Method for production of methanol and hydrocarbons of gasoline range using synthetic gas

FIELD: chemistry.

SUBSTANCE: method is carried out in cascade of three and more flow-through catalytic reactors (FCR). Synthetic gas (SG) with initial ratio hydrogen-carbon monoxide 1.5≤H2:CO≤2 is passed successively through the first FCRs with catalyst for methanol synthesis with release of methanol as a target product; then the residual SG flow after methanol synthesis with ratio hydrogen- carbon monoxide H2:CO≥1 is directed to FCR with bifunctional catalyst for synthesis of dimethyl ester (DME) and obtained DME is supplied to FCR for synthesis of hydrocarbons of gasoline range (HGR) with subsequent isolation of HGR and waste products sent for disposal.

EFFECT: method allows to increase the total transformation rate of carbon monoxide and enhance the target product output.

8 cl, 1 dwg, 4 tbl, 6 ex

 



 

Same patents:

FIELD: chemistry.

SUBSTANCE: method of producing liquid hydrocarbon mixtures is carried out via hydroconversion of lignocellulose biomass in a solvent medium in the presence of a dispersed catalyst precursor. The method includes drying the biomass; grinding the biomass; preparing a paste from the ground biomass, solvent and dispersed catalyst precursor; hydroconversion of the prepared paste; separating the obtained products in a system of separators; the method is characterised by that the solvent used is an organic solvent having viscosity of 0.5-2.5 Pa·s at 60-90°C, which contains 2-5.5 wt % sulphur and 5-25 wt % polycyclic aromatic hydrocarbons and/or derivatives thereof, and grinding of the biomass and preparation of said paste is carried out via dispersion with mechanical activation of the biomass in a solvent medium containing a catalyst precursor, wherein the prepared paste is first heated in an inert atmosphere to temperature of 330-380°C and pressure of 0.2-0.5 MPa until removal of the basic amount of oxygen in the biomass in the form of CO, CO2 and H2O, followed by hydroconversion.

EFFECT: high output of liquid products of hydroconversion of the biomass, higher conversion of the biomass and simpler process.

10 cl, 10 tbl, 2 dwg, 7 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a method of processing tall oil resin. The method of processing tall oil resin, which contains sterol alcohols, and, possibly, wood alcohols of fatty acids and resin acids, the source of which is tall oil, is characterised by the fact that, at least, a part of the fatty acids and resin acids is released from sterol ethers and ethers of wood alcohols and converted into lower alkyl ethers; alkyl ethers, obtained in he said way, are extracted by evaporation from resin, then condensed, with the further hydration of the obtained condensate. The product, obtained by the claimed method and the application of the method for fuel production are also claimed.

EFFECT: application of tall oil resin, which usually represents a waste product, for obtaining fuel or a fuel component.

17 cl, 1 dwg

FIELD: chemistry.

SUBSTANCE: claimed invention relates to a method of obtaining olefins, including a) steam cracking of an ethane-including raw material in the zone of cracking and under conditions of cracking with obtaining a flow discharged from the zone of cracking, which includes, at least, olefins and hydrogen; b) conversion of the oxygenated raw material in the zone of conversion of oxygenate to olefins in the presence of a catalyst with obtaining a flow, consisting of, at least, olefins and hydrogen, discharged from the oxygenate-to-olefins (OTO) flow; c) combination of, at least, a part of the flow, discharged from the zone of cracking and a part of the flow, discharged from the OTO zone with obtaining a combined output flow; and d) separation of hydrogen from the combined output flow, with the formation of, at least, a part of the oxygenated raw material due to the supply of hydrogen, obtained at stage d), and the raw material, containing carbon oxide and/or carbon dioxide, into the zone of oxygenates synthesis and obtaining oxygenates. The invention also relates to a combined system for the claimed method realisation.

EFFECT: claimed invention makes it possible to obtain target products by the improved combined method of ethane cracking and OTO technology.

8 cl, 1 dwg, 5 tbl, 1 ex

FIELD: chemistry.

SUBSTANCE: invention relates to the catalytic conversion of a renewable raw material - products of the biomass fermentation (ethanol, fusel alcohols) and their mixtures with vegetable oil into an alkane-aromatic fraction C3-C11+, which can be used for obtaining fuel components. The method of obtaining alkane and aromatic hydrocarbons from the products of the biomass processing for obtaining the hydrocarbon fuel components includes passing the products of the biomass processing through a layer of a preliminarily regenerated zeolite ZSM-based catalyst, containing Pd and Zn, in an inert atmosphere at an increased temperature. The method is characterised by the fact that as the catalyst used is the Pd-Zn/ZSM/Al2O3 catalyst of the general formula of 0.6 wt % Pd-1 Zn/Al2O3/ZSM, with the products of the biomass processing, which contain a mixture of organic fermentation products or fusel alcohols, being passed through the catalyst layer at a temperature of 280-500°C and volume rate of 0.3-6 h-1.

EFFECT: extension of the raw material base and method for obtaining alkane and aromatic hydrocarbons.

5 cl, 6 tbl, 26 ex

FIELD: chemistry.

SUBSTANCE: described is catalyst for single-stage manufacturing of components for jet and Diesel fuels from oil and fat raw material, containing platinum or palladium, fixed on the surface of porous carrier, represented by borate-containing aluminium oxide, with the following component ratio, wt %: Pt or Pd 0,10-0.50; B2O3 5-25; Al2O3 - the remaining part. Catalyst can be prepared by granulation of mixture of aluminium oxide hydrate of pseudoboehmite structure with orthoboric acid with the following drying of granules at 120°C and annealing at 550-700°C for 16 h. Granules are soaked with solutions of hexachloroplatinic acid or palladium chloride, subjected to drying at 120°C and annealing at 500°C. Method of single-stage manufacturing of components for jet and Diesel fuels with improved low-temperature properties from oil and fat raw material in presence of claimed catalyst includes passing mixture of hydrogen and oil and fat raw material through immobile layer of catalyst at temperature 380°C, pressure 4.0 MPa, mass rate of raw material supply 1 h-1 and with volume ratio hydrogen:raw material, equal 1300.

EFFECT: increased efficiency of single-stage manufacturing of components for jet and Diesel fuels with improved low-temperature properties from oil and fat raw material due to simplification of catalyst composition, method of its preparation and reduction of catalyst cost.

3 cl, 4 tbl, 4 ex

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

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: oil and gas industry.

SUBSTANCE: invention refers to oil and gas industry, namely to utilisation and processing methods for associated and natural gas with high methane homologue content to obtain oil products. Processing method for natural and associated gas with high content of heavy methane homologues by selective oxidation of hydrocarbon gas and further carbonylation of products obtained involves mixing of hydrocarbon gas with oxygen or oxygen-containing gas at molar ratio of heavy carbon components to oxygen 5÷0.2:1, and selective oxidation of heavy components at air or near-air pressure and temperature of 500-800°C, and products obtained are processed in the presence of carbonylation catalysts containing compounds of VIII group metals and phosphine (arsinic) ligands, at 80-120°C and air pressure to obtain liquid products such as aldehydes, carbonic acids, diethyl ketone, polyketones, and dry fuel gas saturated with methane and purified from heavy components.

EFFECT: solution to the problem of associated oil gas utilisation, common to all oil companies.

FIELD: chemistry.

SUBSTANCE: invention relates to a methanol synthesis method, which includes the following steps: (i) conducting a reaction, in a reaction loop, of a process gas containing hydrogen, carbon dioxide and carbon monoxide over a catalyst to obtain a product gas, (ii) condensing methanol, water and secondary oxygenates from the product gas, (iii) returning unreacted gases into the reaction loop, where the catalyst includes pellets obtained by pressing from a reclaimed and passivated powdered catalyst, where said powder contains copper in the range of 15-70 wt %, zinc oxide, wherein the weight ratio Cu:Zn with respect to the oxide is in the range of 2:1 to 3.5:1, aluminium oxide in the range of 5-60 wt %, and optionally one or more oxide promoting compounds selected from Mg, Cr, Mn, V, Ti, Zr, Ta, Mo, W, Si and rare-earth elements, in the range of 0.01-10 wt %, wherein the catalyst is obtained by carrying out steps which include: (i) preparing, in an aqueous medium, a composition containing a homogeneous mixture of separate particles of copper, zinc, aluminium and optionally one or more promoting compounds of metals selected from Mg, Cr, Mn, V, Ti, Zr, Ta, Mo, W, Si and rare-earth elements, (ii) separating and drying the composition to form a catalyst precursor, (iii) exposing the dried catalyst precursor composition to reducing conditions so that copper compounds contained therein are reduced to copper, (iv) passivating the surface of the reduced copper, and (v) forming a reduced and passivated composition, where, before reducing the copper compounds, the homogeneous mixture is treated at the drying step at temperature in the range of 180-240°C.

EFFECT: when carrying out the disclosed method, total content of secondary oxygenates in the condensate is not more than 500 ppm.

12 cl, 7 tbl, 5 ex

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 is referred to conversion process of associated and natural gases with high content of heavy methane homologs by direct partial oxidation of hydrocarbon gas and further carbonylation of the received products. At that hydrocarbons gas is mixed up with oxygen or oxygen-containing gas with mole ratio of hydrocarbon in heavy components: oxygen of 10-1:1 and selective oxidation of heavy components is made at temperature of 350-420°C and pressure of 10-40 bar and the received products are subjected to processing in presence of carbonylation catalysts with production of liquid products of carboxylic acids and their ethers and dry fuel gas purified from heavy components and enriched with methane.

EFFECT: method is the simplest and the most economically feasible for processing of associated oil gas and natural gas with high content of methane homologs with production of dry gas and a range of valuable liquid products.

3 ex

FIELD: chemistry.

SUBSTANCE: claimed invention relates to method of obtaining methanol, which includes the following stages: a) conversion of hydrocarbon raw material at the stage of conversion process to obtain fresh synthesis-gas, which contains carbon oxides and hydrogen; b) reaction between components of fresh synthesis-gas in the circuit of methanol synthesis to obtain raw methanol; c) processing raw methanol to obtain methanol with required purity degree, characterised by the fact that it additionally includes the following stages: d) trapping at least one flow with high content of CO2 in the process of raw methanol processing and e) recirculation of said at least one flow with high content of CO2 in form of input flow for conversion process. Invention also relates to installation for claimed method realisation and to method of reconstructing installation for obtaining methanol.

EFFECT: claimed inventions make it possible to correct stoichiometric factor of synthesis gas.

15 cl, 3 dwg, 6 tbl, 1 ex

FIELD: chemistry.

SUBSTANCE: invention can be used in the chemical industry. A method of the combined methanol and ammonia production from an initial raw material is realised by means of the following stages. First, synthesis-gas of the methanol production, which contains hydrogen, carbon oxides and nitrogen, is obtained by steam reforming of an initial hydrocarbon raw material at the first stage of reforming and then at the second stage of reforming with air blast. After that, carried out are: catalytic conversion of the synthesis-gas carbon and hydrogen oxides at a single-pass stage of methanol synthesis and the discharge of the methanol-containing output product, and an effluent gas flow, containing nitrogen, hydrogen and non-converted carbon oxides. The non-converted carbon oxides of the gas flow from the preceding stage are removed by hydrogenation to methane at the stage of the catalytic methanation with the formation of synthesis-gas, which has a molar ratio H2:N2, equal 3:1. Ammonia is synthesised by the catalytic conversion of nitrogen and hydrogen, with the discharge of the ammonia-containing product and effluent gas flow, containing hydrogen, nitrogen and methane.

EFFECT: claimed invention provides the creation of a simple and cheap method of the combined production of methanol and ammonia.

7 cl, 1 dwg, 1 tbl

FIELD: oil and gas industry.

SUBSTANCE: invention is related to the method of methanol recovery from gas-vapour mixture at its storage and transhipment and may be used in chemical industry, petrochemical industry, oil and gas producing and processing industries. The method includes extraction of vapours from the gas-vapour mixture in the plant vessel, cooling of the gas-vapour mixture and condensation of vapours in the vapour-condensing unit, condensate return to the vessel and emptying of the vessel. At that cooling of the gas-vapour mixture in the vapour-condensing unit consisting of a vessel for cooled methanol and a packed column installed on it is made to counter-flow interaction of the gas-vapour mixture containing vapours of methanol cooled up to the temperature within the range of minus 25 up to minus 36°C at pressure close to atmosphere pressure when condensed methanol is returned to the vessel for cooled methanol.

EFFECT: method allows increasing quality of storage due to recovery and return of methanol vapours to the vessel.

1 dwg, 1 tbl

FIELD: chemistry.

SUBSTANCE: method is realised by a contact of a feeding flow, enriched with hydrogen and carbon monoxide, with a catalyst of methanol synthesis. The obtained in this way technological flow is cooled, condensed and subjected to separation into a gas phase and a liquid phase with raw methanol. As the feeding flow used is synthesis-gas, obtained by steam gasification of charcoal, representing a product of pyrolysis of preliminarily dried wood wastes. Before the contact of the feeding flow with the catalyst, containing in a mole ratio CuO:ZnO:Cr2O3:MnO:MgO:Al2O3:BaO, equal to 1:0.3:(0.15-0.2):(0.05-0.1):(0.05-0.1):(0.25-0.3):0.05 respectively, its compressing to pressure 3.5-4.5 MPa is performed. After that the flow is supplied into a reactor, where a temperature of 250-300°C is supported due to evaporation of recycled water, released from raw methanol, with steam from recycled water from the reactor being directed to charcoal gasification. Cooling of the technological flow is realised conductively from the feeding flow, and condensation is performed by throttling. After separation the gas phase is divided into two flows, one flow is directed for combustion into a pyrolysis chamber, and the second flow is directed to ejection with a ratio of the gas flow to the feeding flow equal to 10:1, respectively.

EFFECT: invention makes it possible to obtain methanol in a waste-free environmentally friendly way without application of additional energy resources.

1 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to an improved method of producing methanol, dimethyl ether and low-carbon olefin from synthesis gas. The method includes a step of contacting synthesis gas with a catalyst under conditions for converting the synthesis gas into methanol, dimethyl ether, and low-carbon olefins, characterised, wherein the catalyst contains an amorphous alloy consisting of components M-P, M-B or M-B-P, wherein component M represents two or more elements selected from lanthanides and the third, fourth and fifth series of groups IIIA, IVA, VA, IB, IIB, IVB, VB, VIB, VIIB and VIII of the Periodic Table of Elements.

EFFECT: method increases selectivity of the target product by conducting the process in conditions which ensure high conversion of CO and availability of carbon.

16 cl, 3 dwg, 3 tbl, 11 ex

FIELD: chemistry.

SUBSTANCE: invention describes a methanol synthesis method which comprises conversion of hydrocarbon-containing material to obtain synthesis gas (1) containing carbon monoxide and hydrogen and a reaction between components of fresh synthesis gas in a synthesis loop (10) to obtain raw methanol and removing hydrogen-containing purge gas (20) from the synthesis loop. The purge gas is heated by heat recuperation via indirect heat exchange with at least one high-temperature heat source in said method, said heat source being adapted to heat purge gas to temperature not lower than 200°C to obtain a heated purge gas (33), and said heated purge gas, as such, is expanded in a corresponding expander (34), and energy is obtained due to expansion of the purge gas in the expander, wherein said high-temperature heat source used is hot waste gas from the conversion process, wherein the material is converted to fresh synthesis gas (1) or a stream of hot steam. The invention also relates to a methanol synthesis apparatus and a method of reconstructing a methanol synthesis apparatus.

EFFECT: disclosed objects improve overall energy balance of the process.

13 cl, 2 dwg, 2 ex

FIELD: chemistry.

SUBSTANCE: claimed invention relates to method of obtaining methanol, which includes the following stages: a) conversion of hydrocarbon raw material at the stage of conversion process to obtain fresh synthesis-gas, which contains carbon oxides and hydrogen; b) reaction between components of fresh synthesis-gas in the circuit of methanol synthesis to obtain raw methanol; c) processing raw methanol to obtain methanol with required purity degree, characterised by the fact that it additionally includes the following stages: d) trapping at least one flow with high content of CO2 in the process of raw methanol processing and e) recirculation of said at least one flow with high content of CO2 in form of input flow for conversion process. Invention also relates to installation for claimed method realisation and to method of reconstructing installation for obtaining methanol.

EFFECT: claimed inventions make it possible to correct stoichiometric factor of synthesis gas.

15 cl, 3 dwg, 6 tbl, 1 ex

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