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WO2013035998A2 - Appareil pour produire un gaz composite contenant du monoxyde de carbone et de l'hydrogène et procédé correspondant - Google Patents

Appareil pour produire un gaz composite contenant du monoxyde de carbone et de l'hydrogène et procédé correspondant Download PDF

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Publication number
WO2013035998A2
WO2013035998A2 PCT/KR2012/006807 KR2012006807W WO2013035998A2 WO 2013035998 A2 WO2013035998 A2 WO 2013035998A2 KR 2012006807 W KR2012006807 W KR 2012006807W WO 2013035998 A2 WO2013035998 A2 WO 2013035998A2
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gas
hydrogen
carbon monoxide
carbon dioxide
product
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Korean (ko)
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WO2013035998A3 (fr
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김기현
정종헌
이승문
김성만
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Posco Holdings Inc
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Posco Co Ltd
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Publication of WO2013035998A3 publication Critical patent/WO2013035998A3/fr
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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • 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
    • C01B3/38—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 catalysts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • 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
    • C01B3/48—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
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/40—Carbon monoxide
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • 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
    • C01B2203/0205—Processes for making hydrogen or synthesis gas containing a reforming step
    • C01B2203/0227—Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step
    • C01B2203/0233—Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step the reforming step being a steam reforming 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
    • C01B2203/0205—Processes for making hydrogen or synthesis gas containing a reforming step
    • C01B2203/0227—Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step
    • C01B2203/0238—Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step the reforming step being a carbon dioxide reforming 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
    • C01B2203/0405—Purification by membrane separation
    • 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
    • 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
    • C01B2203/08—Methods of heating or cooling
    • C01B2203/0805—Methods of heating the process for making hydrogen or synthesis gas
    • 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
    • C01B2203/10—Catalysts for performing the hydrogen forming reactions
    • C01B2203/1041—Composition of the catalyst
    • C01B2203/1047—Group VIII metal catalysts
    • C01B2203/1052—Nickel or cobalt catalysts
    • C01B2203/1058—Nickel catalysts
    • 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
    • C01B2203/10—Catalysts for performing the hydrogen forming reactions
    • C01B2203/1041—Composition of the catalyst
    • C01B2203/1047—Group VIII metal catalysts
    • C01B2203/1064—Platinum group metal catalysts
    • C01B2203/107—Platinum catalysts
    • 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
    • C01B2203/12—Feeding the process for making hydrogen or synthesis gas
    • C01B2203/1205—Composition of the feed
    • C01B2203/1211—Organic compounds or organic mixtures used in the process for making hydrogen or synthesis gas
    • C01B2203/1235—Hydrocarbons
    • C01B2203/1241—Natural gas or methane
    • 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
    • C01B2203/12—Feeding the process for making hydrogen or synthesis gas
    • C01B2203/1258—Pre-treatment of the feed

Definitions

  • the present invention relates to a syngas production apparatus, and more particularly, to a syngas production apparatus including carbon monoxide and hydrogen using a steelmaking process gas.
  • CO 2 carbon dioxide
  • an object of the present invention is to provide a syngas production apparatus including carbon monoxide (CO) and hydrogen (H 2 ) by reacting carbon dioxide generated in an integrated steelmaking process with methane.
  • Synthetic gas production apparatus comprising carbon monoxide and hydrogen using a steelmaking process gas according to a preferred embodiment of the present invention for achieving the above object is spaced apart from the first pretreatment device of the methane-containing steel by-product gas And mixing the second pretreatment apparatus of the carbon dioxide-containing steel by-product gas, the methane-containing iron by-product gas treated by the first pretreatment apparatus, and the carbon dioxide-containing iron by-product gas treated by the second pretreatment apparatus.
  • Steam generating device for supplying steam to the gas, and reforming reactor receives the mixed gas supplied with the steam reforming to convert to a gas containing carbon monoxide and hydrogen.
  • the methane-containing steel by-product gas is characterized in that the COG (COKE OVEN GAS).
  • the carbon dioxide-containing steel by-product gas is characterized in that at least one selected from blast furnace flue gas, the flow reduction furnace flue gas of the Finex process, flue gas of the ironworks power plant and heating furnace flue gas and coke oven heating furnace flue gas for steel product production.
  • the carbon dioxide-containing steel by-product gas is characterized in that it further comprises an exhaust gas discharged from the reforming reactor.
  • the steam generator is characterized in that for receiving a heat source from the exhaust gas discharged from the reforming reactor.
  • the first pretreatment apparatus includes a first storage chamber for storing the methane-containing steel by-product gas, and a methane-containing steel by-product gas purification equipment discharged from the first storage chamber.
  • the first pretreatment apparatus includes a liquefied natural gas (LNG) blowing conduit for additionally supplying methane to the methane-containing steel by-product gas discharged from the first storage chamber, and a desulfurization facility for removing sulfur from the liquefied natural gas. It further includes.
  • LNG liquefied natural gas
  • the second pretreatment apparatus includes a second storage chamber for storing the carbon dioxide-containing steel by-product gas, and a carbon dioxide-containing steel by-product gas purification equipment discharged from the second storage chamber.
  • the second pretreatment apparatus further includes a carbon dioxide separation apparatus for separating carbon dioxide from some or all of the purified carbon dioxide-containing steel by-product gas.
  • the carbon dioxide separation unit is characterized in that receiving a heat source from the exhaust gas discharged from the reforming reactor.
  • the syngas production apparatus including carbon monoxide and hydrogen further includes a boosting apparatus for boosting a mixed gas of the methane-containing steel by-product gas and the carbon dioxide-containing steel by-product gas.
  • a temperature raising device for raising the temperature of the boosted mixed gas to be suitable for a reaction temperature in the reforming reactor.
  • the temperature raising device is characterized in that for receiving a heat source from the exhaust gas discharged from the reforming reactor.
  • the syngas production apparatus including the carbon monoxide and hydrogen further includes a hydrogen production apparatus for producing hydrogen from some or all of the carbon monoxide-containing reducing gas produced by reforming the mixed gas in the reforming reactor.
  • the apparatus for producing hydrogen further includes a water gas shift reactor for amplifying the hydrogen content of the carbon monoxide-containing reducing gas, and a hydrogen separation device for separating hydrogen from the carbon monoxide-containing reducing gas in which the hydrogen is amplified.
  • the hydrogen production apparatus further includes a heat recovery device for cooling the reformed carbon monoxide-containing reducing gas.
  • the water gas shift reactor is characterized in that the steam is supplied from the steam generator.
  • Part of the hydrogen separated by the hydrogen separation device is characterized in that it is mixed with a synthesis gas containing carbon monoxide and hydrogen reformed by the reforming reactor.
  • the carbon dioxide-containing exhaust gas discharged from the hydrogen separation device is mixed with the carbon dioxide-containing steel by-product gas.
  • the molar ratio of methane, carbon dioxide, and steam in the mixed gas supplied to the reforming reactor is 0 ⁇ H 2 O / CO 2 ⁇ 5, 0.1 ⁇ (H 2 0+ CO 2 ) / CH 4 ⁇ 5 is satisfied.
  • Iron ore reduction system can reduce the iron ore by supplying a synthesis gas containing carbon monoxide and hydrogen produced by the synthesis gas production apparatus to the iron ore reduction device.
  • the iron ore reduction device is characterized in that the flow reduction furnace of the blast furnace (Fine furnace) or Finex process.
  • Synthetic gas production method comprising carbon monoxide and hydrogen according to another embodiment of the present invention for achieving the above object is a pre-treatment of methane-containing steel by-product by-product, pre-treatment of carbon dioxide-containing steel by-product by gas, pre-treated Generating a mixed gas by mixing a methane-containing steel by-product gas and a carbon dioxide-containing steel by-product gas, and then boosting the gas at a constant pressure, raising the temperature of the boosted mixed gas to a constant temperature, and converting the elevated gas into a reforming reactor. Feeding and reforming to a gas comprising carbon monoxide and hydrogen.
  • the pretreatment of the methane-containing steel by-product gas may include purifying the methane-containing steel by-product gas and mixing liquefied natural gas (LNG) with the purified methane-containing steel by-product gas.
  • LNG liquefied natural gas
  • the methane-containing steel by-product gas is characterized in that the COG (COKE OVEN GAS).
  • the pre-treatment of the carbon dioxide-containing steel by-product gas may include purifying the carbon dioxide-containing steel by-product gas, and separating carbon dioxide from some or all of the purified carbon dioxide-containing steel by-product gas.
  • the carbon dioxide-containing steel by-product gas is characterized in that at least one selected from blast furnace flue gas, the flow reduction furnace flue gas of the Finex process, flue gas of steelworks power generation equipment and a furnace flue gas and coke oven heating furnace flue gas for steel product production.
  • the carbon dioxide-containing steel by-product gas is characterized in that it further comprises an exhaust gas discharged from the reforming reactor.
  • Synthesis gas production method comprising the carbon monoxide and hydrogen further comprises the step of supplying steam to the heated mixture gas.
  • the syngas production method comprising the carbon monoxide and hydrogen further comprises the step of producing hydrogen from some or all of the reformed carbon monoxide-containing reducing gas.
  • the production of hydrogen includes cooling the carbon monoxide-containing reducing gas, converting the cooled carbon monoxide-containing reducing gas into a water gas sheet, and separating hydrogen from the water gas sheet converted reducing gas. .
  • the hydrogen produced is characterized in that it is mixed with the reformed gas.
  • Iron ore reduction method can reduce the iron ore by supplying a synthesis gas containing carbon monoxide and hydrogen produced by the production method to the iron ore reduction apparatus.
  • the iron ore reducing device is characterized in that the blast furnace or the flow reduction furnace of the Finex process.
  • the carbon dioxide generated in the integrated steelmaking process is reacted with methane to produce a synthesis gas containing carbon monoxide (CO) and hydrogen (H 2 ) to recycle to iron ore reduction or use in the production of dimethyl ether (DME), etc.
  • a synthesis gas containing carbon monoxide (CO) and hydrogen (H 2 ) to recycle to iron ore reduction or use in the production of dimethyl ether (DME), etc.
  • FIG. 1 is a diagram illustrating a system diagram of a syngas production apparatus including carbon monoxide and hydrogen using a steelmaking process gas according to an embodiment of the present invention.
  • FIG. 2 is a manufacturing process diagram of a synthesis gas including carbon monoxide and hydrogen using a steelmaking process gas according to the present invention.
  • FIG. 3 is a diagram illustrating a system diagram of a syngas production apparatus including carbon monoxide and hydrogen using a steelmaking process gas according to another embodiment of the present invention.
  • FIG. 1 is a system diagram of a syngas production apparatus including carbon monoxide and hydrogen using a steelmaking process gas according to an embodiment of the present invention.
  • Synthetic gas production apparatus comprising carbon monoxide and hydrogen using a steelmaking process gas according to an embodiment of the present invention
  • the first pretreatment device 10 of the methane-containing iron by-product gas the second pretreatment of carbon dioxide-containing iron by-product gas Steam is added to a mixed gas in which the methane-containing steel by-product gas treated by the apparatus 20 and the first pretreatment apparatus 10 and the carbon dioxide-containing iron by-product gas treated by the second pretreatment apparatus 20 are mixed.
  • Reducing iron ore by using a steam generator 30 for supplying, a reforming reactor 40 for reforming the mixed gas supplied with the steam to a reducing gas containing carbon monoxide, and a reducing gas containing carbon monoxide.
  • Iron ore reduction device 50 is included.
  • the first preliminary treatment apparatus 10 includes a first storage chamber 13 for storing the methane-containing iron by-product gas, and a methane-containing iron by-product gas purification equipment 15 discharged from the first storage chamber 13. ).
  • the methane-containing steel by-product gas may be supplied directly through the gas conduit without the first storage chamber 13.
  • the first preliminary treatment apparatus 10 includes a liquefied natural gas (LNG) blowing conduit 17 for additionally supplying methane to the methane-containing steel by-product gas discharged from the first storage chamber 13, and It may further include a desulfurization facility 19 for removing sulfur from the liquefied natural gas.
  • LNG liquefied natural gas
  • the methane-containing steel by-product gas includes a by-product gas containing a large amount of methane (CH4), such as coke oven gas (COG) in an integrated steelmaking process.
  • CH4 methane
  • COG coke oven gas
  • Coke oven gas includes hydrogen, carbon monoxide, carbon dioxide, nitrogen, tar and the like in addition to methane.
  • This by-product gas contains tar, sulfur, dust, etc., which can be poisoned in the catalyst in the reforming reactor 40 described below, and is removed through an appropriate purification facility 15.
  • an additional methane-containing gas for example, liquefied natural gas ( LNG) can be mixed with the purified methane-containing steel off-gas.
  • the mixing ratio of the LNG supplied from the outside and the methane-containing by-product gas may be mixed in consideration of the supply and demand situation of the by-product gas generated in the steel mill and the supply and demand situation of the liquefied natural gas. Therefore, it is also possible when the proportion of the by-product gas in the steel mill is 100% or when the external supplied liquefied natural gas is 100%.
  • a desulfurization facility 19 for removing sulfur contained in the liquefied natural gas may be added.
  • the second preliminary treatment apparatus includes a second storage chamber 23 for storing the carbon dioxide-containing iron by-product gas, and a carbon dioxide-containing iron by-product gas purification equipment 25 discharged from the second storage chamber 23.
  • the carbon dioxide-containing steel by-product gas may be supplied directly through a pipe without being stored in the second storage chamber 23.
  • the carbon dioxide-containing steel by-product gas is a blast furnace offgas generated in an integrated steelmaking process, a flue gas in a flow reduction furnace of a FINEX process, a flue gas of a steel plant power generation facility, a furnace flue gas for producing steel products, and a coke oven. It includes furnace flue-gases, which contain large amounts of carbon dioxide.
  • the carbon dioxide-containing steel by-product gas is removed through appropriate purification to remove tar, sulfur, dust, and the like, which may be poisonous substances in the catalyst of the reforming reactor 40.
  • the purified carbon dioxide-containing by-product gas contains a large amount of inert gas such as nitrogen which is not involved in the reduction reaction of iron ore
  • the concentration of the inert gas may be reduced by separating carbon dioxide using a carbon dioxide separator 27 using a method, a membrane method, and then mixing the carbon dioxide with a by-product gas.
  • the iron ore reduction device 50 After producing the mixed gas by mixing the purified methane-containing iron by-product gas and carbon dioxide-containing iron by-product gas, the iron ore reduction device 50, for example, a blast furnace, the flow reduction furnace operation of the Finex process using a compressor It can boost the pressure up to 3 ⁇ 10Barg.
  • the boosted mixed gas is heated to 600 to 1,000 ° C., which is a reaction temperature in the reforming reactor 40 described below using a heater and a heat exchanger.
  • 600 to 1,000 ° C. which is a reaction temperature in the reforming reactor 40 described below using a heater and a heat exchanger.
  • part or all of the heat amount required for the temperature increase may be supplied through a suitable heat exchange from the hot exhaust gas generated in the reforming reactor 40.
  • Some or all of the heat required for the production of steam may be supplied through appropriate heat exchange from the hot exhaust gas generated in the reforming reactor 40.
  • the molar ratio of methane, carbon dioxide, and steam supplied to the reforming reactor 40 is preferably 0 or more and 5 or less for H 2 O / CO 2 , and 0.1 or more and 5 for (H 2 0 + CO 2 ) / CH 4 .
  • the following is preferable.
  • the main reforming reaction in the reforming reactor 40 is as follows.
  • the carbon dioxide generated in the steel mill can be regenerated as carbon monoxide through the reaction formula (1) and recycled to the reducing gas, so that the carbon dioxide generated in the steel mill can be greatly reduced.
  • the amount of heat required for the reaction can be supplied by combustion of fuel in the outer jacket of the reactor.
  • the high-temperature exhaust gas is discharged to the outside of the reactor can be used as a steam generator, the temperature of the mixed gas, the amount of heat required for carbon dioxide separation.
  • the reforming reactor 40 may be a fixed bed or a fluidized bed reactor.
  • the reforming catalyst is disposed in a state filled with the reactor, and in the fluidized bed reactor, the reforming reaction occurs while the catalyst flows inside the flow reactor.
  • platinum or nickel-based materials may be used as the catalyst in the reforming reactor.
  • the reformed reducing gas produced in the reforming reactor 40 maintains a pressure of 3 to 10 barg and a temperature of 600 to 1,000 ° C., and thus can be used as a reducing gas of the blast furnace and the fluid reduction reactor without additional equipment.
  • the hydrogen production apparatus 80 includes a water gas shift reactor 83 for amplifying the hydrogen content of the carbon monoxide-containing reducing gas, and a hydrogen separation device 85 for separating hydrogen from the hydrogen-amplified carbon monoxide-containing reducing gas. It may further include.
  • a part of the reformed reducing gas is cooled to 200-450 ° C. through a heat recovery device 81, and then the content of hydrogen in the reducing gas is reduced by using a water gas shift reactor (WGSR).
  • WGSR water gas shift reactor
  • hydrogen may be separated through a hydrogen separation device 85 using a pressure swing adsorption (PSA) method or a membrane method.
  • PSA pressure swing adsorption
  • the steam produced by the steam generator may be supplied to the water gas shift reactor 83 to amplify the amount of hydrogen.
  • the separated hydrogen gas may be supplied to the external hydrogen market or mixed with the reformed reducing gas to increase the content of hydrogen in the reducing gas.
  • the production rate of molten iron and reduced iron can be improved by improving the iron ore reduction rate by hydrogen.
  • the carbon dioxide-containing flue gas generated in the hydrogen separation device 85 may be mixed with carbon dioxide-containing steel by-product gas to generate a reformed reducing gas.
  • FIG. 2 is a manufacturing process diagram of a synthesis gas including carbon monoxide and hydrogen using a steelmaking process gas according to the present invention.
  • Synthetic gas production method comprising carbon monoxide and hydrogen using a steelmaking process gas according to an embodiment of the present invention is a step of pre-treatment of methane-containing steel by-product gas, pre-treatment of carbon dioxide-containing iron by-product gas, pre-treated methane Generating a mixed gas by mixing the containing iron by-product gas and the carbon dioxide-containing iron by-product gas, and then raising the pressure to a predetermined pressure, raising the temperature of the boosted mixed gas to a predetermined temperature, and reforming the elevated mixed gas to a reactor (40). And reforming the gas into a gas containing carbon monoxide and hydrogen.
  • the preliminary treatment of the methane-containing steel by-product gas may include: purifying the methane-containing steel by-product gas; And carbon monoxide and hydrogen including mixing liquefied natural gas (LNG) with the purified methane-containing steel by-product gas.
  • LNG liquefied natural gas
  • the methane-containing steel by-product gas is characterized in that the COG (COKE OVEN GAS).
  • the pre-treatment of the carbon dioxide-containing steel by-product gas is a step of purifying the carbon dioxide-containing steel by-product gas; And separating carbon dioxide from some or all of the purified carbon dioxide-containing steel by-product gas.
  • the carbon dioxide-containing steel by-product gas is characterized in that at least one selected from blast furnace flue gas, the flow reduction furnace flue gas of the Finex process, flue gas of steelworks power generation equipment and a furnace flue gas and coke oven heating furnace flue gas for steel product production.
  • the carbon dioxide-containing steel by-product gas further includes a flue gas discharged to the reforming reactor.
  • Synthesis gas production method comprising the carbon monoxide and hydrogen further comprises the step of supplying steam to the heated mixture gas.
  • the syngas production method comprising the carbon monoxide and hydrogen further comprises the step of producing hydrogen from some or all of the reformed carbon monoxide-containing reducing gas.
  • the production of hydrogen may include cooling the carbon monoxide-containing reducing gas; Converting the cooled carbon monoxide-containing reducing gas into a water gas sheet; And separating hydrogen from the water gas sheet converted reducing gas.
  • Syngas comprising carbon monoxide and hydrogen may be used for the production of reducing gas or dimethyl ether (DME) for iron ore reduction.
  • DME dimethyl ether
  • FIG. 3 is a view showing an iron ore reduction system for reducing iron ore using a synthesis gas containing carbon monoxide and hydrogen using a steelmaking process gas according to an embodiment of the present invention.
  • Iron ore reduction method can reduce the iron ore by supplying a synthesis gas containing carbon monoxide and hydrogen produced by the synthesis gas production method to the iron ore reduction device.
  • the iron ore reduction device is characterized in that the blast furnace or the flow reduction furnace of the Finex process.

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  • Organic Chemistry (AREA)
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  • Inorganic Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
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  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
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  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
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  • Hydrogen, Water And Hydrids (AREA)
  • Manufacture Of Iron (AREA)

Abstract

L'invention concerne un appareil pour produire un gaz composite contenant du monoxyde de carbone et de l'hydrogène. L'appareil pour produire le gaz composite contenant du monoxyde de carbone et de l'hydrogène selon l'invention comprend: un premier dispositif de prétraitement pour un gaz dérivé de la ferronnerie contenant du méthane; un second dispositif de prétraitement pour un gaz dérivé de la ferronnerie contenant du dioxyde de carbone, lequel dispositif est placé à distance du premier dispositif de prétraitement; un dispositif générateur de vapeur pour mélanger le gaz dérivé de la ferronnerie contenant du méthane, traité par le premier dispositif de prétraitement et le gaz dérivé de la ferronnerie contenant du dioxyde de carbone traité par le second dispositif de prétraitement, et fournissant de la vapeur aux gaz mélangés; et un dispositif de réaction de reformage conçu pour recevoir et assurer le reformage des gaz mélangés auxquels la vapeur est ajoutée et pour convertir ces gaz en un gaz réduit contenant du monoxyde de carbone.
PCT/KR2012/006807 2011-09-06 2012-08-27 Appareil pour produire un gaz composite contenant du monoxyde de carbone et de l'hydrogène et procédé correspondant Ceased WO2013035998A2 (fr)

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CN201280043420.7A CN103781724A (zh) 2011-09-06 2012-08-27 含有一氧化碳和氢气的合成气体的制造装置及其制造方法

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KR1020110090306A KR101321072B1 (ko) 2011-09-06 2011-09-06 일산화탄소 및 수소를 포함하는 합성가스 제조장치 및 그의 제조방법
KR10-2011-0090306 2011-09-06

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WO2013035998A3 (fr) 2013-05-02
CN107128876A (zh) 2017-09-05
KR20130026869A (ko) 2013-03-14
CN103781724A (zh) 2014-05-07
KR101321072B1 (ko) 2013-10-23

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