WO2021200674A1 - 水素供給システム - Google Patents
水素供給システム Download PDFInfo
- Publication number
- WO2021200674A1 WO2021200674A1 PCT/JP2021/012912 JP2021012912W WO2021200674A1 WO 2021200674 A1 WO2021200674 A1 WO 2021200674A1 JP 2021012912 W JP2021012912 W JP 2021012912W WO 2021200674 A1 WO2021200674 A1 WO 2021200674A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hydrogen
- unit
- dehydrogenation reaction
- gas
- line
- Prior art date
Links
- 239000001257 hydrogen Substances 0.000 title claims abstract description 148
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 148
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 145
- 238000006356 dehydrogenation reaction Methods 0.000 claims abstract description 111
- 239000007789 gas Substances 0.000 claims abstract description 62
- 239000002994 raw material Substances 0.000 claims abstract description 33
- 239000012530 fluid Substances 0.000 claims abstract description 30
- 150000004678 hydrides Chemical class 0.000 claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 11
- 150000002431 hydrogen Chemical class 0.000 abstract description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 141
- 239000007788 liquid Substances 0.000 description 45
- 238000000926 separation method Methods 0.000 description 33
- 238000000746 purification Methods 0.000 description 28
- UAEPNZWRGJTJPN-UHFFFAOYSA-N methylcyclohexane Chemical compound CC1CCCCC1 UAEPNZWRGJTJPN-UHFFFAOYSA-N 0.000 description 25
- 238000000034 method Methods 0.000 description 19
- 239000012528 membrane Substances 0.000 description 18
- 238000010438 heat treatment Methods 0.000 description 15
- 238000001179 sorption measurement Methods 0.000 description 13
- 239000003463 adsorbent Substances 0.000 description 12
- 239000003054 catalyst Substances 0.000 description 11
- 239000000047 product Substances 0.000 description 10
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 150000002894 organic compounds Chemical class 0.000 description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- QEGNUYASOUJEHD-UHFFFAOYSA-N 1,1-dimethylcyclohexane Chemical compound CC1(C)CCCCC1 QEGNUYASOUJEHD-UHFFFAOYSA-N 0.000 description 2
- NHCREQREVZBOCH-UHFFFAOYSA-N 1-methyl-1,2,3,4,4a,5,6,7,8,8a-decahydronaphthalene Chemical compound C1CCCC2C(C)CCCC21 NHCREQREVZBOCH-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- NNBZCPXTIHJBJL-UHFFFAOYSA-N decalin Chemical compound C1CCCC2CCCCC21 NNBZCPXTIHJBJL-UHFFFAOYSA-N 0.000 description 2
- IIEWJVIFRVWJOD-UHFFFAOYSA-N ethylcyclohexane Chemical compound CCC1CCCCC1 IIEWJVIFRVWJOD-UHFFFAOYSA-N 0.000 description 2
- 239000003502 gasoline Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- HUMCBDCARGDFNV-UHFFFAOYSA-N 1-ethyl-1,2,3,4,4a,5,6,7,8,8a-decahydronaphthalene Chemical compound C1CCCC2C(CC)CCCC21 HUMCBDCARGDFNV-UHFFFAOYSA-N 0.000 description 1
- FUUGBGSHEIEQMS-UHFFFAOYSA-N 4a,8a-dimethyl-1,2,3,4,5,6,7,8-octahydronaphthalene Chemical compound C1CCCC2(C)CCCCC21C FUUGBGSHEIEQMS-UHFFFAOYSA-N 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000007809 chemical reaction catalyst Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- HZFQGYWRFABYSR-UHFFFAOYSA-N cyclohexanone enol methyl ether Natural products COC1=CCCCC1 HZFQGYWRFABYSR-UHFFFAOYSA-N 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- GYNNXHKOJHMOHS-UHFFFAOYSA-N methyl-cycloheptane Natural products CC1CCCCCC1 GYNNXHKOJHMOHS-UHFFFAOYSA-N 0.000 description 1
- -1 naphtha Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920005597 polymer membrane Polymers 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 238000000629 steam reforming Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- PXXNTAGJWPJAGM-UHFFFAOYSA-N vertaline Natural products C1C2C=3C=C(OC)C(OC)=CC=3OC(C=C3)=CC=C3CCC(=O)OC1CC1N2CCCC1 PXXNTAGJWPJAGM-UHFFFAOYSA-N 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Images
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
- C01B3/22—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by decomposition of gaseous or liquid organic compounds
- C01B3/24—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by decomposition of gaseous or liquid organic compounds of hydrocarbons
- C01B3/26—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by decomposition of gaseous or liquid organic compounds of hydrocarbons using 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
- C01B2203/02—Processes for making hydrogen or synthesis gas
- C01B2203/025—Processes for making hydrogen or synthesis gas containing a partial oxidation step
- C01B2203/0261—Processes for making hydrogen or synthesis gas containing a partial oxidation step containing a catalytic partial oxidation step [CPO]
-
- 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
- C01B2203/04—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
- C01B2203/048—Composition of the impurity the impurity being an organic compound
-
- 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
- C01B2203/16—Controlling the process
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Definitions
- This disclosure relates to a hydrogen supply system that supplies hydrogen.
- Patent Document 1 As a conventional hydrogen supply system, for example, the one listed in Patent Document 1 is known.
- the hydrogen supply system of Patent Document 1 includes a tank for storing hydrides of aromatic hydrocarbons as a raw material, a dehydrogenation reaction unit for obtaining hydrogen by dehydrogenating the raw material supplied from the tank, and a dehydrogenation reaction.
- a gas-liquid separation unit for gas-liquid separation of the hydrogen obtained in the unit and a hydrogen purification unit for purifying the gas-liquid separated hydrogen are provided.
- the start-up time for starting the system is required the next time the production of the hydrogen-containing gas is restarted.
- Such startup time is required to be shortened.
- an inert gas such as nitrogen gas or a product hydrogen gas is circulated to the reformer. It may stand by (that is, no raw materials are added).
- a standby method is adopted in which the raw materials are put into the reformer.
- such a method has a problem that the reaction in the reforming part proceeds, resulting in loss of raw materials and generated hydrogen.
- the present disclosure has been made to solve the above problems, and an object of the present disclosure is to provide a hydrogen supply system capable of efficiently starting the system while suppressing the loss of raw materials and generated hydrogen.
- the hydrogen supply system is a hydrogen supply system that supplies hydrogen, and is a dehydrogenation reaction unit that obtains a hydrogen-containing gas by dehydrogenating a raw material containing a hydride.
- a circulation system that circulates a fluid that is inactive against the dehydrogenation reaction unit and a control unit that controls the hydrogen supply system are provided, and the control unit stops the production of hydrogen-containing gas in the dehydrogenation reaction unit. If so, the reaction-inactive fluid is circulated in the circulation system.
- the dehydrogenation reaction unit obtains a hydrogen-containing gas by dehydrogenating a raw material containing a hydride.
- the dehydrogenation reaction unit carries out a dehydrogenation reaction in a state where the catalyst is heated.
- the control unit circulates the reaction-inactive fluid in the circulatory system when the production of the hydrogen-containing gas in the dehydrogenation reaction unit is stopped.
- the dehydrogenation reaction unit can stand by while maintaining the temperature without performing the dehydrogenation reaction by passing a reaction-inactive fluid instead of the raw material. Since the dehydrogenation reaction unit does not perform the dehydrogenation reaction, it is possible to suppress the loss of raw materials and hydrogen. Further, by keeping the temperature of the dehydrogenation reaction in standby operation, the hydrogen supply system can be started quickly. From the above, the system can be started efficiently while suppressing the loss of raw materials and generated hydrogen.
- the circulation system may circulate the dehydrogenation product produced by the dehydrogenation reaction.
- the fluid generated in the dehydrogenation reaction unit can be used as it is as a fluid for circulation during standby.
- the circulatory system may circulate fluid from the outside. In this case, an appropriate amount of fluid can be circulated in the circulatory system.
- FIG. 1 is a block diagram showing a configuration of a hydrogen supply system according to an embodiment of the present disclosure.
- the hydrogen supply system 100 uses an organic compound (liquid at room temperature) as a raw material.
- the dehydrogenated product organic compound (liquid at room temperature)
- the organic compound as a raw material include organic hydride.
- a suitable example of the organic hydride is a hydride obtained by reacting hydrogen produced in large quantities in a refinery with an aromatic hydrocarbon.
- the organic hydride is not limited to aromatic hydrogenated compounds, but also has a 2-propanol system (hydrogen and acetone are produced).
- the organic hydride can be transported to the hydrogen supply system 100 as a liquid fuel by a tank lorry or the like like gasoline or the like.
- methylcyclohexane hereinafter referred to as MCH
- MCH methylcyclohexane
- hydrides of aromatic hydrocarbons such as cyclohexane, dimethylcyclohexane, ethylcyclohexane, decalin, methyldecalin, dimethyldecalin, and ethyldecalin can be applied as the organic hydride.
- the aromatic compound is a suitable example having a particularly high hydrogen content.
- the hydrogen supply system 100 can supply hydrogen to a fuel cell vehicle (FCV) or a hydrogen engine vehicle. It can also be applied to the production of hydrogen from natural gas containing methane as a main component, LPG containing propane as a main component, or liquid hydrocarbon raw materials such as gasoline, naphtha, kerosene, and light oil.
- FCV fuel cell vehicle
- the hydrogen supply system 100 includes a liquid transfer pump 1, a heat exchange unit 2, a dehydrogenation reaction unit 3, a heating unit 4, a gas-liquid separation unit 6, a compression unit 7, and hydrogen.
- the purification unit 8 is provided.
- the liquid transfer pump 1, the heat exchange unit 2, and the dehydrogenation reaction unit 3 belong to the hydrogen production unit 10 that produces a hydrogen-containing gas.
- the gas-liquid separation unit 6, the compression unit 7, and the hydrogen purification unit 8 belong to the hydrogen purity adjusting unit 11 that enhances the purity of hydrogen.
- the hydrogen supply system 100 includes lines L1 to L12.
- Lines L1 to L12 are channels through which MCH, toluene, hydrogen-containing gas, off-gas, high-purity hydrogen, or a heating medium passes.
- the line L1 is a line for the liquid transfer pump 1 to pump up the MCH from the MCH tank (not shown), and connects the liquid transfer pump 1 and the MCH tank.
- the line L2 connects the liquid transfer pump 1 and the dehydrogenation reaction unit 3.
- the line L3 connects the dehydrogenation reaction unit 3 and the gas-liquid separation unit 6.
- the line L4 connects the gas-liquid separation unit 6 and a toluene tank (not shown).
- the line L5 connects the gas-liquid separation unit 6 and the compression unit 7.
- the line L6 connects the compression unit 7 and the hydrogen purification unit 8.
- the line L7 connects the hydrogen purification unit 8 and the off-gas supply destination.
- the line L8 connects the hydrogen purification unit 8 and a purification gas supply device (not shown).
- the lines L11 and L12 connect the heating unit 4 and the dehydrogenation reaction unit 3.
- the lines L11 and L12 circulate a heat medium.
- the liquid transfer pump 1 supplies the raw material MCH to the dehydrogenation reaction unit 3.
- the MCH transported from the outside by a tank lorry or the like is stored in the MCH tank.
- the MCH stored in the MCH tank is supplied to the dehydrogenation reaction unit 3 via the lines L1 and L2 by the liquid transfer pump 1.
- the heat exchange unit 2 exchanges heat between the MCH flowing through the line L2 and the hydrogen-containing gas flowing through the line L3.
- the hydrogen-containing gas emitted from the dehydrogenation reaction unit 3 has a higher temperature than the MCH. Therefore, in the heat exchange unit 2, the MCH is heated by the heat of the hydrogen-containing gas. As a result, the MCH is supplied to the dehydrogenation reaction unit 3 in a state where the temperature has risen.
- the MCH is supplied to the dehydrogenation reaction unit 3 together with the off-gas supplied from the hydrogen purification unit 8 via the line L7.
- the dehydrogenation reaction unit 3 is a device that obtains hydrogen by dehydrogenating MCH. That is, the dehydrogenation reaction unit 3 is a device that extracts hydrogen from the MCH by a dehydrogenation reaction using a dehydrogenation catalyst.
- the dehydrogenation catalyst is not particularly limited, and is selected from, for example, a platinum catalyst, a palladium catalyst, and a nickel catalyst. These catalysts may be supported on carriers such as alumina, silica and titania.
- the reaction of organic hydride is a reversible reaction, and the direction of the reaction changes depending on the reaction conditions (temperature, pressure) (subject to chemical equilibrium).
- the dehydrogenation reaction is a reaction in which the number of molecules increases due to an endothermic reaction. Therefore, high temperature and low pressure conditions are advantageous. Since the dehydrogenation reaction is an endothermic reaction, the dehydrogenation reaction unit 3 is supplied with heat from the heating unit 4 via a heat medium circulating in the lines L11 and L12. The dehydrogenation reaction unit 3 has a mechanism capable of heat exchange between the MCH flowing in the dehydrogenation catalyst and the heat medium from the heating unit 4.
- the hydrogen-containing gas taken out by the dehydrogenation reaction unit 3 is supplied to the gas-liquid separation unit 6 via the line L3.
- the hydrogen-containing gas of line L3 is supplied to the gas-liquid separation unit 6 in a state of containing toluene, which is a liquid, as a mixture.
- the heating unit 4 heats the heat medium and supplies the heat medium to the dehydrogenation reaction unit 3 via the line L11.
- the heat medium after heating is returned to the heating unit 4 via the line L12.
- the heat medium is not particularly limited, but oil or the like may be adopted.
- the heating unit 4 any one may be used as long as it can heat the dehydrogenation reaction unit 3.
- the heating unit 4 may directly heat the dehydrogenation reaction unit 3, or may heat the MCH supplied to the dehydrogenation reaction unit 3 by heating the line L2, for example.
- the heating unit 4 may heat both the dehydrogenation reaction unit 3 and the MCH supplied to the dehydrogenation reaction unit 3.
- a burner or an engine can be adopted as the heating unit 4.
- the gas-liquid separation unit 6 is a tank that separates toluene from the hydrogen-containing gas.
- the gas-liquid separation unit 6 separates hydrogen as a gas and toluene as a liquid by storing a hydrogen-containing gas containing toluene as a mixture. Further, the hydrogen-containing gas supplied to the gas-liquid separation unit 6 is cooled by the heat exchange unit 2.
- the gas-liquid separation unit 6 may be cooled by a cooling medium from a cold heat source. In this case, the gas-liquid separation unit 6 has a mechanism capable of exchanging heat between the hydrogen-containing gas in the gas-liquid separation unit 6 and the cooling medium from the cold heat source.
- the toluene separated by the gas-liquid separation unit 6 is supplied to a toluene tank (not shown) via the line L4.
- the hydrogen-containing gas separated by the gas-liquid separation unit 6 is supplied to the hydrogen purification unit 8 via the lines L5 and L6 by the pressure of the compression unit 7.
- the hydrogen-containing gas is cooled, a part of the gas (toluene) is liquefied and can be separated from the non-liquefied gas (hydrogen) by the gas-liquid separation unit 6.
- the hydrogen purification unit 8 removes the dehydrogenation product (toluene in the present embodiment) from the hydrogen-containing gas obtained in the dehydrogenation reaction unit 3 and separated in the gas-liquid separation unit 6. As a result, the hydrogen purification unit 8 purifies the hydrogen-containing gas to obtain high-purity hydrogen (purified gas). The obtained purified gas is supplied to line L8. The off-gas generated in the hydrogen purification unit 8 is supplied to the dehydrogenation reaction unit 3 via the line L7.
- the hydrogen purification unit 8 differs depending on the hydrogen purification method adopted. Specifically, when membrane separation is used as the hydrogen purification method, the hydrogen purification unit 8 is a hydrogen separation device including a hydrogen separation membrane. When the PSA (Pressure swing attachment) method or the TSA (Temperature swing attachment) method is used as the hydrogen purification method, the hydrogen purification unit 8 is provided with a plurality of adsorption towers for adsorbing impurities. It is a device.
- the hydrogen purification unit 8 uses membrane separation.
- dehydrogenation products are removed by permeating a film heated to a predetermined temperature with a hydrogen-containing gas pressurized to a predetermined pressure by a compression unit (not shown) to remove high-purity hydrogen gas (not shown).
- Purified gas can be obtained.
- the pressure of the gas permeating the membrane is lower than the pressure before permeating the membrane.
- the pressure of the gas that did not permeate the membrane is substantially the same as the predetermined pressure before permeating the membrane. At this time, the gas that did not permeate the membrane corresponds to the off-gas of the hydrogen purification unit 8.
- the type of membrane applied to the hydrogen purification unit 8 is not particularly limited, and is a porous membrane (separated by molecular flow, separated by surface diffusion flow, separated by capillary condensing action, separated by molecular sieving action). , Etc.) and non-porous membranes can be applied.
- the membrane applied to the hydrogen purification unit 8 include a metal membrane (PbAg-based, PdCu-based, Nb-based, etc.), a zeolite membrane, an inorganic membrane (silica membrane, carbon membrane, etc.), and a polymer membrane (polyimide membrane, etc.). Can be adopted.
- the adsorbent used in the PSA method has the property of adsorbing toluene contained in the hydrogen-containing gas under high pressure and desorbing the adsorbed toluene under low pressure.
- the PSA method utilizes such properties of the adsorbent. That is, by increasing the pressure inside the adsorption tower, toluene contained in the hydrogen-containing gas is adsorbed on the adsorbent and removed to obtain a high-purity hydrogen gas (purified gas).
- the toluene adsorbed on the adsorbent was desorbed by lowering the pressure inside the adsorption tower, and a part of the purified gas removed at the same time was backflowed to desorb the toluene.
- the adsorption function of the adsorbent is regenerated.
- the hydrogen-containing gas containing at least hydrogen and toluene discharged by removing toluene from the adsorption tower corresponds to the off-gas from the hydrogen purification unit 8.
- the adsorbent used in the TSA method has the property of adsorbing toluene contained in the hydrogen-containing gas at room temperature and desorbing the adsorbed toluene at high temperature.
- the TSA method utilizes such properties of the adsorbent. That is, by keeping the inside of the adsorption tower at room temperature, toluene contained in the hydrogen-containing gas is adsorbed on the adsorbent and removed to obtain a high-purity hydrogen gas (purified gas).
- the toluene adsorbed on the adsorbent is desorbed by raising the temperature inside the adsorption tower, and a part of the removed high-purity hydrogen is backflowed to desorb the toluene.
- the adsorption function of the adsorbent is regenerated.
- the hydrogen-containing gas containing at least hydrogen and toluene discharged by removing toluene from the adsorption tower corresponds to the off-gas from the hydrogen purification unit 8.
- FIG. 2 is a block diagram showing the contents of operation of the hydrogen supply system 100 in a normal operation state.
- FIG. 3 is a block diagram showing the contents of the operation of the hydrogen supply system 100 in the standby state.
- the hydrogen supply system 100 includes a circulatory system 40 and a control unit 50.
- the circulatory system 40 is a system that circulates a fluid that is inactive against the dehydrogenation reaction unit 3.
- the reaction-inactive fluid is a fluid that hardly reacts with the dehydrogenation catalyst in the dehydrogenation reaction unit 3.
- the circulatory system 40 includes a line L20 extending from the middle position of the line L4 to the middle position of the line L1.
- the upstream side from the connection point with the line L20 is referred to as a first portion L4a
- the downstream side from the connection point is referred to as a second portion L4b.
- the upstream side from the connection point with the line L20 is referred to as a first portion L1a
- the downstream side from the connection point is referred to as a second portion L1b.
- the circulatory system 40 is composed of a line L20, a second portion L1b of the line L1, a line L2, a line L3, and a first portion L4a of the line L4.
- a valve 21 is provided in the first portion L1a of the line L1.
- the valve 21 switches between supplying and stopping the supply of the raw material to the dehydrogenation reaction unit 3 by switching the opening and closing.
- a valve 22 is provided in the second portion L4b of the line L4.
- the valve 22 switches between discharging and stopping the discharge of toluene from the gas-liquid separation unit 6 by switching the opening and closing.
- a valve 23 is provided on the line L5.
- the valve 23 switches between supplying and stopping the supply of hydrogen-containing gas from the gas-liquid separation unit 6 to the downstream side.
- a valve 24 is provided on the line L20. The valve 24 switches between supplying and stopping the supply of the reaction-inactive fluid to the dehydrogenation reaction unit 3 by switching the opening and closing.
- the circulation system 40 circulates toluene (dehydrogenation product) produced by the dehydrogenation reaction. That is, the circulatory system 40 circulates toluene after the dehydrogenation reaction by the dehydrogenation reaction unit 3 is completed and separated by the gas-liquid separation unit 6. Since the toluene is produced from the raw material by a dehydrogenation reaction, even if it is supplied to the dehydrogenation reaction unit 3 again, the dehydrogenation reaction does not occur in the dehydrogenation reaction unit 3. When a small amount of raw material remains in toluene, the raw material causes a dehydrogenation reaction, but in the present specification, toluene in which a small amount of raw material remains is also treated as a reaction-inactive fluid.
- control unit 50 controls the circulation system 40 so as to circulate the reaction-inactive fluid.
- the control unit 50 is electrically connected to the valves 21, 22, 23, 24.
- the control unit 50 controls the flow of the fluid in the hydrogen supply system 100 by transmitting a signal for switching the opening and closing to the valves 21, 22, 23, and 24.
- the control unit 50 opens the valve 21 of the line L1, opens the valve 22 of the line L4, opens the valve 23 of the line L5, and opens the line.
- the valve 24 of L20 is closed.
- the raw material flows through the first portion L1a of the line L1, flows through the second portion L1b of the line L1, and is supplied to the dehydrogenation reaction unit 3 via the liquid transfer pump 1 and the line L2. (See F1).
- the hydrogen-containing gas generated in the dehydrogenation reaction unit 3 flows through the line L3 and is supplied to the gas-liquid separation unit 6.
- the toluene separated by the gas-liquid separation unit 6 is discharged through the line L4 (see F2).
- the hydrogen-containing gas from which toluene has been separated by the gas-liquid separation unit 6 is supplied to the downstream side via the line L5 (see F3). At this time, since the valve 24 of the line L20 is closed, toluene does not flow through the line L20 and is not supplied to the dehydrogenation reaction unit 3. As described above, the toluene produced in the dehydrogenation reaction unit 3 is discharged from the gas-liquid separation unit 6 without being circulated in the circulation system 40.
- the dehydrogenation reaction is also stopped.
- the standby state is set so that the dehydrogenation reaction in the dehydrogenation reaction unit 3 can be restarted promptly.
- the control unit 50 closes the valve 21 of the line L1, closes the valve 22 of the line L4, closes the valve 23 of the line L5, and closes the valve 24 of the line L20. To open. As a result, the raw material from the first portion L1a of the line L1 is restricted from passing by the valve 21.
- the toluene separated by the gas-liquid separation unit 6 is restricted from passing by the valve 22 at the second portion L4b of the line L4, and passes through the line L20 from the first portion L4a of the line L4 (see F5). .. Then, toluene passes from the line L20 through the second portion L1b of the line L1 and is supplied to the dehydrogenation reaction unit 3 via the liquid transfer pump 1 and the line L2 (see F6). Toluene is heated by the influence of the heat medium from the heating unit 4 (see FIG. 1).
- the heated toluene does not react in the dehydrogenation reaction unit 3, but passes through in a state where the temperature drop of the dehydrogenation catalyst in the dehydrogenation reaction unit 3 is suppressed.
- Toluene leaving the dehydrogenation reaction section 3 flows through the line L3, the gas-liquid separation section 6, and the first portion L4a of the line L4, and repeatedly circulates in the circulatory system 40.
- the control unit 50 brings the valves 21, 22, 23, 24 so as to be in the state shown in FIG. Switch the opening and closing of. At this time, since the temperature drop of the dehydrogenation reaction catalyst of the dehydrogenation reaction unit 3 was suppressed during standby, the dehydrogenation reaction can be restarted quickly.
- the hydrogen supply system according to the comparative example will be described.
- the raw material is supplied to the dehydrogenation reaction unit 3 even in the standby state to suppress the temperature drop of the dehydrogenation catalyst.
- the reaction in the dehydrogenation reaction unit 3 proceeds, resulting in loss of raw materials and generated hydrogen.
- the dehydrogenation reaction unit 3 obtains a hydrogen-containing gas by dehydrogenating a raw material containing a hydride.
- the dehydrogenation reaction unit 3 performs a dehydrogenation reaction in a state where the catalyst is heated.
- the control unit 50 circulates the reaction-inactive fluid in the circulation system 40.
- the dehydrogenation reaction unit 3 can stand by while maintaining the temperature without performing the dehydrogenation reaction by passing a reaction-inactive fluid instead of the raw material.
- the dehydrogenation reaction unit 3 does not carry out the dehydrogenation reaction, it is possible to suppress the loss of raw materials and hydrogen. Further, by keeping the temperature of the dehydrogenation reaction in standby operation, the hydrogen supply system 100 can be started quickly. From the above, the system can be started efficiently while suppressing the loss of raw materials and generated hydrogen.
- the circulation system 40 may circulate the dehydrogenation product produced by the dehydrogenation reaction.
- the fluid generated by the dehydrogenation reaction unit 3 can be used as it is as a circulating fluid during standby.
- the circulatory system 40 may circulate a fluid from the outside.
- a reaction-inactive fluid from the outside may be supplied from the line L30 connected to the line L1 and the fluid may be circulated in the circulation system 40.
- an appropriate amount of fluid can be circulated in the circulatory system. That is, when the dehydrogenation product is circulated as in the above-described embodiment, how much fluid is used to circulate the dehydrogenation product existing in the line when the dehydrogenation reaction is stopped. It is difficult to control whether it can be circulated. On the other hand, when the fluid is supplied from the outside, the circulation amount can be easily controlled.
- the hydrogen station for FVC is illustrated as the hydrogen supply system, but it may be a hydrogen supply system for a distributed power source such as a household power source or an emergency power source, for example.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Inorganic Chemistry (AREA)
- Hydrogen, Water And Hydrids (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
Description
Claims (3)
- 水素の供給を行う水素供給システムであって、
水素化物を含む原料を脱水素反応させることによって水素含有ガスを得る脱水素反応部と、
前記脱水素反応部に対して反応不活性な流体を循環させる循環系と、
前記水素供給システムを制御する制御部と、を備え、
前記制御部は、前記脱水素反応部での前記水素含有ガスの生成を停止する場合、前記循環系にて前記反応不活性な流体を循環させる、水素供給システム。 - 前記循環系は、前記脱水素反応により生成された脱水素生成物を循環させる、請求項1に記載の水素供給システム。
- 前記循環系は、外部からの流体を循環させる、請求項1に記載の水素供給システム。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP21780356.8A EP4129891A4 (en) | 2020-03-30 | 2021-03-26 | HYDROGEN SUPPLY SYSTEM |
CN202180025550.7A CN115362126B (zh) | 2020-03-30 | 2021-03-26 | 氢供给系统 |
US17/914,939 US20230111727A1 (en) | 2020-03-30 | 2021-03-26 | Hydrogen supply system |
AU2021247882A AU2021247882B2 (en) | 2020-03-30 | 2021-03-26 | Hydrogen supply system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020060427A JP2021155313A (ja) | 2020-03-30 | 2020-03-30 | 水素供給システム |
JP2020-060427 | 2020-03-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2021200674A1 true WO2021200674A1 (ja) | 2021-10-07 |
Family
ID=77919419
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2021/012912 WO2021200674A1 (ja) | 2020-03-30 | 2021-03-26 | 水素供給システム |
Country Status (6)
Country | Link |
---|---|
US (1) | US20230111727A1 (ja) |
EP (1) | EP4129891A4 (ja) |
JP (1) | JP2021155313A (ja) |
CN (1) | CN115362126B (ja) |
AU (1) | AU2021247882B2 (ja) |
WO (1) | WO2021200674A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2022088922A (ja) * | 2020-12-03 | 2022-06-15 | Eneos株式会社 | 水素供給システム |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004307300A (ja) * | 2003-04-10 | 2004-11-04 | Toyota Motor Corp | 貯留タンク及び水素ガス生成装置 |
JP2006232607A (ja) | 2005-02-24 | 2006-09-07 | Japan Energy Corp | 水素製造方法 |
JP2006257906A (ja) * | 2005-03-15 | 2006-09-28 | Toyota Motor Corp | 水素利用内燃機関 |
JP2015227255A (ja) * | 2014-05-30 | 2015-12-17 | Jx日鉱日石エネルギー株式会社 | 水素供給システム |
JP2017081790A (ja) * | 2015-10-29 | 2017-05-18 | 株式会社日立製作所 | 脱水素システム及び脱水素システムの運転停止方法 |
JP2017100903A (ja) * | 2015-11-30 | 2017-06-08 | Jxtgエネルギー株式会社 | 水素製造システム及び水素製造方法 |
JP2018052768A (ja) * | 2016-09-28 | 2018-04-05 | 富士電機株式会社 | 水素製造システム起動方法及び水素製造システム |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6497856B1 (en) * | 2000-08-21 | 2002-12-24 | H2Gen Innovations, Inc. | System for hydrogen generation through steam reforming of hydrocarbons and integrated chemical reactor for hydrogen production from hydrocarbons |
US7309480B2 (en) * | 2004-04-16 | 2007-12-18 | H2Gen Innovations, Inc. | Catalyst for hydrogen generation through steam reforming of hydrocarbons |
DE102005044926B3 (de) * | 2005-09-20 | 2007-01-25 | Eads Deutschland Gmbh | Vorrichtung zur Erzeugung von Wasserstoffgas durch Dehydrogenierung von Kohlenwasserstoff-Brennstoffen |
DE102006029790A1 (de) * | 2006-06-27 | 2008-01-03 | Basf Ag | Verfahren der kontinuierlichen heterogen katalysierten partiellen Dehydrierung wenigstens eines zu dehydrierenden Kohlenwasserstoffs |
FR2952646B1 (fr) * | 2009-11-13 | 2012-09-28 | Inst Francais Du Petrole | Procede de production de carburants kerosene et diesel de haute qualite et de coproduction d'hydrogene a partir de coupes saturees legeres |
CN103664455B (zh) * | 2012-09-05 | 2015-09-09 | 中国石油化工股份有限公司 | 丙烯的制备方法 |
JP2015227256A (ja) * | 2014-05-30 | 2015-12-17 | Jx日鉱日石エネルギー株式会社 | 水素供給システム |
JP2016040218A (ja) * | 2014-08-13 | 2016-03-24 | Jx日鉱日石エネルギー株式会社 | 脱水素化システム、及び脱水素化システムの運転方法 |
-
2020
- 2020-03-30 JP JP2020060427A patent/JP2021155313A/ja active Pending
-
2021
- 2021-03-26 AU AU2021247882A patent/AU2021247882B2/en active Active
- 2021-03-26 WO PCT/JP2021/012912 patent/WO2021200674A1/ja unknown
- 2021-03-26 US US17/914,939 patent/US20230111727A1/en active Pending
- 2021-03-26 EP EP21780356.8A patent/EP4129891A4/en active Pending
- 2021-03-26 CN CN202180025550.7A patent/CN115362126B/zh active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004307300A (ja) * | 2003-04-10 | 2004-11-04 | Toyota Motor Corp | 貯留タンク及び水素ガス生成装置 |
JP2006232607A (ja) | 2005-02-24 | 2006-09-07 | Japan Energy Corp | 水素製造方法 |
JP2006257906A (ja) * | 2005-03-15 | 2006-09-28 | Toyota Motor Corp | 水素利用内燃機関 |
JP2015227255A (ja) * | 2014-05-30 | 2015-12-17 | Jx日鉱日石エネルギー株式会社 | 水素供給システム |
JP2017081790A (ja) * | 2015-10-29 | 2017-05-18 | 株式会社日立製作所 | 脱水素システム及び脱水素システムの運転停止方法 |
JP2017100903A (ja) * | 2015-11-30 | 2017-06-08 | Jxtgエネルギー株式会社 | 水素製造システム及び水素製造方法 |
JP2018052768A (ja) * | 2016-09-28 | 2018-04-05 | 富士電機株式会社 | 水素製造システム起動方法及び水素製造システム |
Non-Patent Citations (1)
Title |
---|
See also references of EP4129891A4 |
Also Published As
Publication number | Publication date |
---|---|
CN115362126B (zh) | 2023-07-28 |
EP4129891A4 (en) | 2024-05-01 |
CN115362126A (zh) | 2022-11-18 |
AU2021247882B2 (en) | 2024-10-10 |
US20230111727A1 (en) | 2023-04-13 |
JP2021155313A (ja) | 2021-10-07 |
AU2021247882A1 (en) | 2022-11-24 |
EP4129891A1 (en) | 2023-02-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9112201B2 (en) | Hydrogen production apparatus, fuel cell system and operation method thereof | |
JP5864393B2 (ja) | 水素供給システム | |
JP6566639B2 (ja) | 水素製造装置の運転方法および水素製造装置 | |
JP2016084272A (ja) | 水素ガス製造方法及び水素ガス製造装置 | |
JP2014073922A (ja) | 水素供給システム | |
WO2021200674A1 (ja) | 水素供給システム | |
JP2016000675A (ja) | 水素製造装置およびその運転方法 | |
JP2015227255A (ja) | 水素供給システム | |
WO2021193740A1 (ja) | 水素供給システム | |
WO2022118636A1 (ja) | 水素供給システム | |
JP2015227256A (ja) | 水素供給システム | |
WO2021200727A1 (ja) | 水素供給システム | |
WO2021193767A1 (ja) | 水素供給システム | |
WO2021200665A1 (ja) | 水素供給システム | |
JP2016040218A (ja) | 脱水素化システム、及び脱水素化システムの運転方法 | |
JP6236354B2 (ja) | 水素供給システム | |
WO2014157133A1 (ja) | 水素供給システムの運転方法、水素供給設備及び水素供給システム | |
JP6198677B2 (ja) | 水素供給システム | |
WO2023181860A1 (ja) | 改質処理装置 | |
JP2015224184A (ja) | 水素供給システム | |
JP2002166122A (ja) | 水素の精製、貯蔵方法 | |
JP6646526B2 (ja) | 水素ガス製造方法及び水素ガス製造装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21780356 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2021780356 Country of ref document: EP Effective date: 20221031 |
|
ENP | Entry into the national phase |
Ref document number: 2021247882 Country of ref document: AU Date of ref document: 20210326 Kind code of ref document: A |