comprising the adding of methane containing gas to the hydrocarbon mix, heating and supply of the obtained mix into the supply section of the rectifying column. The methane containing gas is mixed with the hydrocarbon mix using the ejection method, while from the cube of the rectifying column the residue is separated a part of which, used as a hot flow, is mixed with the methane containing gas using the ejection method and the mix from the ejector is heated and supplied into the cube of the rectifying column.

EFFECT: improvement of the process of hydrocarbon mix rectification due to decrease of content of low-boiling components in diesel fraction.

1 tbl, 1 ex

FIELD: oil and gas industry.

SUBSTANCE: oil treatment method includes oil separation into fractions in the rectification tower, extraction of natural gas liquids (NGL), cooling of NGL up to temperature sufficient for condensation, delivery of condensed NGL to buffer-separating container, pumping out of a part of NGL to the top part of the rectification tower and excessive part to the warehouse. NGL vapours are taken from the top of the rectification tower, NGL vapours are cooled down in heat exchanger until liquid-gas mixture is formed, then the liquid-gas mixture is cooled in the other heat exchanger, further the liquid-gas mixture is cooled down in air cooler until NGL are transferred to liquid state, thereafter NGL are subject to separation in reflux tank and in centrifugal vertical gas separator, wherein from NGL water and light hydrocarbon gases are separated.

EFFECT: increased output of NGL due to reduced losses at pre-treatment.

1 dwg

FIELD: oil and gas industry.

SUBSTANCE: oil sludge processing facility comprises unit for oil sludge separating to oil concentrate, oily water and mechanical admixtures, unit of oil concentrate after-cleaning, water cleaning unit, mechanical admixtures processing unit, unit for oil concentrate thermal conversion including equipment for fractionation, unit for stabilisation by hydrogenation and stabilisation of light fractions, and unit for gas cleaning of hydrogen sulphide. Unit of oil concentrate after-cleaning is connected with the unit for oil concentrate thermal conversion by the line of circulating thinner, and with unit for stabilisation by hydrogenation and stabilisation of light fractions by stabilisation steam line.

EFFECT: increased quality of commercial products, reduced environment pollution.

1 dwg

FIELD: oil-and-gas industry.

SUBSTANCE: invention relates to chemical, petrochemical and oil-processing industry. The invention relates to the method of evaporation of multicomponent mixes according to which the mix is heated at high pressure, and then triple evaporation is performed at pressure decrease, the obtained vapours are mixed and removed from the system, and liquid is removed after the third stage of evaporation. At first the evaporation is performed in two stages with step pressure decrease, then at the third stage the evaporation is performed at the expense of mixing of vapours, obtained at the first stage, and the liquid, obtained at the second stage; the vapours obtained at the third stage are returned to the second stage where they interact with liquid and are removed from the system. The invention also relates to the method of supply of hot flow into a rectifying column according to which the method of evaporation of multicomponent mixes is used.

EFFECT: increase of stripping percentage, increase of productivity, and decrease of energy consumption.

3 cl, 2 dwg

FIELD: chemistry.

SUBSTANCE: invention concerns a method for producing high-density rocketry hydrocarbon fuel of Vankor Field oil by recovering a fraction distillating at a boiling point of 120-270°C to produce the fuel.

EFFECT: producing the unprofitable high-density rocketry hydrocarbon fuel.

4 ex

Oil refining method // 2548040

FIELD: oil-and-gas industry.

SUBSTANCE: method comprises the passing heated raw materials through heat exchangers and a furnace into a complex topping unit fitted with lateral stripping sections with supply to the bottom of sections and a complex topping unit of heated flows, withdrawal from the top of the complex topping unit of light petrol fraction and its supply after heating into a stabiliser tower with release of gas and stable light petrol fraction, side streams through stripping sections - heavy petrol, kerosene and diesel fractions and from the bottom of the complex topping unit of fuel oil, supply of fuel oil after heating in the furnace into the vacuum column with lateral withdrawal of diesel fraction, light vacuum gasoil using a circulating irrigation and from the bottom of the vacuum column - tar, using the circulating irrigation in the complex topping unit and supply of the heated flow into the bottom of the vacuum column, meanwhile the raw materials after heating in heat exchangers are separated into two flows, the flow, larger by quantity, is heated in the furnace and is supplied to the feeding zone of the complex topping unit, and smaller without heating is supplied between the supply of the bigger flow and withdrawal of diesel fraction, the complex topping unit contains two circulating irrigations, the heated flows are supplied to the bottom of stripping sections which are vapours after evaporation of light hydrocarbons from the residues of the stripping sections, into the bottom of the complex topping unit - heated gas from the stabilisation column where the reflux is selected, from the first plate of the vacuum column located above the supply of raw materials the heavy vacuum gasoil is withdrawn, it is used for heating of a part of diesel fraction of the vacuum column and supplied for mixing with fuel oil before its heating in the furnace, the diesel fraction heated by heavy vacuum gasoil is additionally heated in the furnace and supplied as a heated flow into the bottom of the vacuum column, lateral withdrawal of diesel fraction of the vacuum column is taken as a top circulating irrigation, and the light vacuum gasoil - as a lower one.

EFFECT: invention allows to lower energy consumption and to avoid formation of drains of acidic water, to increase withdrawal of vacuum gasoil and to decrease the level of decomposition of fuel oil in the furnace.

1 tbl, 1 dwg

Oil refining method // 2548038

FIELD: oil-and-gas industry.

SUBSTANCE: method comprises the passing of heated raw materials through heat exchangers and a furnace into a complex topping unit fitted with lateral stripping sections with supply into the bottom of sections and a complex topping unit of heated flows, withdrawal from the top of the complex topping unit of light petrol fraction and its supply after heating into a stabiliser tower with release of gas and stable light petrol fraction, side streams through stripping sections - heavy petrol, kerosene and diesel fractions and from the bottom of the complex topping unit of fuel oil, supply of fuel oil after heating in the furnace into the vacuum column with lateral withdrawal of diesel fraction, light vacuum gasoil using a circulating irrigation and from the bottom of the vacuum column - tar, using the circulating irrigation in the complex topping unit and supply of the heated flow into the bottom of the vacuum column, meanwhile the raw materials after heating in heat exchangers are separated into two flows, the flow, larger by quantity, is heated in the furnace and is supplied to the feeding zone of the complex topping unit, and smaller without heating is supplied between the supply of the larger flow and withdrawal of diesel fraction, the complex topping unit contains two circulating irrigations, the heated flows are supplied to the bottom of stripping sections which are vapours after evaporation of light hydrocarbons from the residues of the stripping sections, into the bottom of the complex topping unit - heated gas from the stabilisation column where the reflux is withdrawn, from the fuel oil before its heating in the furnace the light hydrocarbons are evaporated at the pressure lower than the pressure in the complex topping unit and they are supplied as heated flow into the bottom of the vacuum column, the heavy vacuum gasoil is withdrawn from the first plate of the vacuum column located above the supply of raw materials into the vacuum column and supplied for mixing with fuel oil liquid phase, after that the obtained after mixing flow is heated in the furnace and is supplied into the vacuum column as a raw material, the lateral withdrawal of diesel fraction of the vacuum column is taken as a top circulating irrigation, and the light vacuum gasoil - as a lower one.

EFFECT: invention allows to lower energy consumption and to avoid formation of drains of acidic water, to increase withdrawal of vacuum gasoil and to decrease the level of decomposition of fuel oil in the furnace.

1 dwg, 1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to a method for hydroconversion of heavy oil fractions - feed stock, the method including a zero step and subsequent N steps. The zero step includes feeding, into a reactor, material, a catalyst precursor - aqueous solution of a Mo (VI) salt or salts of Mo and Ni, and hydrogen at pressure of 4-9 MPa under normal conditions; reacting the material and hydrogen at 420-450°C in the presence of a precursor of a suspended nanosize molybdenum or molybdenum-nickel catalyst formed in the reactor; atmospheric or atmospheric-vacuum distillation of the hydrogenation product; removing the low-boiling fraction with a boiling point not higher than 500°C as a product and returning the high-boiling fraction or part thereof into the reactor. The next steps include feeding, into the reactor, material, a catalyst precursor, the returned part of the high-boiling fraction and hydrogen; reaction thereof; said atmospheric distillation of the hydrogenation product; removing the low-boiling fraction as a product; returning part of the high-boiling fraction into the reactor; burning at 1000-1300°C or gasification of the remaining part of the high-boiling fraction, after which trapped ash-slag residues are subjected to further oxidising burning at 800-900°C and the obtained ash product, which is carbon-free, is used to regenerate the catalyst precursor and produce an industrial concentrate of vanadium and nickel. The number of steps N is determined using formulae: bd(nn+nm+1)=a+i=1nmbi+benm, N=nn+nm+1, where nn is the number of steps with recirculation, after which equilibrium output of the low-boiling fractions is achieved; nm is the number of steps with recirculation after achieving equilibrium output of the low-boiling fractions, which enables to achieve a given output of low-boiling fractions from the feed stock; bd is the given output of low-boiling fractions, wt %; a is the output of low-boiling fractions at the zero step, wt %; bi is the output of low-boiling fractions at the i-th step before achieving equilibrium, wt %; be is the output of low-boiling fractions after achieving equilibrium, wt %, be>bd.

EFFECT: high output of low-boiling fractions, low molybdenum consumption, high degree of extraction of molybdenum, vanadium and nickel from the solution, enabling calculation of the required reactor volume, obtaining an industrial concentrate of vanadium and nickel, low hydrogen consumption.

3 cl, 1 dwg, 2 tbl, 2 ex

FIELD: chemistry.

SUBSTANCE: invention relates to catalytic hydrotreatment. The invention relates to a method for hydrotreatment of hydrocarbon material, wherein a liquid-phase stream containing hydrocarbon material and a sufficiently low hydrogen concentration to maintain a continuous liquid phase is fed into a hydrotreatment reactor which includes a hydrotreatment catalyst which forms a fixed bed and contains granules, the greatest geometric dimension of which is on average not more than 1.27 mm (1/20 inches) and more than 100 nm, to obtain a first hydrocarbon product stream, wherein the hydrotreatment reactor is operated with mass flow rate greater than 29300 kg/(h·m2) (6000 lb/(h·ft2)).

EFFECT: reduced expenses, easy design, high output of liquid product and products of higher quality.

7 cl, 1 dwg

FIELD: oil and gas industry.

SUBSTANCE: invention is related to hydrocracking reactor comprising a frame with reactor floor and head, inner heat insulation, input tubes for raw stock and hydrogen-containing gas, a tube for product output. Catalyst for all reactor zones is placed into a common circular basket consisting of two concentrical perforated shells with filter screens; the perforated shells are interconnected by a floor and a head. The upper filtering zone of the reactor is limited by a truncated cone. Raw stock flow passes radially from the centre to periphery thus filling cavity between the outer perforated shell and non-perforated shell, then other zones come in turn except for the last one, then it passes radially from periphery to the centre thus filling cavity inside the non-perforated shell up to the truncated cone, passes radially from the centre to periphery and leaves the reactor through the tube.

EFFECT: reducing hydraulic resistance of raw stock flow and hydrogen-containing gas, improvement of contact area of raw stock and hydrogen-containing gas with the catalyst, increasing readiness of the hydrocracking reactor for installation.

1 dwg

FIELD: oil and gas industry.

SUBSTANCE: invention is related to heavy oil stock processing method, including fuel oils, by hydrotreatment in presence of catalyst at high temperature within the range from 300 up to 600°C, contact time with the catalyst 0.5-2 g of the stock/g-cat/h, in presence of hydrogen supplied under pressure of 4-6 MPa with rate of 16-80 mg H2/g of the stock/h. The process is carried out in presence of the catalyst applied to a carrier of sepiolite with well-ordered spatial layout of macropores, at that the share of macropores with size from 50 nm up to 15 mcm is not less than 30% in the total specific volume of pores for the above catalyst.

EFFECT: reducing viscosity of heavy oil stock.

4 cl, 1 dwg, 1 tbl, 5 ex

FIELD: chemistry.

SUBSTANCE: invention relates to catalysis. The invention relates to a zeolite Y with a modified faujasite structure, the intracrystalline structure of which contains at least one micropore system, at least one system of fine mesopores with average diametre of 2-5 nm and at least one system of large mesopores with average diametre of 10-50 nm. The invention also relates to particles which contain such zeolites, as well as use thereof in oil refinement, particularly as a hydrocracking catalyst.

EFFECT: high activity.

17 cl, 10 dwg, 1 tbl, 4 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a method which involves steps of hydrogenating a mixture of secondary gas oil fractions in severe conditions at pressure of 270-300 kg/cm2 (hydrogen pressure not lower than 200 kg/cm2), temperature of 300-400°C, volume rate of feeding material of 0.3-1.0 h-1 and ratio of circulation gas to material of not less than 2000:1 (ratio of hydrogen to material of not less than 1500:1); a diesel fraction is separated from the hydrogenation products by fractionation; the diesel fraction is oxidised by mixing with oxidised diesel fuel to content of peroxide compounds of 3-5 mmol/kg, where aromatic (monocyclic, bicyclic, tricyclic) compounds, as well as paraffin-naphthene compounds are oxidised to form peroxide compounds in amount of 20-350 mmol/kg. The oxidised diesel fraction is compounded with the diesel fraction separated from hydrogenation products (non-oxidised) by fractionation to the required amount based on antiwear and cetane characteristics.

EFFECT: improved lubrication properties of fuel with improvement of cetane characteristics at the same time.

2 cl, 1 dwg, 7 tbl

FIELD: oil and gas industry.

SUBSTANCE: invention is referred to method for processing of heavy hydrocarbon stock with production of synthetic crude oil that includes a stage of thermal treatment and/or stage of raw segregation with obtainment of one or more fractions, compounding of fractions with raw stock individually or in a mixture; at that organometallic salt is introduced into raw stock and this salt has the formula M(OOC-R)n or M(SOC-R)n or M(SSC-R)n where R means alkyl, aryl, isoalkyl, tret-alkyl, alkylalaryl that can include hydroxyl, ketoxyl, aminoxyl, carboxyl or thiocarbamic group, n=1-3, and M means a transition metal from the periodic chart or nanoparticles of these metals based on 0.001-0.1% of metal weight per weight of raw stock.

EFFECT: improved quality of oil.

8 cl, 5 tbl, 8 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing a hybrid diesel fuel product, involving steps of combining vegetable oil with diesel fuel to form a first mixture, wherein the vegetable oil comprises not more than 10 wt % of said first mixture; hydrotreating the first mixture to yield a hydrotreated second mixture containing deoxygenated triglyceride components, wherein at least 95 at % of the sulphur present in the first mixture is converted to H2S in the second mixture; isomerising the hydrotreated second mixture at a separate second step in the presence of an isomerisation catalyst to yield a third mixture comprising hybrid diesel fuel having clouding point that is lower than that of the second mixture, wherein H2S and NH3 in the second mixture have not been removed prior to isomerising the second mixture at the second step and the entire stream coming from the first step is fed to the second step; and isolating the hybrid diesel fuel from the third mixture to yield a hybrid diesel fuel product. The invention also relates to a system for producing a hybrid diesel fuel product.

EFFECT: interstage removal of H2S and NH3 is not required between the stages of hydrotreating and isomerising, forming a low clouding point hybrid diesel fuel product, high efficiency of combined processing while reducing total production costs.

22 cl, 2 dwg, 1 tbl, 1 ex

FIELD: oil and gas industry.

SUBSTANCE: invention refers to oil-processing and petrochemical industries. The invention refers to the method for processing of hydrocarbon-containing raw material, and namely heavy and/or residual raw material, in which to raw material there additionally added is metal organic salt having the following formula: M(OOC-R)n, or M(SOC-R)n or M(SSC-R)n, where R means alkyl, aryl, isoalkyl, tert-alkyl, alkylaryl, which possibly includes hydroxylic, keto-, amino-, carboxyl, thiocarbamic group, where n - 1-3, and M means transition metal from elements of the Periodic system, at decomposition of which there obtained are metal nanoparticles, or nanoparticles of those metals, based on 0.001-0.1 wt % of metal per mass of raw material; at that, as hydrocarbon additive, there used are paraffin hydrocarbons, or olefinic hydrocarbons, or fraction of shale tar, or their mixture in the quantity of 2.0-20.0 wt %.

EFFECT: increasing conversion degree of hydrocarbon-containing raw material; increasing the yield of distillate fractions.

3 cl, 22 tbl, 16 ex

FIELD: oil and gas industry.

SUBSTANCE: invention refers to oil-processing and petrochemical industries and can be used to increase the processing depth of hydrocarbon-containing raw material. The invention refers to the processing method of hydrocarbon-containing raw material using metal nanoparticles and includes its separation into fractions so that light hydrocarbon fractions and residual fraction is obtained; at that, before the stage of separation into fractions, either metal organic salt having formula M(OOC-R)n, or M(SOC-R)n or M(SSC-R)n is introduced, where R means alkyl, aryl, isoalkyl, tert-alkyl, alkylaryl, which possibly includes hydroxylic, keto-, amino-, carboxyl, thiocarbamic group, N - 1-3, and M means transition metal from elements of the Periodic table, at the decomposition of which there obtained are metal nanoparticles, or nanoparticles of those metals based on 0.001-0.1 wt % of metal per mass of raw material; at that, at least some portion of residual fraction is supplied by recycling to the stage of separation into fractions after being mixed with raw material. The invention also refers to versions of the method.

EFFECT: higher quality and extraction degree of light hydrocarbons of up to 95%.

16 cl, 5 dwg, 9 tbl, 10 ex

FIELD: oil and gas industry.

SUBSTANCE: invention refers to dehydration device for oil product running in a main pipeline by water drop evaporation. Device includes electromagnetic field power source connected to electromagnetic field power input element for controlled medium and additionally features heated pipeline section with a first and second radio transparent dielectric manholes, thermocouple connected to external surface of heated pipeline section, and temperature logger, so that thermocouple output is connected to temperature logger input.

EFFECT: simplified process of oil product dehydration.

1 dwg

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