CN115611235B - Detoxication device for producing hydrogen by blast furnace gas and production process for producing hydrogen by blast furnace gas - Google Patents
Detoxication device for producing hydrogen by blast furnace gas and production process for producing hydrogen by blast furnace gas Download PDFInfo
- Publication number
- CN115611235B CN115611235B CN202211323256.7A CN202211323256A CN115611235B CN 115611235 B CN115611235 B CN 115611235B CN 202211323256 A CN202211323256 A CN 202211323256A CN 115611235 B CN115611235 B CN 115611235B
- Authority
- CN
- China
- Prior art keywords
- cavity
- detoxification
- blast furnace
- furnace gas
- cleaning
- 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.)
- Active
Links
- 239000007789 gas Substances 0.000 title claims abstract description 112
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 48
- 239000001257 hydrogen Substances 0.000 title claims abstract description 43
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 title abstract description 15
- 238000001784 detoxification Methods 0.000 claims abstract description 101
- 230000005540 biological transmission Effects 0.000 claims abstract description 76
- 238000004140 cleaning Methods 0.000 claims abstract description 67
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 23
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 21
- 230000023556 desulfurization Effects 0.000 claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 13
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 32
- 239000007788 liquid Substances 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 238000006243 chemical reaction Methods 0.000 claims description 18
- 238000003825 pressing Methods 0.000 claims description 18
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 16
- 239000001569 carbon dioxide Substances 0.000 claims description 15
- 238000005406 washing Methods 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 9
- 238000011084 recovery Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 238000001179 sorption measurement Methods 0.000 claims description 9
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 8
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 7
- 239000012459 cleaning agent Substances 0.000 claims description 7
- 239000002737 fuel gas Substances 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 claims description 6
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 5
- 239000012670 alkaline solution Substances 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 5
- 239000002250 absorbent Substances 0.000 claims description 4
- 230000002745 absorbent Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 4
- CMZUMMUJMWNLFH-UHFFFAOYSA-N sodium metavanadate Chemical compound [Na+].[O-][V](=O)=O CMZUMMUJMWNLFH-UHFFFAOYSA-N 0.000 claims description 4
- 235000018553 tannin Nutrition 0.000 claims description 4
- 229920001864 tannin Polymers 0.000 claims description 4
- 239000001648 tannin Substances 0.000 claims description 4
- 150000002431 hydrogen Chemical class 0.000 claims description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 239000002994 raw material Substances 0.000 description 9
- 239000003054 catalyst Substances 0.000 description 8
- 229910000510 noble metal Inorganic materials 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 6
- 239000000571 coke Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000000729 antidote Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- JGIATAMCQXIDNZ-UHFFFAOYSA-N calcium sulfide Chemical compound [Ca]=S JGIATAMCQXIDNZ-UHFFFAOYSA-N 0.000 description 2
- -1 cation salt Chemical class 0.000 description 2
- 229910052878 cordierite Inorganic materials 0.000 description 2
- 230000000382 dechlorinating effect Effects 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- PBYZMCDFOULPGH-UHFFFAOYSA-N tungstate Chemical compound [O-][W]([O-])(=O)=O PBYZMCDFOULPGH-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- NWAHZABTSDUXMJ-UHFFFAOYSA-N platinum(2+);dinitrate Chemical group [Pt+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O NWAHZABTSDUXMJ-UHFFFAOYSA-N 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- XMVONEAAOPAGAO-UHFFFAOYSA-N sodium tungstate Chemical group [Na+].[Na+].[O-][W]([O-])(=O)=O XMVONEAAOPAGAO-UHFFFAOYSA-N 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Classifications
-
- 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
- C01B3/06—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents
- C01B3/12—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents by reaction of water vapour with carbon monoxide
- C01B3/14—Handling of heat and steam
-
- 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
- C01B3/06—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents
- C01B3/12—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents by reaction of water vapour with carbon monoxide
- C01B3/16—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents by reaction of water vapour with carbon monoxide using catalysts
-
- 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
- C01B3/50—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
-
- 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
- C01B3/50—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
- C01B3/52—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by contacting with liquids; Regeneration of used liquids
-
- 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
- C01B3/50—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
- 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
- C01B2203/0415—Purification by absorption in liquids
-
- 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
-
- 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
- C01B2203/0465—Composition of the impurity
- C01B2203/0475—Composition of the impurity the impurity being carbon dioxide
-
- 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
- C01B2203/0465—Composition of the impurity
- C01B2203/049—Composition of the impurity the impurity being carbon
-
- 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
-
- 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
-
- 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
- C01B2203/1082—Composition of support materials
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Industrial Gases (AREA)
Abstract
The invention discloses a detoxification device for producing hydrogen by blast furnace gas and a production process of the blast furnace gas, wherein the detoxification device for producing the hydrogen by the blast furnace gas comprises a detoxification cavity, a transmission cavity, a cleaning cavity and a rotating roller, wherein the rear side of the detoxification cavity is sequentially connected with the transmission cavity and the cleaning cavity, a desulfurization mechanism is arranged in the detoxification cavity and is used for prolonging the path of the blast furnace gas passing through the detoxification cavity and desulfurizing the blast furnace gas, a plurality of rotating rollers are arranged in the transmission cavity, desulfurizing agents are coated outside the rotating rollers, two ends of the rotating rollers respectively extend into the detoxification cavity and the cleaning cavity, and the transmission cavity is used for switching the corresponding positions of the two ends of the rotating rollers with the detoxification cavity and the cleaning cavity respectively.
Description
Technical Field
The invention relates to the field of blast furnace gas treatment, in particular to a detoxification device for producing hydrogen by using blast furnace gas and a production process for producing hydrogen by using blast furnace gas.
Background
Iron ore and coke (or coal is prepared into coke after coking) are mainly used as raw materials in the steel industry in China, and a tapped iron product is refined, so that a carbon source of carbon dioxide discharged by the steel industry mainly comes from the coke. In the steel industry, coke is mainly used in blast furnace or converter processes, and the coke is converted into blast furnace gas and converter gas by reacting with oxygen (or air) during use.
The main component of blast furnace gas is CO and CO 2 、N 2 、H 2 、CH 4 Etc., wherein the combustible component CO is about 15-30%, H 2 、CH 4 Is very low in CO 2 、N 2 The content of (C) is 15-30%, 30-60%, and the heat value is only 3500KJ/m 3 Left and right. CO in blast furnace gas 2 、N 2 The combustion-supporting type blast furnace gas combustion furnace is not involved in combustion to generate heat and can not support combustion, but also absorbs a large amount of heat generated in the combustion process, so that the theoretical combustion temperature of the blast furnace gas is lower. The ignition point of blast furnace gas is not high, no ignition obstacle appears to exist, but in the actual combustion process, the temperature of the mixed gas is required to be far higher than the ignition point so as to ensure the stability of combustion. The theoretical combustion temperature of blast furnace gas is low, and the reference is made toThe amount of the mixed gas and the blast furnace gas is large, so that the temperature rising speed of the mixed gas is slow, the temperature is low, and the combustion stability is poor.
The invention discloses a production process for producing hydrogen by using blast furnace gas, which takes blast furnace gas as a raw material, and produces blue hydrogen and carbon dioxide products through the procedures of conversion, CO2 carbon recovery, pressure swing adsorption hydrogen extraction and the like, and simultaneously, low-sulfur fuel gas is produced by a byproduct and is supplied to a whole-plant fuel gas pipe network, so that the use of the whole-plant fuel gas is satisfied. Furthermore, according to the principle of hydrogen production of blast furnace gas, a noble metal-loaded WMoOx catalyst is synthesized, which not only can rapidly catalyze the reaction of carbon monoxide with lower concentration in the blast furnace gas and water, but also has longer service life and manufacturing cost; the carbon trapping and blue hydrogen co-production before the blast furnace gas combustion are realized, and the added value of the blast furnace gas is improved.
Therefore, further purification of blast furnace gas and development of products with higher heat value are effective means for improving the utilization rate of blast furnace gas. Due to CO+CO in blast furnace gas 2 About 45% of the total content of (c) and can be used as a reduction of hydrogen. If the high-purity high-yield hydrogen can be prepared by effectively utilizing the blast furnace gas, the added value of the blast furnace gas can be greatly improved.
However, the detoxification agent used in the conventional hydrogen reduction detoxification device needs to be replaced manually at regular intervals, and the product after detoxification cannot be further recovered, so that the detoxification effect is poor.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides a detoxification device for producing hydrogen by blast furnace gas and a production process for producing hydrogen by blast furnace gas, so as to solve the problems.
The utility model provides a blast furnace gas is detoxification device for hydrogen manufacturing, includes detoxification chamber, still includes the transmission chamber, washs chamber and live-rollers, detoxification chamber rear side has connected gradually the transmission chamber with wash the chamber, be provided with desulfurization mechanism in the detoxification chamber, desulfurization mechanism is used for prolonging blast furnace gas and is in the route that the detoxification intracavity passed and carry out the desulfurization to blast furnace gas, be provided with a plurality of in the transmission chamber live-rollers, the cladding of live-rollers outside has the desulfurizing agent, the both ends of live-rollers stretch into respectively the detoxification chamber with wash the chamber, the transmission chamber be used for switching the both ends of live-rollers respectively with the detoxification chamber with wash the corresponding position in chamber.
Further, the desulfurization mechanism includes: the device comprises a baffle plate, a rotating groove, air outlet holes and an air inlet hole, wherein a plurality of baffle plates which are uniformly distributed are arranged in the detoxification cavity along the vertical direction, the air inlet hole is arranged between the side wall of the detoxification cavity and the baffle plate at the top, the air outlet holes are arranged between the bottom of the side wall of the detoxification cavity opposite to the baffle plate and the baffle plate at the bottom, the rotating grooves are arranged between the top wall of the detoxification cavity and the baffle plate at the top, between any two adjacent baffle plates and between the bottom wall of the detoxification cavity and the baffle plate at the bottom, the rotating rollers are arranged corresponding to the rotating grooves, and the rotating rollers extend into the detoxification cavity through the rotating grooves, and blast furnace gas enters the detoxification cavity from the air inlet hole, sequentially passes through the rotating rollers and then is discharged from the air outlet holes.
Further, the desulfurizing agent is one or a mixture of more of ferric oxide, aluminum oxide, sodium carbonate, sodium metavanadate, tannin extract and water.
Further, the cleaning cavity is internally provided with a liquid inlet hole, a liquid outlet hole and a cleaning groove, the top and the bottom of the cleaning cavity are respectively provided with the liquid inlet hole and the liquid outlet hole, the cleaning cavity is internally provided with a plurality of cleaning grooves corresponding to the rotating groove, the rotating roller stretches into the cleaning cavity through the cleaning grooves, the cleaning cavity is internally provided with a cleaning agent, and the cleaning agent is set into alkaline solution.
Further, the outside of the rotating roller is also provided with a sealing assembly, the sealing assembly comprises a first retaining plate and a second retaining plate, the first retaining plate and the second retaining plate are connected to the center of the outside of the rotating roller in a symmetrical mode, the second retaining plate is movably abutted to the inner wall of the detoxification cavity, and the first retaining plate is movably abutted to the inner wall of the cleaning cavity.
Further, a rotating shaft is further arranged in the transmission cavity, two ends of the rotating shaft are rotatably connected with the side wall of the transmission cavity, the outer side of the rotating shaft is fixedly connected with the rotating roller, and two ends of the rotating shaft extend out of the transmission cavity and are connected with a power mechanism.
Further, the power mechanism comprises a transmission gear, a sliding seat and transmission teeth,
the two ends of the rotating shaft extending out of the transmission cavity are fixedly connected with transmission gears, the two outer side walls of the transmission cavity are respectively provided with a sliding seat corresponding to the transmission gears, one side, close to the corresponding transmission gears, of each sliding seat is provided with transmission teeth, and the transmission teeth are matched with the transmission gears in a gear meshing mode; the two sides between the transmission gear and the two outer side walls of the cleaning cavity are also provided with the limiting component, and the two sides between the top of the transmission gear and the outer top wall of the transmission cavity are also provided with the synchronizing component.
Further, the synchronous assembly comprises a rotating pin, a pressing plate and a U-shaped seat, the two ends of the pressing plate and the U-shaped seat are fixedly connected with the top of the sliding seat together, the bottom of the U-shaped seat is movably propped against the top of the transmission cavity, the top of the detoxification cavity is rotatably connected with the rotating pin, the outer side of the rotating pin is fixedly connected with the pressing plate, and the tail end of the pressing plate is movably propped against the top of the U-shaped seat.
Further, spacing subassembly includes spacing groove, spacing key and extension spring, two lateral walls in washing chamber have all been seted up the spacing groove, the spacing inslot is slided and is provided with spacing key, both sides spacing key all with correspond sliding seat fixed connection, spacing key's bottom with be provided with between the spacing groove diapire extension spring, extension spring keeps spacing key has the trend of keeping away from spacing groove bottom.
The production process of the blast furnace gas hydrogen production is characterized by comprising the following steps of:
(1) Compressing raw gas of blast furnace gas by a compressor, and washing with water/alkali to obtain pretreated blast furnace gas;
(2) Compressing the pretreated blast furnace gas again, and carrying out detoxification treatment to obtain purified blast furnace gas;
(3) Mixing the purified blast furnace gas and water vapor, sending the mixture into an adiabatic shift converter, carrying out a change reaction on part of CO and water vapor to produce CO and H, carrying out heat recovery treatment after the reaction is finished, and then separating liquid through a cooler and a liquid separator to remove most of water vapor;
(4) Introducing the blast furnace gas subjected to liquid separation and washing treatment into an absorption tower, separating CO by using a carbon dioxide absorbent, treating by using a cooler and a liquid separator to obtain relatively dry carbon dioxide gas, and finally introducing into a detoxification device to carry out desulfurization treatment, and capturing CO;
(5) And introducing the rest gas into a pressure swing adsorption device, extracting part of hydrogen, pressurizing, storing the part of hydrogen as high-purity hydrogen in a high-purity hydrogen collecting tank, and outputting the rest gas as sulfur-free fuel gas.
The beneficial effects of the invention are as follows:
1. the baffle plate is arranged in the desulfurization mechanism, so that the path of the blast furnace gas in the detoxification cavity is longer, and the contact time of the blast furnace gas and the detoxification agent is prolonged; then, the surface of the rotating roller is designed to ensure that the contact area of the blast furnace gas and the detoxication agent is larger, so that the desulfurization effect of the blast furnace gas is better.
2. The sulfide adsorbed on the outer side of the detoxication agent is cleaned by the rotation of the rotating roller; one side of the two sides of the rotating roller is always kept in the cleaning cavity, and the other side of the rotating roller is in the detoxification cavity, so that when the blast furnace gas is introduced into the detoxification device, desulfurization treatment is carried out in the detoxification cavity, and sulfide cleaning is carried out in the cleaning cavity; the switching of the two sides of the rotating roller can be realized by rotating the rotating roller; the detoxication agent can be used all the time without manual replacement, so that the use is more convenient, and the resource is saved.
3. The sealing assembly is arranged, so that the first retaining plate is movably abutted against the inner wall of the cleaning cavity, and the second retaining plate is movably abutted against the inner wall of the detoxification cavity; at the moment, the detoxification cavity and the cleaning cavity are separated by the first retaining plate and the second retaining plate, so that the sealing in the detoxification cavity is realized, and the desulfurization effect of the blast furnace gas is good.
Drawings
Fig. 1: process flow for co-production of hydrogen by capturing carbon in blast furnace gas
FIG. 2 is a schematic diagram of the overall structure of the detoxification device of the present invention;
FIG. 3 is a schematic view of the internal structure of the detoxification cavity of the present invention;
FIG. 4 is a schematic cross-sectional view of the present invention;
FIG. 5 is a schematic view showing the internal structure of the cleaning chamber of the present invention;
FIG. 6 is a schematic side elevational view of the present invention;
FIG. 7 is a schematic view of the internal structure of the transmission chamber of the present invention;
FIG. 8 is a schematic illustration of the power mechanism and seal assembly of the present invention;
FIG. 9 is an enlarged schematic view of the structure of FIG. 5A according to the present invention;
FIG. 10 is a schematic illustration of the position of the seal assembly and rotatable roller of the present invention;
in the figure: 1. a first raw material compressor; 2. a washing device; 3. a second raw material compressor; 4. 11, 16, 19, coolers; 5. a preheater; 6. 15, a detoxification device; 7. a first adiabatic heat exchange furnace; 8. a second adiabatic shift furnace; 9. 13, a heat recovery device; 10. 12, 20, separating and washing devices; 14. an absorption tower; 17. a heat exchanger; 18. a regeneration tower; 21. a reboiler; 22- - -a desulfurizing device; 23. an adsorption tank; 25. a hydrogen collection tank; 26. a fuel gas collection tank; 31. a detoxification cavity; 32. a transmission cavity; 33. cleaning the cavity; 41. a baffle plate; 42. a rotating groove; 43. an air outlet hole; 44. an air inlet hole; 51. a rotating shaft; 52. a rotating roller; 61. a liquid inlet hole; 62. a liquid outlet hole; 63. cleaning the groove; 71. a rotation pin; 72. a pressing plate; 73. a U-shaped seat; 81. a transmission gear; 82. a sliding seat; 83. a drive tooth; 91. a limit groove; 92. a limit key; 93. a tension spring; 94. a first retaining plate; 95. and a second retaining plate.
Detailed Description
Example 1
A production process for producing hydrogen by using blast furnace gas comprises the following steps:
(1) Compressing raw material gas of blast furnace gas by a first raw material compressor 1 to 1.03MPa, and then introducing the raw material gas into a water washing device 2 for washing to obtain pretreated blast furnace gas;
(2) Compressing the pretreated blast furnace gas by a second raw material compressor 3 to a pressure of 2.3MPa, and then carrying out detoxification treatment in an adsorption detoxification tank 6 to remove dust, chloride ions and sulfides in the device, thereby obtaining purified blast furnace gas;
(3) Mixing the purified blast furnace gas and water vapor, sending into a first-stage adiabatic shift converter 7, and carrying out a change reaction on part of CO and water vapor to produce CO 2 And H 2 Then heat recovery treatment is carried out by a heat recovery device 13, and the heat recovery treatment is led into a second-stage adiabatic shift converter 8, and the residual CO and water vapor are subjected to a change reaction to produce CO 2 And H 2 After the reaction is finished, introducing the mixture into a heat recovery device 9 for heat recovery treatment, separating the mixture once through a liquid separator 10, and finally separating the mixture through a cooler 11 and a liquid separator 12 to remove most of water vapor;
(4) Introducing the separated and washed blast furnace gas into an absorption tower 14 and supplementing carbon dioxide absorbent to carry out CO 2 The solution after absorbing carbon dioxide by the absorption tower enters a regeneration tower 18 through a lean-rich solvent heat exchanger 17 for desorption treatment to obtain carbon dioxide, then the carbon dioxide absorption solution after being treated by the regeneration tower 18 is further heated through the lean-rich solvent heat exchanger 17 or a reboiler 21, and is led into the regeneration tower 18 again to release residual carbon dioxide and sulfur-containing compounds, the wet carbon dioxide gas is treated through a cooler 19 and a knockout 20 to obtain relatively dry carbon dioxide gas, and finally the relatively dry carbon dioxide gas is led into a detoxification device 22 for desulfurization treatment to capture CO 2 ；
(5) Introducing the rest gas into a pressure swing adsorption device 23, extracting part of hydrogen, pressurizing by a compressor 24, and storing the hydrogen in a hydrogen collection tank 25, wherein a plurality of adsorption tanks are filled with adsorbents in series; wherein, two or three pressure swing adsorption towers form a pressure swing adsorption device, and high-purity hydrogen is output after being pressurized, wherein 20-70% of H2 is recovered; the remaining gas is fed to the collection tank 26 as sulfur-free fuel gas and is then discharged to the outside.
The blast furnace gas raw material gas in the step (1) comprises the following components: 21% CO 2 25% CO, 3% H 2 50.39% N 2 0.002% water vapor, 0.5% O 2 0.002% H 2 S, 0.006% COS.
The water washing device in the step (1) is filled with a detergent, and the detergent is water.
The detoxification device in the step (2) contains a desulfurizing agent/dechlorinating agent, wherein the desulfurizing agent/dechlorinating agent consists of the following components in parts by mass: 6 parts of sodium carbonate, 1 part of sodium metavanadate, 1.8 parts of tannin extract and 991.2 parts of water.
The volume ratio of the blast furnace gas to the water vapor in the step (3) is 1:1.2, volume airspeed of 7000m 3 /(m 3 ·h)。
In the step (3), the first-stage adiabatic shift reaction furnace and the second-stage adiabatic shift reaction furnace are filled with catalysts, and the reaction conditions of the first-stage adiabatic shift reaction furnace are as follows: the inlet temperature is 300 ℃ and the pressure is 2.3MPa; reaction conditions of the second-stage adiabatic shift converter: the reaction temperature was 280℃and the pressure was 2.2MPa.
The carbon dioxide absorbent in the step (4) is sodium hydroxide aqueous solution.
The adsorbent in the step (5) is activated carbon.
The preparation method of the catalyst comprises the following steps:
s1, adding 8 parts of tungstate and 1.5 parts of molybdenum hexacarbonyl into 300 parts of 4.8M nitric acid aqueous solution at room temperature, stirring for 36 hours, adding 0.1 part of noble metal cation salt into the mixture, continuously reacting for 12 hours, centrifugally separating out precipitate at 8000r/min, washing with water for 3 times, and drying at 60 ℃ to obtain light yellow solid powder;
s2, heating the light yellow solid powder obtained in the step S1 in a vacuum environment at the temperature of 300 ℃ for 10 hours, and cooling to room temperature to obtain the noble metal loaded WMoO x A catalyst;
s3 WMoO carried by noble metal x The mass ratio of the catalyst to the polyethylene glycol is 1:10 mixing, wet ball milling to obtain emulsion, and sprayingOnto cordierite honeycomb ceramic carrier to form noble metal loaded WMoO x A catalyst transition layer;
s4, carrying out channel purging and drying at room temperature on the cordierite honeycomb ceramic carrier sprayed with the emulsion slurry in the step S3, and roasting at 600 ℃ for 3 hours to obtain the catalyst.
The tungstate is sodium tungstate.
The noble metal cation salt is platinum nitrate.
Said noble metal loaded WMoO x The weight of the catalyst transition layer accounts for 40 percent of the total weight of the honeycomb ceramic carrier.
Example 2
Based on example 1, we further improved the detoxification device 22,
the detoxification device for the hydrogen production of the blast furnace gas comprises a detoxification cavity 31, a transmission cavity 32, a cleaning cavity 33 and a rotating roller 52, wherein the rear side of the detoxification cavity 31 is sequentially connected with the transmission cavity 32 and the cleaning cavity 33, a desulfurization mechanism is arranged in the detoxification cavity 31 and is used for prolonging the path of the blast furnace gas passing through the detoxification cavity 31 and desulfurizing the blast furnace gas,
in this embodiment, the desulfurizing agent is one or a mixture of several of iron oxide, aluminum oxide, sodium carbonate, sodium metavanadate, tannin extract and water.
In this embodiment, the desulfurization mechanism includes: the device comprises baffle plates 41, rotating grooves 42, air outlet holes 43 and air inlet holes 44, wherein a plurality of baffle plates 41 which are uniformly distributed are arranged in the detoxification cavity 31 along the vertical direction, the air inlet holes 44 are arranged between the side wall of the detoxification cavity 31 and the baffle plates 41 at the top, the air outlet holes 43 are arranged between the side wall bottom of the detoxification cavity 31 opposite to the baffle plates 41 and the baffle plates 41 at the bottom, and the rotating grooves 42 are arranged between the top wall of the detoxification cavity 31 and the baffle plates 41 at the top, between any two adjacent baffle plates 41 and between the bottom wall of the detoxification cavity 31 and the baffle plates 41 at the bottom.
Through the baffle plate 41 arranged in the desulfurization mechanism, the blast furnace gas enters the detoxification cavity 31 from the air inlet hole 44, and sequentially passes through the baffle plates 41 and then is discharged from the air outlet hole 43, so that the blast furnace gas passes through a longer path in the detoxification cavity 31, the contact time of the blast furnace gas and the detoxification agent is prolonged, and the detoxification effect is good.
Further, it is desirable to further change the location and distribution of the detoxification agent within the detoxification cavity 31, further increasing the contact area of the blast furnace gas with the detoxification agent.
A plurality of rotating rollers 52 are arranged in the transmission cavity 32, the outside of the rotating rollers 52 is coated with a desulfurizing agent, two ends of the rotating rollers 52 respectively extend into the detoxification cavity 31 and the cleaning cavity 33, the transmission cavity 32 is used for switching the corresponding positions of the two ends of the rotating rollers 52 and the detoxification cavity 31 and the cleaning cavity 33 respectively,
the rotating roller 52 is disposed corresponding to the rotating groove 42, and the rotating roller 52 extends into the detoxification cavity 31 through the rotating groove 42.
By arranging the round rotating roller 52, the blast furnace gas in the detoxification cavity 31 is contacted with the semicircular rotating roller 52, and the curved surface design of the surface of the rotating roller 52 enables the contact area of the blast furnace gas and the detoxification agent to be larger, so that the detoxification effect is better.
In summary, in the embodiment 2, the path of the blast furnace gas in the detoxification cavity 31 is longer through the baffle plate 41 arranged in the desulfurization mechanism, so that the contact time of the blast furnace gas and the detoxification agent is increased; then, the surface of the rotating roller 52 is designed to ensure that the contact area of the blast furnace gas and the detoxication agent is larger, so that the desulfurization effect of the blast furnace gas is better.
Example 3
In examples 1 and 2, after the reaction of the blast furnace gas with the antidote, the sulfide is adsorbed on the outside of the antidote, which would affect the further use of the antidote, so we have a clean-up chamber 33 on the basis of example 2;
the cleaning device is characterized in that a liquid inlet hole 61, a liquid outlet hole 62 and a cleaning groove 63 are formed in the cleaning cavity 33, the liquid inlet hole 61 and the liquid outlet hole 62 are respectively formed in the top and the bottom of the cleaning cavity 33, a plurality of cleaning grooves 63 are formed in the cleaning cavity 33 corresponding to the rotating grooves 42, the rotating roller 52 extends into the cleaning cavity 33 through the cleaning grooves 63, a cleaning agent is arranged in the cleaning cavity 33, and the cleaning agent is an alkaline solution.
Preferably, the alkaline solution is most preferably calcium hydroxide solution, calcium sulfide generated by reaction with sulfide is precipitated in the cleaning cavity 33, other harmful reactants are not generated in the reaction, and the industrial requirement of calcium sulfide is extremely high, so that the effect of energy conservation and environment protection resource recycling is achieved.
In the present embodiment, the cleaning of the sulfide adsorbed on the outside of the detoxifier is achieved by the rotation of the rotating roller 52; one side of the two sides of the rotating roller 52 is always kept in the cleaning cavity 33, and the other side is in the detoxification cavity 31, so that when the blast furnace gas is introduced into the detoxification device 22, desulfurization treatment is carried out in the detoxification cavity 31, and sulfide cleaning is carried out in the cleaning cavity 33; the switching of the two sides of the rotating roller 52 can be realized by rotating the rotating roller 52; the detoxication agent can be used all the time without manual replacement, so that the use is more convenient, and the resource is saved.
Further, a sealing assembly is further disposed on the outer side of the rotating roller 52, the sealing assembly comprises a first retaining plate 94 and a second retaining plate 95, the first retaining plate 94 and the second retaining plate 95 are symmetrically connected to the center of the outer side of the rotating roller 52, the second retaining plate 95 is movably abutted against the inner wall of the detoxification cavity 31, and the first retaining plate 94 is movably abutted against the inner wall of the cleaning cavity 33.
In a natural state, the first retaining plate 94 is movably abutted against the inner wall of the cleaning chamber 33, and the second retaining plate 95 is movably abutted against the inner wall of the detoxification chamber 31; at this time, the detoxification cavity 31 and the cleaning cavity 33 are separated by the first retaining plate 94 and the second retaining plate 95, so that the sealing in the detoxification cavity 31 is realized, and the desulfurization effect of the blast furnace gas is good.
Example 4
On the basis of embodiment 3, a power mechanism is provided so that state switching of the rotating roller 52 is achieved.
A rotating shaft 51 is further arranged in the transmission cavity 32, two ends of the rotating shaft 51 are rotatably connected with the side wall of the transmission cavity 32, the outer side of the rotating shaft 51 is fixedly connected with a rotating roller 52, and two ends of the rotating shaft 51 extend out of the transmission cavity 32 and are connected with a power mechanism; the power mechanism comprises a transmission gear 81, a sliding seat 82 and transmission teeth 83, wherein the transmission gear 81 is fixedly connected to the two ends of the rotating shaft 51 extending out of the transmission cavity 32, the sliding seat 82 is arranged on the two outer side walls of the transmission cavity 32 corresponding to the transmission gear 81, the transmission teeth 83 are arranged on one side, close to the corresponding transmission gear 81, of the sliding seat 82, and the transmission teeth 83 are matched with the transmission gear 81 in a gear meshing mode; the limiting components are further disposed between the transmission gears 81 on both sides and the two outer side walls of the cleaning cavity 33, and the synchronizing components are further disposed between the top of the transmission gears 81 on both sides and the outer top wall of the transmission cavity 32.
In this embodiment, the synchronous movement of the plurality of rotating rollers 52 can be realized by the gear engagement of the plurality of transmission gears 81 with the transmission teeth 83 on the sliding seat 82, and the rotating rollers 52 are limited by the gear engagement, so that the locking effect is good.
Further, the synchronization assembly comprises a rotation pin 71, a pressing plate 72 and a U-shaped seat 73, the two ends of the pressing plate 72 and the top of the sliding seat 82 are fixedly connected with the U-shaped seat 73 together, the bottom of the U-shaped seat 73 is movably propped against the top of the transmission cavity 32, the top of the detoxification cavity 31 is rotatably connected with the rotation pin 71, the outer side of the rotation pin 71 is fixedly connected with the pressing plate 72, and the tail end of the pressing plate 72 is movably propped against the top of the U-shaped seat 73.
The limiting assembly comprises a limiting groove 91, a limiting key 92 and an extension spring 93, wherein the limiting groove 91 is formed in two outer side walls of the cleaning cavity 33, the limiting key 92 is arranged in the limiting groove 91 in a sliding mode, the limiting key 92 is fixedly connected with the sliding seat 82 correspondingly, the extension spring 93 is arranged between the bottom of the limiting key 92 and the bottom wall of the limiting groove 91, and the extension spring 93 keeps the limiting key 92 away from the bottom of the limiting groove 91.
Preferably, in the initial state, the bottom of the U-shaped seat 73 abuts against the top of the transmission cavity 32, the end of the pressing plate 72 abuts against the top of the U-shaped seat 73, the tension spring 93 keeps the limit key 92 away from the bottom of the limit groove 91, at this time, the second retaining plate 95 is located at the top and abuts against the inner wall of the detoxification cavity 31 by the relative position setting of the pressing plate 72 and the U-shaped seat 73, and the first retaining plate 94 is located at the bottom and abuts against the inner wall of the cleaning cavity 33, so as to realize the sealing in the detoxification cavity 31 by the synchronization component.
In this embodiment, the synchronous movement of the sliding seats 82 on two sides is realized through the U-shaped seat 73, so that the sliding seats 82 are more stable, when the rotating roller 52 is required to rotate, the pressing plate 72 can be rotated manually, so that the pressing plate 72 does not press the U-shaped seat 73 any more, then under the action of the tension spring 93, the sliding seats 82 on two ends drive the U-shaped seat 73 upwards, and further the synchronous rotation of the rotating roller 52 can be realized through the gear engagement of the transmission teeth 83 and the transmission gears 81, and the cleaning of the rotating roller 52 is realized.
Preferably, the device may be simply operated by manually pressing the U-shaped seat 73 against the top of the transmission cavity 32 and then rotating the pressing plate 72 to reset.
Claims (7)
1. A detoxication device for producing hydrogen by blast furnace gas comprises a detoxication cavity, and is characterized in that,
also comprises a transmission cavity, a cleaning cavity and a rotating roller,
the rear side of the detoxification cavity is sequentially connected with the transmission cavity and the cleaning cavity, a desulfurization mechanism is arranged in the detoxification cavity and is used for prolonging the path of the blast furnace gas passing through the detoxification cavity and desulfurizing the blast furnace gas,
the transmission cavity is internally provided with a plurality of rotating rollers, the outer sides of the rotating rollers are coated with desulfurizing agents, two ends of the rotating rollers respectively extend into the detoxification cavity and the cleaning cavity, and the transmission cavity is used for switching the positions of the two ends of the rotating rollers, which correspond to the detoxification cavity and the cleaning cavity, respectively;
the desulfurization mechanism includes: baffle plate, rotary groove, air outlet hole and air inlet hole,
a plurality of baffle plates which are uniformly distributed are arranged in the detoxification cavity along the vertical direction, the air inlet holes are arranged between the side wall of the detoxification cavity and the baffle plate at the top, the air outlet holes are arranged between the side wall bottom of the detoxification cavity opposite to the baffle plate at the bottom, the rotating grooves are arranged between the top wall of the detoxification cavity and the baffle plate at the top, between any two adjacent baffle plates and between the bottom wall of the detoxification cavity and the baffle plate at the bottom,
the rotating rollers are arranged corresponding to the rotating grooves, extend into the detoxification cavity through the rotating grooves, enable blast furnace gas to enter the detoxification cavity from the air inlet holes, pass through the rotating rollers sequentially through the baffle plates, and then are discharged from the air outlet holes;
the outside of the rotating roller is also provided with a sealing component which comprises a first retaining plate and a second retaining plate,
the outer side of the rotating roller is centrally and symmetrically connected with the first retaining plate and the second retaining plate, the second retaining plate is movably abutted against the inner wall of the detoxification cavity, and the first retaining plate is movably abutted against the inner wall of the cleaning cavity;
the transmission cavity is internally provided with a rotating shaft, two ends of the rotating shaft are rotationally connected with the side wall of the transmission cavity, the outer side of the rotating shaft is fixedly connected with a rotating roller, and two ends of the rotating shaft extend out of the transmission cavity and are connected with a power mechanism.
2. The detoxication device for producing hydrogen from blast furnace gas according to claim 1, wherein the desulfurizing agent is one or a mixture of more of iron oxide, aluminum oxide, sodium carbonate, sodium metavanadate, tannin extract and water.
3. The detoxification device for producing hydrogen by blast furnace gas according to claim 2, wherein the cleaning cavity is provided with a liquid inlet hole, a liquid outlet hole and a cleaning groove,
the cleaning device comprises a cleaning cavity, a liquid inlet hole, a liquid outlet hole, a plurality of cleaning grooves, a rotating roller, a cleaning agent and an alkaline solution, wherein the liquid inlet hole and the liquid outlet hole are formed in the top and the bottom of the cleaning cavity respectively, the cleaning grooves are formed in the cleaning cavity correspondingly, the rotating roller stretches into the cleaning cavity through the cleaning grooves, the cleaning agent is arranged in the cleaning cavity, and the alkaline solution is used as the cleaning agent.
4. A detoxication device for producing hydrogen from blast furnace gas according to claim 3, wherein the power mechanism comprises a transmission gear, a sliding seat and transmission teeth,
the two ends of the rotating shaft extending out of the transmission cavity are fixedly connected with transmission gears, the two outer side walls of the transmission cavity are respectively provided with a sliding seat corresponding to the transmission gears, one side, close to the corresponding transmission gears, of each sliding seat is provided with transmission teeth, and the transmission teeth are matched with the transmission gears in a gear meshing mode;
and a limiting component is further arranged between the transmission gear at two sides and two outer side walls of the cleaning cavity, and a synchronizing component is further arranged between the top of the transmission gear at two sides and the outer top wall of the transmission cavity.
5. A detoxication apparatus for producing hydrogen from blast furnace gas according to claim 4, wherein the synchronizing assembly comprises a rotation pin, a pressing plate and a U-shaped seat,
the two ends of the U-shaped seat are fixedly connected with the top of the sliding seat, the bottom of the U-shaped seat is movably propped against the top of the transmission cavity, the top of the detoxification cavity is rotatably connected with the rotating pin, the outer side of the rotating pin is fixedly connected with the pressing plate, and the tail end of the pressing plate is movably propped against the top of the U-shaped seat.
6. A detoxication device for producing hydrogen from blast furnace gas according to claim 5, wherein the limiting assembly comprises a limiting groove, a limiting key and a tension spring,
the utility model discloses a cleaning device, including cleaning cavity, spacing groove, limit key, extension spring keeps the spacing key has the trend of keeping away from spacing groove bottom, the spacing groove has all been seted up to two lateral walls of cleaning cavity, the spacing inslot slides and is provided with spacing key, both sides spacing key all with correspond sliding seat fixed connection, the bottom of spacing key with be provided with between the spacing groove diapire.
7. A process for producing hydrogen from blast furnace gas as claimed in any one of claims 1 to 6, comprising the steps of:
(1) Compressing raw gas of blast furnace gas by a compressor, and washing with water/alkali to obtain pretreated blast furnace gas;
(2) Compressing the pretreated blast furnace gas again, and carrying out detoxification treatment to obtain purified blast furnace gas;
(3) Mixing the purified blast furnace gas and water vapor, sending the mixture into an adiabatic shift converter, carrying out a change reaction on part of CO and water vapor to produce CO and H, carrying out heat recovery treatment after the reaction is finished, and then separating liquid through a cooler and a liquid separator to remove most of water vapor;
(4) Introducing the blast furnace gas subjected to liquid separation and washing treatment into an absorption tower, separating CO by using a carbon dioxide absorbent, treating by using a cooler and a liquid separator to obtain relatively dry carbon dioxide gas, and finally introducing into a detoxification device to carry out desulfurization treatment, and capturing CO;
(5) And introducing the rest gas into a pressure swing adsorption device, extracting part of hydrogen, pressurizing, storing the part of hydrogen as high-purity hydrogen in a high-purity hydrogen collecting tank, and outputting the rest gas as sulfur-free fuel gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211323256.7A CN115611235B (en) | 2022-10-26 | 2022-10-26 | Detoxication device for producing hydrogen by blast furnace gas and production process for producing hydrogen by blast furnace gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211323256.7A CN115611235B (en) | 2022-10-26 | 2022-10-26 | Detoxication device for producing hydrogen by blast furnace gas and production process for producing hydrogen by blast furnace gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115611235A CN115611235A (en) | 2023-01-17 |
| CN115611235B true CN115611235B (en) | 2024-03-29 |
Family
ID=84864863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211323256.7A Active CN115611235B (en) | 2022-10-26 | 2022-10-26 | Detoxication device for producing hydrogen by blast furnace gas and production process for producing hydrogen by blast furnace gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115611235B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701149A (en) * | 2012-06-07 | 2012-10-03 | 王揽月 | Water heat-transfer shift process for by-product high-grade steam energy-saving deep conversion |
| CN114591765A (en) * | 2022-03-08 | 2022-06-07 | 河北中科朗博环保科技有限公司 | Blast furnace gas fine desulfurization device and fine desulfurization method |
| CN115196590A (en) * | 2022-06-22 | 2022-10-18 | 上海富禧友好能源科技有限公司 | Process for co-producing hydrogen by capturing blast furnace gas carbon |
-
2022
- 2022-10-26 CN CN202211323256.7A patent/CN115611235B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701149A (en) * | 2012-06-07 | 2012-10-03 | 王揽月 | Water heat-transfer shift process for by-product high-grade steam energy-saving deep conversion |
| CN114591765A (en) * | 2022-03-08 | 2022-06-07 | 河北中科朗博环保科技有限公司 | Blast furnace gas fine desulfurization device and fine desulfurization method |
| CN115196590A (en) * | 2022-06-22 | 2022-10-18 | 上海富禧友好能源科技有限公司 | Process for co-producing hydrogen by capturing blast furnace gas carbon |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115611235A (en) | 2023-01-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112063422B (en) | Blast furnace gas desulfurization and sulfur resource utilization method and device | |
| CN102181308B (en) | Vacuum potassium carbonate coke oven gas desulfurization-sulfuric acid preparation process and processing system thereof | |
| CN109761192A (en) | A kind of producing hydrogen by using chemical chain | |
| CN205653162U (en) | System for sulphuric acid is prepared to sulphur waste liquid that contains that utilizes coal gas wet oxidation process to produce | |
| CN112708477B (en) | Method for improving combustion heat value of blast furnace gas and simultaneously removing organic sulfur and inorganic sulfur | |
| Wang et al. | Carbonyl sulfur removal from blast furnace gas: Recent progress, application status and future development | |
| CN100569638C (en) | Manufacture method of special-purpose active carbon for removing mercury and products thereof | |
| JP2000248286A (en) | Purification process for coke oven gas | |
| CN108970328B (en) | Device and process for treating high-sulfur waste gas in chemical industry and recovering sulfur | |
| CN115611235B (en) | Detoxication device for producing hydrogen by blast furnace gas and production process for producing hydrogen by blast furnace gas | |
| CN103952184B (en) | Catalytic coal gasifaction prepares the method and system of shaft furnace reducing gases | |
| CN105838449A (en) | System and method for catalytic purification treatment on coal chemical industry crude synthesis gas | |
| CN107537297B (en) | Clean and environment-friendly flue gas circulating desulfurization process | |
| CN101402020B (en) | Method for purifying arsenic hydride gas in industrial waste gas | |
| CN115196590B (en) | Process for co-production of hydrogen by capturing carbon in blast furnace gas | |
| CN203904284U (en) | System for preparing reducing gas for shaft furnace through catalysis and gasification of coal | |
| JP2633886B2 (en) | Desulfurizing agent and method for treating hydrogen sulfide-containing gas using it | |
| CN106635165A (en) | Method and device for preparing clean synthesized gas by gasifying carbon-containing raw material | |
| CN103316578B (en) | Method for absorbing sulfur dioxide and co-producing sulphur | |
| CN114955992B (en) | Production process for producing hydrogen by using blast furnace gas | |
| CN115231519B (en) | Environment-friendly blast furnace gas hydrogen production process | |
| CN110143572B (en) | H2Method and device for producing CO raw material gas | |
| CN115093886B (en) | Circulating moving bed process method and device for desulfurizing and dedusting gasified synthetic gas | |
| CN205152117U (en) | Adopt methyl alcohol production system of fluidized bed hot method absorption desulfuration purification synthetic gas | |
| CN115340887B (en) | Blast furnace gas fine desulfurization and sulfur recycling process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |