EP2077974A2 - Procédé de production d'hydrogène - Google Patents

Procédé de production d'hydrogène

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Publication number
EP2077974A2
EP2077974A2 EP07786444A EP07786444A EP2077974A2 EP 2077974 A2 EP2077974 A2 EP 2077974A2 EP 07786444 A EP07786444 A EP 07786444A EP 07786444 A EP07786444 A EP 07786444A EP 2077974 A2 EP2077974 A2 EP 2077974A2
Authority
EP
European Patent Office
Prior art keywords
sub
gas
vol
claus process
fed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07786444A
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German (de)
English (en)
Inventor
Holger Schlichting
Thomas Tork
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Air Liquide Global E&C Solutions Germany GmbH
Original Assignee
Lurgi GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lurgi GmbH filed Critical Lurgi GmbH
Publication of EP2077974A2 publication Critical patent/EP2077974A2/fr
Withdrawn legal-status Critical Current

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    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
    • C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
    • C01B3/36—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using oxygen or mixtures containing oxygen as gasifying agents
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/02—Preparation of sulfur; Purification
    • C01B17/04—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides
    • C01B17/0404—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by processes comprising a dry catalytic conversion of hydrogen sulfide-containing gases, e.g. the Claus process
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/02—Preparation of sulfur; Purification
    • C01B17/04—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides
    • C01B17/0404—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by processes comprising a dry catalytic conversion of hydrogen sulfide-containing gases, e.g. the Claus process
    • C01B17/0456—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by processes comprising a dry catalytic conversion of hydrogen sulfide-containing gases, e.g. the Claus process the hydrogen sulfide-containing gas being a Claus process tail gas
    • C—CHEMISTRY; METALLURGY
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    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
    • C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
    • C01B3/48—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents followed by reaction of water vapour with carbon monoxide
    • C—CHEMISTRY; METALLURGY
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    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/50—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
    • C01B3/56—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by contacting with solids; Regeneration of used solids
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K1/00—Purifying combustible gases containing carbon monoxide
    • C10K1/002—Removal of contaminants
    • C10K1/003—Removal of contaminants of acid contaminants, e.g. acid gas removal
    • C10K1/004—Sulfur containing contaminants, e.g. hydrogen sulfide
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    • C10K1/00—Purifying combustible gases containing carbon monoxide
    • C10K1/002—Removal of contaminants
    • C10K1/003—Removal of contaminants of acid contaminants, e.g. acid gas removal
    • C10K1/005—Carbon dioxide
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    • C10K1/00—Purifying combustible gases containing carbon monoxide
    • C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
    • C10K1/10—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
    • C10K1/12—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors
    • C10K1/14—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors organic
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    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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    • C10K1/00—Purifying combustible gases containing carbon monoxide
    • C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
    • C10K1/10—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
    • C10K1/12—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors
    • C10K1/14—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors organic
    • C10K1/143—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors organic containing amino groups
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    • C10K1/00—Purifying combustible gases containing carbon monoxide
    • C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
    • C10K1/16—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with non-aqueous liquids
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K1/00—Purifying combustible gases containing carbon monoxide
    • C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
    • C10K1/16—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with non-aqueous liquids
    • C10K1/165—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with non-aqueous liquids at temperatures below zero degrees Celsius
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/30—Sulfur compounds
    • B01D2257/304—Hydrogen sulfide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/50—Carbon oxides
    • B01D2257/504—Carbon dioxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/047—Pressure swing adsorption
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/02—Processes for making hydrogen or synthesis gas
    • C01B2203/025—Processes for making hydrogen or synthesis gas containing a partial oxidation step
    • C01B2203/0255—Processes for making hydrogen or synthesis gas containing a partial oxidation step containing a non-catalytic partial oxidation step
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/02—Processes for making hydrogen or synthesis gas
    • C01B2203/0283—Processes for making hydrogen or synthesis gas containing a CO-shift step, i.e. a water gas shift step
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
    • C01B2203/042—Purification by adsorption on solids
    • C01B2203/043—Regenerative adsorption process in two or more beds, one for adsorption, the other for regeneration
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    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
    • C01B2203/0465—Composition of the impurity
    • C01B2203/047—Composition of the impurity the impurity being carbon monoxide
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
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    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
    • C01B2203/0465—Composition of the impurity
    • C01B2203/0475—Composition of the impurity the impurity being carbon dioxide
    • C—CHEMISTRY; METALLURGY
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    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
    • C01B2203/0465—Composition of the impurity
    • C01B2203/0485—Composition of the impurity the impurity being a sulfur compound
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    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/06—Integration with other chemical processes
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    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/08—Methods of heating or cooling
    • C01B2203/0872—Methods of cooling
    • C01B2203/0877—Methods of cooling by direct injection of fluid
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0913—Carbonaceous raw material
    • C10J2300/093—Coal
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    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0913—Carbonaceous raw material
    • C10J2300/0943—Coke
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0953—Gasifying agents
    • C10J2300/0959—Oxygen
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    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0953—Gasifying agents
    • C10J2300/0973—Water
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    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0983—Additives
    • C10J2300/0989—Hydrocarbons as additives to gasifying agents to improve caloric properties
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/40—Capture or disposal of greenhouse gases of CO2
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2

Definitions

  • the invention relates to a process for the preparation of H 2 from hydrocarbon-containing educts, such as refinery residues, petroleum, natural gas, associated gas, petroleum coke and coal, in which the starting material in a first reaction stage with the addition of oxygen-containing gas and steam at a temperature of 1200 to 1500 ° C and a pressure of 15 to 100 bar abs by non-catalytic partial oxidation autothermal to a main components H 2 and CO and the components CO 2 , H 2 O, CH 4 and traces of H 2 S, COS, C n H m , N 2 and Ar containing raw gas is gasified and the metal ashes contained in the raw gas are removed together with the soot by quenching as molten slag and converted in a second reaction stage, the CO contained in the crude gas with the addition of water vapor to CO 2 and further H 2 ,
  • hydrocarbon-containing educts such as refinery residues, petroleum, natural gas, associated gas, petroleum coke and coal
  • MPG process The multi-purpose gasification process (MPG process) described in the company publication 1700 e / 4.04 / 15 of Lurgi AG, Frankfurt am Main, allows non-catalytic partial oxidation to yield a wide variety of hydrocarbon-containing liquid, gaseous and solid starting materials, such as refinery residues , Petroleum, natural gas, associated gas, chemical waste, coal and petroleum coke according to the reaction equation
  • the gasification temperature is 1200 to 1450 ° C and the gasification pressure 1 to 100 bar abs and 30 to 70 bar abs in the case of predominant production from H 2 .
  • the crude gas obtained also contains the components CO 2 , H 2 O, CH 4 and traces of H 2 S, COS, C n H m , N 2 and Ar.
  • the metal ashes contained in the raw gas are removed from the process along with the carbon black by quenching with water as molten slag.
  • the oxygen carrier is mixed with water vapor fed to the burner of the gasification plant.
  • the crude synthesis gas produced in this way contains as desired components 50 to 80 vol.% H 2 and 10 to 40 vol.% CO 2 and as undesirable components H 2 S 1 CO 1 COS 1 CH 4 and C n H m , the be absorbed by means of cold, loaded with CO 2 methanol as a physical solvent in two stages.
  • the solubilities of the various components in the methanol are very different, whereby a selective deposition of the components at pressures of 20 to 80 bar abs , for example of H 2 S and CO 2 , is possible.
  • the incoming crude synthesis gas is cooled first supplied to the H 2 S absorber and absorbed H 2 S and other sulfur compounds, so that the residual content of sulfur in the synthesis gas is less than 0.1 ppm.
  • the methanol loaded with H 2 S is depressurized to medium pressure and then heated to boiling temperature, so that all absorbed gases are released.
  • pure sulfur is recovered in a Claus process.
  • CO 2 is deposited in the second stage, so that the CO 2 concentration in the gas drops to 10 ppm to 3 vol.%.
  • Rectisol ® process the loaded solvent with CO 2 is expanded to a low pressure and the liberated sulfur-free CO 2 is either vented to the atmosphere or used for instance for the production of urea.
  • Related methods are the so-called.
  • the synthesis gas remaining after the removal of CO 2 and H 2 S is separated using the pressure swing absorption process into a fraction consisting of highly pure H 2 and a small fraction containing the remaining constituents, for example usable as heating gas.
  • the crude synthesis gas formed after the conversion of CO to CO 2 and further H 2 contains almost all the carbon of the feed gas as CO 2 with a content of up to 40% by volume and additionally, depending on the starting material, ⁇ 1% by volume of H 2 S.
  • the selective separation of H 2 S from the crude synthesis gas, without at the same time separating off large amounts of CO 2 requires a relatively large technical outlay.
  • the selective separation is necessary for the further processing of the H 2 S-rich phase in the Claus process.
  • the final purification of the remaining H 2 takes place after the pressure swing absorption process.
  • the object of the present invention in the production of H 2 from hydrocarbon-containing educts according to the method described above, to the scrubbing of the crude synthesis gas leaving the second reaction stage by means of physical or chemical solvents for the removal of CO 2 and H 2 S without.
  • the solution to this problem is that the exiting the second reaction stage converted crude synthesis gas in a third stage in a pressure swing absorption process in high purity H 2 and in a 0.5 to 10 vol.% H 2 S, 50 bis 95 vol.% CO 2 , 5 to 20 vol.% H 2 , 0.1 to 10 vol.% CO and 0.1 to 10 vol.% CH 4 , Ar, N 2 containing gas mixture is separated, the gas mixture of Endgas55sche is fed to a Claus process, the selectively separated from the gas mixture H 2 S is fed into the feed gas of the Claus process and the desulfurized exhaust gas of Endgas stiische, mixed with the end gas of the Claus process, is burned.
  • One embodiment of the invention is to recycle the H 2 S obtained in the regeneration of the detergent of the final gas scrubbing of the Claus process in the Claus process, thereby increasing the sulfur yield.
  • a chemical reactor (1) which is lined with a quench tank and lined with a layer of refractory material, is fed with residual oils via line (2), oxygen via line (3) and water vapor via line (4) via the burner arranged at the top of the reactor.
  • the raw gas produced flows into a quench tank and leaves it via a laterally arranged gas outlet.
  • the hot raw gas is cooled after leaving the reactor (1) directly by injecting water into the quench to full steam temperature.
  • the forming liquid slag drains over the reactor wall and is quenched in the quench container.
  • heavy metals and non-soluble compounds are involved, which are discharged via line (5).
  • the crude gas produced by non-catalytic partial oxidation at a gasification pressure of 50 bar abs and a gasification temperature of 1350 ° C. consists of 45% by volume H 2 , 45% by volume CO, 5% by volume CO 2 and ⁇ 1% by volume.
  • H 2 S and flows from the quench tank via line (6) in the converter (7), in which the CO is reacted with via line (8) supplied water vapor to CO 2 and further H 2 .
  • the crude synthesis gas containing 62 vol.% H 2 , 35 vol.% CO 2 , 2 vol.% CO and 1 vol.% H 2 S exiting via line (9) is fed to a pressure swing absorption system (10), in which the raw synthesis gas under a pressure of 48 bar abs selectively in H 2 , which is discharged via line (11) from the pressure swing system (10), and the other components that are adsorbed on porous material is decomposed.
  • the pressure swing absorption system (10) in which the raw synthesis gas under a pressure of 48 bar abs selectively in H 2 , which is discharged via line (11) from the pressure swing system (10), and the other components that are adsorbed on porous material is decomposed.
  • the gas mixture is mixed with the tail gas of the Claus plant and together fed to a final gas purification stage (13) of a Claus plant and selectively washed out by means of line (14) inflowing detergent from the gas mixture H 2 S.
  • detergents are typically selective action, chemical detergents, especially amines, such as methyldiethanolamine (MDEA) or sterically hindered amines (Flexsorb SE ®) are used.
  • MDEA methyldiethanolamine
  • Flexsorb SE ® sterically hindered amines

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Industrial Gases (AREA)
  • Gas Separation By Absorption (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Treating Waste Gases (AREA)
  • Hydrogen, Water And Hydrids (AREA)

Abstract

L'invention concerne un procédé de production d'éduits contenant de l'hydrogène, selon lequel le produit de départ est transformé, avec apport de gaz contenant de l'oxygène et d'hydrogène à des températures entre 1200 et 1500° C et des pression de 15 à 100 bar<SUB>abs</SUB> par oxydation partielle non catalytique et de manière autothermique, en un gaz brut contenant comme substances principales H<SUB>2</SUB> et CO ainsi que les composants CO<SUB>2</SUB>, H<SUB>2</SUB>O, CH<SUB>4</SUB> et des traces de H<SUB>2</SUB>S, COS, C<SUB>n</SUB>H<SUB>m</SUB>, N2 et d'Ar, le CO contenu dans le gaz brut étant ensuite converti en CO<SUB>2</SUB> et en H<SUB>2 </SUB>avec apport de vapeur d'eau. Une amélioration de ce procédé consiste à séparer le gaz brut de synthèse converti directement, à savoir sans subir de lavage visant à extraire le CO<SUB>2</SUB> und H<SUB>2</SUB>S et selon un procédé d'absorption et de changement de pression, en H<SUB>2</SUB> de grande pureté et en un mélange gazeux contenant H<SUB>2</SUB>S, CO<SUB>2</SUB>, H<SUB>2</SUB>, CO, CH<SUB>4</SUB>, Ar et N<SUB>2</SUB>, à introduire ce mélange gazeux dans le lavage de gaz de queue d'un procédé Claus, à acheminer le H<SUB>2</SUB>S séparé dans le gaz mis en oevre du procédé Claus, et à brûler l'effluent gazeux du lavage de gaz de queue, qui a été mélangé au gaz de queue du procédé Claus.
EP07786444A 2006-09-26 2007-07-31 Procédé de production d'hydrogène Withdrawn EP2077974A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006045379A DE102006045379B4 (de) 2006-09-26 2006-09-26 Verfahren zur Herstellung von Wasserstoff
PCT/EP2007/006746 WO2008037315A2 (fr) 2006-09-26 2007-07-31 Procédé de production d'hydrogène

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EP2077974A2 true EP2077974A2 (fr) 2009-07-15

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EP07786444A Withdrawn EP2077974A2 (fr) 2006-09-26 2007-07-31 Procédé de production d'hydrogène

Country Status (7)

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US (1) US8273323B2 (fr)
EP (1) EP2077974A2 (fr)
CN (1) CN101516766A (fr)
CA (1) CA2663238A1 (fr)
DE (1) DE102006045379B4 (fr)
WO (1) WO2008037315A2 (fr)
ZA (1) ZA200901945B (fr)

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DE102010020406B4 (de) * 2009-12-16 2012-02-09 Lurgi Gmbh Verfahren zum Betreiben eines Reformerofens und Reformeranlage
US8518356B2 (en) 2010-07-27 2013-08-27 Air Products And Chemicals, Inc. Method and apparatus for adjustably treating a sour gas
US8206669B2 (en) 2010-07-27 2012-06-26 Air Products And Chemicals, Inc. Method and apparatus for treating a sour gas
FR3019830B1 (fr) * 2014-04-14 2017-11-24 Gdf Suez Procede et dispositif de traitement d'un gaz de synthese provenant d'une etape de gazeification de biomasse
NL2013759B1 (en) * 2014-11-10 2016-09-07 Stichting Energieonderzoek Centrum Nederland Improved process for removing and recovering H2S from a gas stream.
US11472924B2 (en) * 2018-12-20 2022-10-18 Gas Technology Institute Methods and systems to decarbonize natural gas using sulfur to produce hydrogen and polymers
EP3960728A1 (fr) 2020-08-24 2022-03-02 Covestro Deutschland AG Procédé de fabrication d'isocyanate à valorisation thermiquement oxydative

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Also Published As

Publication number Publication date
US20100111824A1 (en) 2010-05-06
DE102006045379A1 (de) 2008-04-03
DE102006045379B4 (de) 2008-07-31
CA2663238A1 (fr) 2008-04-03
US8273323B2 (en) 2012-09-25
ZA200901945B (en) 2010-06-30
WO2008037315A3 (fr) 2008-10-02
WO2008037315A2 (fr) 2008-04-03
CN101516766A (zh) 2009-08-26

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