Fischer-tropsch synthesis method

FIELD: chemistry.

SUBSTANCE: described is a Fischer-Tropsch synthesis method where: raw gas containing CO and H2, obtained from coal gasification, is desulphurised and then fed as starting gas into a Fischer-Tropsch synthesis apparatus (3) in which hydrocarbons are formed via catalytic reactions from carbon monoxide and hydrogen, wherein the hydrocarbons are removed in form of liquid products (4), a gas stream containing CO and CO2, coming out of the Fischer-Tropsch synthesis apparatus (3) is compressed and fed into a conversion area (6) in which CO is converted with steam to H2 and CO2 and gas coming out of the conversion area (6) after purification (9, 14), from which CO2 and/or other components except H2 are removed, is fed back as gas with high content of H2 together with the desulphurised starting gas into the Fischer-Tropsch synthesis apparatus (3), characterised by that a partial stream (8) of the desulphurised starting gas is removed and fed before a compressor (5) into a loop with a circulation gas stream and that in the gas stream fed into the Fischer-Tropsch synthesis apparatus (3), molar ratio of H2 to CO is set at least equal to 1.5:1. Also described is an installation for carrying out said method, said installation comprising: a Fischer-Tropsch synthesis apparatus (3) with a reactor and an apparatus for separating liquid products, a pre-switched on apparatus (2) for desulphuration of raw gas containing CO and H2, which is formed during coal gasification (1), an apparatus for returning the gas stream coming from the Fischer-Tropsch synthesis apparatus (3) into the desulphurised starting gas, fed into the Fischer-Tropsch synthesis apparatus (3), wherein the apparatus for returning the gas stream has a compressor (5) which operates on steam from a converter (6) for converting CO to H2 and CO2 and an apparatus (9, 14) for removing CO2 from the circulating gas stream, characterised by that the apparatus for returning the gas stream is linked to with a main line for feeding desulphurised starting gas through a branching line (8), wherein the branching line (8) is connected before the compressor (5) in the direction of flow with the returning apparatus, and that in the gas stream fed into the Fischer-Tropsch synthesis apparatus (3), molar ratio of H2 to CO can be at least 1.5:1.

EFFECT: high output of the product without considerably increasing the cost of the equipment.

10 cl, 2 dwg

 

The technical field to which the invention relates.

The invention relates to a method for making the Fischer-Tropsch synthesis.

The level of technology

Method for making Fischer-Tropsch synthesis, used for obtaining hydrocarbons, known for many decades and are described, for example, in the Encyclopedia of technical chemistry Ullman (Ullmanns Encyklopädie der technischen Chemie), 4th edition, 14, 329 et seq. ed. Chemie. gainham, 1977 In this way the raw gas, which in most cases serves as synthesis gas produced by gasification of coal and composed after partial oxidation of coking coal mainly of carbon monoxide (CO) and hydrogen (H2transform the result of heterogeneous catalysis in liquid hydrocarbons. Along with the residual gas after the Fischer-Tropsch synthesis are formed in the form of liquid products, in particular, aliphatic compounds and olefins. On the background of continuous appreciation of refined petroleum products in recent years has again increased the value of the Fischer-Tropsch synthesis.

In currently operating plants with a device for Fischer-Tropsch synthesis using mainly of iron-containing catalysts in the reactor of this device it is necessary to provide for optimum output gas composition with a molar ratio of H2and equal to about 2:1. For Otsego use contained in the source gas components CO and H 2the part produced by the Fischer-Tropsch synthesis gas is compressed and returned into the flow of the source gas. Ratio when returning chosen so that recycled up to twice the amount of the source gas. The ratio of return limit taking into account the fact that when you return the proportion of inert gases such as nitrogen, argon and carbon dioxide (CO2sequence increases, resulting in additional return becomes uneconomic, In particular, are disproportionately increases the concentration of CO2in the process gas as during Fischer-Tropsch synthesis part used WITH turns in CO2. This limits the output of the used raw gas to the ratios of return of less than 2.5, and the remaining gas, which constantly contains CO and H2to eliminate them from the process.

The molar ratio of H2and in obtained by coal gasification synthesis gas is roughly 1:3, and therefore in principle not suitable for direct injection into the reactor for Fischer-Tropsch synthesis. Therefore, based on the design of modern equipment partial stream of raw gas is cleaned before it is fed into the device for Fischer-Tropsch synthesis, in this pre-treatment process gas is carried out essentially at the site about what esserebene and a plot of CO conversion. However distinguish between sulfur conversion (Sour-Shift) and obessilenno conversion-Sweet-Shift). In both cases, the molar ratio of H2and CO in the process gas is due to the fact that the shares contained CO react with water vapor and form H2and CO2.

Since the implementation of the method, among other things, to provide the required power of the compressor power consumption is relatively high, for improving the energy balance usually send a partial flow of the residual gas obtained by Fischer-Tropsch synthesis, the site energy recovery. Here, through one or more gas turbines in combination with one or more generators generating electrical current, which is again fed into the plant during its operation.

Against this background, the object of the invention is to provide a method that increases the output of the used gas produced during the gasification of coal, without substantial increase hardware design in comparison with the prior art.

Disclosure of inventions

The subject of the invention and the solution of the stated problem is the method according to paragraph 1 of the claims. In the method according to the invention the crude gas containing CO and H2obtained during coal gasification, bassereau and then as ishodnoj the gas is sent directly to the device for Fischer-Tropsch synthesis, in which the catalytic reactions of carbon oxides and hydrogen is produced hydrocarbons. The hydrocarbons separated as a liquid product. The gas stream containing CO and CO2coming out of the device for Fischer-Tropsch synthesis, compress and served on a plot of conversion, which make use of water vapor in the H2and CO2. Coming from the site of conversion of the gas, after its purification from CO2and/or other components except for the H2in a gas with high hydrogen content are sent together with besseringen source gas into the device for Fischer-Tropsch synthesis. When this proved to be optimal, resulting in a direct feed obeserving raw gas costs for desulfurization reduced, as have obeserving only unconverted gas. In addition, the content of CO in the process gas at the entrance to the site conversion is in process because less than 20%. Therefore, it is enough to equip a plot of conversion of only one reactor. In traditional methods, the share of CO at the entrance to the site conversion rate is over 50%, due to what is required for the conversion of the second reactor and the heat exchanger.

If the proportion of hydrogen contained in the exhaust gas back, not sufficient to ensure the desired composition of the source gas for the synthesis of Fischer-Tropsch is, according to a variant implementation of the method according to paragraph 2 of the claims may be given a partial flow obeserving source gas and submitted to the compressor in circuit with the circulating gas stream. Therefore it is possible to increase the share of H2in the gas stream fed to the reactor for Fischer-Tropsch synthesis.

In this gas stream molar ratio of H2:CO is set to not less than 1.5:1. Taking into account the yield of the product in the Fischer-Tropsch synthesis, the preferred ratio is 2:1.

When cleaning gas, there are different ways to remove CO2of the exhaust gas. Purge gas flow coming from the site of conversion, may consist of a single rinsing gas. This method according to the invention provides a higher yield of the crude gas, as obtained in the Fischer-Tropsch synthesis CO2almost completely removed from the regenerated gas obtained by Fischer-Tropsch synthesis, resulting in the gas flow in the circuit is reduced. In comparison with the existing technological concepts this provides greater enrichment process gas components inert gas, which subsequently leads to the fact that the concentration of CO and H2exhaust from the Fischer-Tropsch synthesis residual gas is significantly lower than under the existing concepts.

The agreement is but another version of the method is provided, so from the output of the device for Fischer-Tropsch synthesis gas stream was given a partial stream, which should prevent too great enrichment of light hydrocarbons and inert gas components. Allocated partial flow is supplied into the gas turbine for energy recovery.

The result provided by the invention is the location of technological areas or increases the product yield in the synthesis of Fischer-Tropsch reactor at the same flow of the source gas, or the same product of the Fischer-Tropsch synthesis can be reduced dimensions of the reactor for Fischer-Tropsch synthesis, which leads ultimately to cost reduction. Reducing the size of the reactor has the effect of reducing the flow of recycled gas and the reduced size of the compressor.

An alternative embodiment of the method according to the invention is that the cleaning coming from the site of the conversion of the gas stream is applied adsorption with a variable pressure on the discharge side is formed essentially pure hydrogen enrichment which is undesirable components is negligible and therefore does not require an additional exhaust flow. Obtained almost pure hydrogen is mixed with the source gas and is directed to a device for synthesis. Then at a lower level, the e pressure formed gas mixture, used to generate steam in the HRSG. Resulting steam is supplied to the regeneration of energy in the steam turbine. Thus, along with the costly gas washing, eliminating the need and use of one or more of the cost of gas turbines used in traditional ways. The current generation steam turbine placed in front of her recovery boiler and steam generator is an additional advantage, whereby in the event of a failure of gasification, coal can be ensured with high reliability of the electricity generated on site energy recovery, through the use of an alternative fuel. In addition, with this embodiment of the method without direct formation of residual gas by the Fischer-Tropsch synthesis eliminates the need for used in traditional ways small installation for adsorption with a variable pressure, intended for the production of hydrogen for hydrogenation of heavy products of the Fischer-Tropsch synthesis. Can also be provided that the gas flow after adsorption with variable pressure compressed and then fed to the gas turbine.

Also the subject of the invention is an installation for performing the Fischer-Tropsch synthesis. Its principal design feature is the presence of the disorder for Fischer-Tropsch synthesis, contains the reactor, a device for separating liquid product and a device for the regeneration of the heavy fractions (Heavy-End recovery). The design of the installation according to the invention also includes an upstream device for desulfurization of crude gas containing CO and H2obtained by the gasification of coal, and the device to return out of a device for Fischer-Tropsch synthesis gas stream fed to the device for Fischer-Tropsch synthesis obessilennyj source gas. Return the device has to return the gas stream by a compressor vapour, a Converter for converting CO in H2and CO2and device for removal of CO2from circulating through the office of the gas stream.

According to the optimal variant of the installation according to the invention the device for returning the gas flow connected to junction with highway route for transporting obeserving source gas, with a branch line connected to the compressor in the flow direction to return the device. For example, when starting the installation it allows you to send a small partial stream obeserving raw gas directly to the site of the conversion as long as there is sufficient gas obtained by Fischer-Tropsch synthesis.

According to yet about the final variant of the installation according to the invention is provided, the device for removal of CO2contained scrubber, the scrubber can work on the choice of the physical solvent. In a preferred embodiment of the installation device for the removal of CO2contains alternately operating the adsorber for adsorption with variable pressure. This may be provided to adsorption with variable pressure was preceded by washing the gas, resulting in the separation of CO2and his way.

Below the invention is explained by using the drawings depicted on them; the only example of an execution.

Brief description of drawings

Figure 1 - flow chart with irrigation CO2,

figure 2 - flow chart with adsorber for adsorption with variable pressure.

The implementation of the invention

In the schematically shown in the drawing method according to the invention provides, in principle, to the crude gas 1 containing CO and H2obtained by gasification of coal, were first subjected to desulfurization in the device 2 for desulphurization and then as a source gas with a ratio of H2:CO is not less than 1.5:1 was fed to the device 3 for Fischer-Tropsch synthesis, in which through catalytic reactions of hydrocarbons are formed, separated in the form of liquid products. The gas stream containing CO and CO2the output is ASCII from the unit 3 for Fischer-Tropsch synthesis, is compressed in the compressor 5 and is then routed to the Converter 6, in which CO is converted to water vapor by way obessilenno conversion (Sweet-Shift) in N2and CO2. Hence, the gas flow supplied to a gas cleaning, which removes CO2. Plot of gas purification process gas with a high content of H2together with obessional source gas is discharged in a setting of 3 for the Fischer-Tropsch synthesis. In addition, it is shown in the drawing method according to the invention, a partial stream obeserving source gas branch line 8 with the valve 7 is given and before the compressor 5 is supplied to the circuit with the circulating gas stream.

In the schematically depicted in figure 1 method cleaning coming from the site of the conversion gas is produced only in the scrubber 9. CO2removed from the process in the form of exhaust gas 10. From the output of the device 3 for Fischer-Tropsch synthesis gas stream is separated partial stream and sent for energy recovery in the gas turbine 11 is connected to the generator module 12. Before this gas turbine can be placed under option installation device for the regeneration of the heavy fractions. Residual gas in the regeneration of energy is given in the form of process gas 13.

From the image in figure 2 we can conclude that clear the gas stream, coming with section 6 of the conversion consists of adsorption with a variable pressure on the discharge side of the adsorber 14 is formed essentially pure hydrogen, which is mixed with the source gas and return to the device 3 for Fischer-Tropsch synthesis. At this lower pressure is formed gas mixture, which is used to produce steam in the HRSG, resulting in a steam turbine to generate electricity, is connected to the generator module 12. Spent process gas 13 is diverted from the site energy recovery.

1. Method for making Fischer-Tropsch synthesis, in which:
- the crude gas containing CO and H2obtained during coal gasification, bassereau and then as the source gas fed into the device (3) for Fischer-Tropsch synthesis, in which through catalytic reactions of carbon monoxide and hydrogen and hydrocarbons are formed, while
- hydrocarbons, put up in the form of liquid products (4),
- gas stream containing CO and CO2coming from the device (3) for Fischer-Tropsch synthesis, compress and serves on the plot (6) conversion, which CO turn the water vapor in the H2and CO2and
- coming from the area (6) conversion after treatment (9, 14) gas, from which you have removed CO2and/or other components in addition to the H2that is mainly what about as a gas with a high content of H 2together with besseringen source gas into the device (3) for Fischer-Tropsch synthesis,
characterized in that a partial stream (8) obeserving source gas and assign served before the compressor (5) in circuit with the circulating gas stream and that in the gas stream fed to the device (3) for Fischer-Tropsch synthesis, ask the molar ratio of H2and CO, of not less than 1.5:1.

2. The method according to claim 1, characterized in that the cleaning coming from the site of the conversion of a gas stream consists of washing (9) gas.

3. The method according to claim 2, characterized in that the gas stream exiting the device (3) for Fischer-Tropsch synthesis, assign partial stream and serves for the regeneration of energy in the gas turbine (11).

4. The method according to claim 1, characterized in that the cleaning coming from the site of the conversion of a gas stream used adsorption (14) with a variable pressure, and on the discharge side is formed essentially pure hydrogen, which is mixed with the source gas and taken back to the device (3) for Fischer-Tropsch synthesis, while at a lower pressure level is formed, the gas mixture used to produce steam in the HRSG.

5. The method according to claim 4, characterized in that comes after the adsorption of (14) with a variable pressure gas stream is compressed and then sent to the gas turbine (11).

6. At the plant for implementing the method according to claim 1, contains:
device (3) for Fischer-Tropsch synthesis reactor and a device for separating liquid products,
- upstream device (2) for desulfurization formed during gasification (1) coal crude gas with a content of CO and H2,
device to return coming from the device (3) for Fischer-Tropsch synthesis gas stream in obessilennyj source gas is sent to the device (3) for Fischer-Tropsch synthesis,
- the device to return the gas stream contains a compressor (5)working vapour Converter (6) for the conversion of CO in H2and CO2and the device (9, 14) for removal of CO2from circulating through the gas flow path,
characterized in that the device for returning the gas flow indicated by line for supplying obeserving the source gas through the branch line (8), with a branch line (8) connected to the compressor (5) in the direction of flow of the return device, and that in the gas stream fed to the device (3) for Fischer-Tropsch synthesis, can be specified molar ratio of H2and CO, of not less than 1.5:1.

7. Installation according to claim 6, characterized in that the device for removing CO2contains scrubber (9).

8. Installation according to claim 7, characterized in that the scrubber (9) works on the physical will dissolve the Le.

9. Installation according to claim 6, characterized in that the device for removing CO2contains adsorber (14) periodic action for adsorption with variable pressure.

10. Installation according to claim 9, characterized in that the front section of the adsorption with a variable pressure is the scrubber, which provide the Department and the outlet CO2.



 

Same patents:

FIELD: chemistry.

SUBSTANCE: invention relates to methods of obtaining catalyst precursor, catalyst of Fischer-Tropsch synthesis and to method of Fischer-Tropsch synthesis itself. Method of obtaining precursor of catalyst of Fischer-Tropsch synthesis includes stages at which: (i) Fe (II) carboxilate solution is used, (ii) if molar ratio of carboxyl and carboxylate groups, which come into reaction or are capable of coming into reaction with iron, and Fe (II) in solution, used at stage (i), does not constitute, at least, 3:1, source of carboxyl or carboxilate group is added into the solution, for said molar ratio to constitute, at least, 3:1, until Fe (II) carboxylate oxidation is over at the following stage (iii), (iii) Fe (II) carboxylate is processed by oxidant to convert it into Fe (III) carboxilate solution in conditions, which exclude such oxidation simultaneously with dissolution of Fe(0), (iv) hydrolysis of Fe(III) carboxylate, obtained at stage (iii) and precipitation of one or several products of F(III) hydrolysis are carried out, (v) one or several products of hydrolysis, obtained at stage (iv) are reduced, and (vi) source of activator in form of soluble salt of transition metal and chemical activator in form of soluble salt of alkaline metal or alkaline-earth metal are added in the process pr after realisation of any of preceding stages to obtain precursor of catalyst of Fischer-Tropsch synthesis.

EFFECT: achievement of complete dissolution of Fe(0) in acidic solution, source of activator can be introduced before Fe(III) carboxylate hydrolysis.

15 cl, 7 dwg, 1 tbl, 14 ex

FIELD: chemistry.

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17 cl, 19 tbl, 8 ex, 7 dwg

FIELD: chemistry.

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Catalysts // 2497590

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15 cl, 9 dwg, 4 ex

FIELD: chemistry.

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30 cl, 1 dwg

FIELD: chemistry.

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11 cl, 4 dwg

FIELD: chemistry.

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10 cl, 1 ex, 5 dwg

FIELD: chemistry.

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9 cl, 1 dwg, 5 tbl, 3 ex

FIELD: chemistry.

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5 cl, 2 dwg, 1 tbl, 9 ex

FIELD: chemistry.

SUBSTANCE: present invention relates to a catalyst suitable for use in catalysis of a Fischer-Tropsch reaction. Described is a catalyst which contains cobalt metal deposited on zinc oxide and zirconium (IV) oxide in amount ranging from 0.5 to 2.5 wt % with respect to the metal, per mass of the calcined catalyst, wherein the volume-average particle size of the catalyst ranges from 2 mcm to less than 75 mcm. Described is use of the catalyst in a Fischer-Tropsch method or when hydrogenating functional groups and a Fischer-Tropsch method.

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16 cl, 1 tbl, 6 ex

FIELD: chemistry.

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15 cl, 7 dwg, 1 tbl, 14 ex

FIELD: chemistry.

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EFFECT: decreased amount of used nitrate-anions and ammonium, ruled out use of zinc nitrate.

11 cl, 3 ex

Catalysts // 2497590

FIELD: chemistry.

SUBSTANCE: invention relates to catalyst regeneration. Method of regeneration of waste powder-like, paraffin-containing catalyst of Fischer-Tropsch synthesis based on cobalt is described, where claimed method includes the following sequential processing: (i) de-waxing processing, (ii) oxidative processing with regulation of work temperature by discharge of heat from layer of catalyst particles with application of cooling device, which contains device for providing passage of cooling medium and cooling medium, passing through said device of passage providing, which ensure in such way heat conductive surfaces, located in and/or around catalyst layer, with obtaining oxidised particles of catalyst, and (iii) reduction processing. Re-application of regenerative catalyst is described.

EFFECT: increase of process efficiency.

15 cl, 9 dwg, 4 ex

FIELD: chemistry.

SUBSTANCE: invention relates to an integrated method, in which pure iron carbonyl powder is prepared by decomposition of pure iron pentacarbonyl in a plant A, and carbon monoxide (CO) liberated during decomposition of iron pentacarbonyl is used in plant A for further preparation of iron carbonyl powder from iron or is fed into a connected plant B for preparation of synthesis gas or is fed into a connected plant C for preparation of hydrocarbons from synthesis gas. The iron carbonyl powder prepared in plant A is used as catalyst or catalyst component in the connected plant C for preparation of hydrocarbons from synthesis gas from plant B, and spent catalyst obtained in plant C is used as additional iron source for preparation iron carbonyl powder in plant A.

EFFECT: use of the disclosed method enables to avoid wastes such as salts or waste water.

11 cl, 4 dwg

FIELD: chemistry.

SUBSTANCE: natural gas substitute is obtained from fresh crude synthesis gas 11 in a methanation section 10, having at least a first adiabatic reactor 101 and at least an additional adiabatic reactor 102-104, connected in series. A gas stream collected from the previous reactor of the methanation section is fed into each additional reactor 102-104, and at least a portion 22 of the reaction gas is recycled as input gas into at least one of said reactors. Fresh crude synthesis gas 11 is concurrently fed into reactors 101-104 and gas recycling is carried out by collecting a portion 22 of the reaction gas stream 20 from the first reactor 101 and the portion 22 of the gas is used as recycling gas to dilute the stream 12 of the fresh gas fed into the first reactor 101, to obtain a stream 18 of diluted gas at the input of the first reactor.

EFFECT: invention increases efficiency by reducing recycled gas consumption.

12 cl

FIELD: chemistry.

SUBSTANCE: invention relates to catalysts. Described are methods of producing a cobalt Fischer-Tropsch synthesis catalyst, which involve preparation of a granular support from starting material - oxides of group III and IV metals, mixing the latter with modifying additives, followed by calcining, saturation with cobalt compounds, followed by calcining and activation of the catalyst in a current of a hydrogen-containing gas during Fischer-Tropsch synthesis.

EFFECT: low power consumption of the Fischer-Tropsch synthesis process.

2 cl, 11 tbl, 18 ex

FIELD: chemistry.

SUBSTANCE: method of producing a Fischer-Tropsch synthesis catalyst, involving calcining material: nitrate, oxonitrate, hydroxide or oxohydroxide of aluminium, zirconium, silicon or titanium, at temperature of 400-800°C, grinding particles to size of not more than 0.5 mm, granulating, calcining the granules at temperature of 400-800°C, saturating with a solution of cobalt compounds in amount of 20-30 wt % and promoters selected from: Re, Ru, followed by calcination at temperature of 270-450°C, grinding the granules to particle size of not more than 0.5 mm, mixing with a zeolite selected from: ZSM-5, Y, β, content of which ranges from 30 to 70% of the mass of the ready catalyst, granulating the obtained mixture together with boehmite, the mass of which ranges from 10 to 20% of the mass of the mixture, and calcining at temperature of 400-600°C, ion exchange of the granules with soluble compounds of palladium or Fe, Co, Ni, with content thereof of 0.5-8.0% of the mass of the ready catalyst, in a suspension of granules and a solution of said metal compounds at temperature of 60-80°C for 1-3 hours, drying the suspension at temperature of 80-150°C and calcining the residue at temperature of 300-500°C, activating the catalyst with hydrogen at 250-500°C in a fixed bed Fischer-Tropsch synthesis reactor while passing hydrogen with volume rate of 3000 h-1 at atmospheric pressure.

EFFECT: low cost of the catalyst, high stability of the catalyst.

1 tbl, 48 ex

FIELD: chemistry.

SUBSTANCE: invention relates to catalysts of obtaining aliphatic hydrocarbons from carbon oxide and hydrogen and their application. Catalyst for obtaining aliphatic hydrocarbons from carbon oxide and hydrogen, which contains nano-size catalytically active particles of metal cobalt or iron, is described, and it is obtained by pyrolysis of macromolecules of polyacrylonitrile (PAN) in presence of iron and cobalt salts in inert atmosphere under influence of IR-irradiation at temperature 300-700°C after preliminary annealing in air. Method of obtaining aliphatic hydrocarbons from carbon oxide and hydrogen at increased temperature and pressure in presence of upper described catalyst is described.

EFFECT: simplification of catalyst obtaining and reduction of process cost.

5 cl, 2 dwg, 1 tbl, 9 ex

FIELD: chemistry.

SUBSTANCE: present invention relates to a catalyst suitable for use in catalysis of a Fischer-Tropsch reaction. Described is a catalyst which contains cobalt metal deposited on zinc oxide and zirconium (IV) oxide in amount ranging from 0.5 to 2.5 wt % with respect to the metal, per mass of the calcined catalyst, wherein the volume-average particle size of the catalyst ranges from 2 mcm to less than 75 mcm. Described is use of the catalyst in a Fischer-Tropsch method or when hydrogenating functional groups and a Fischer-Tropsch method.

EFFECT: improved mechanical stability of the catalyst with balance between catalyst activity properties and separation thereof from the reaction mixture by filtering.

16 cl, 1 tbl, 6 ex

FIELD: chemistry.

SUBSTANCE: invention relates to method of realisation of Fischer-Tropsch synthesis on conversion of H2 and CO-containing reaction mixture into product, containing at least one aliphatic hydrocarbon, which has at least 5 carbon atoms. Method includes first running reaction mixture through micro-channel reactor, which contain contacting Fischer-Tropsch catalyst, which contains Co, applied on carrier, in amount at least 25 wt %. After that, heat transfer from working micro-channels to heat exchanger is carried out, after which obtained product is discharged from micro-channel reactor with ensuring volume rate of flow of reaction mixture and product through working micro-channels at least 1000 h-1 and as a result obtained are at least 0.5 grams of aliphatic hydrocarbon, having at least 5 carbon atoms, per gram of catalyst per hour, with methane selectivity in product lower than approximately 25%.

EFFECT: application of claimed method will make it possible to obtain high levels of CO conversion and high levels of desired product selectivity.

79 cl, 4 ex, 18 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing hydrocarbons, hydrogen and oxygen using carbon dioxide and water. According to the method, water is saturated with carbon dioxide to obtain carbonated water; the carbonated water is passed through at least one reactor having a catalyst to conduct the reaction: nCO2+[4n+2(k+1)]H2O=CnH2n+2+[3n+2k+1]H2+[3n+k+1]O2, where k is an integer greater than or equal to 0, n is an integer greater than or equal to 1, to obtain hydrocarbons, hydrogen and oxygen, further fed into at least one separator; reaction products from the source carbonated water are separated in at least one separator by separating the gas phase and the liquid phase, wherein hydrocarbons are separated from the liquid phase and the gas phase, and hydrogen and oxygen are further separated from the gas phase.

EFFECT: method enables to simultaneously obtain hydrocarbons, hydrogen and oxygen while reducing power consumption while reducing environmentally hazardous products.

10 cl, 1 ex, 5 dwg

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