JP6305341B2 - 燃料電池中でのメタン水蒸気改質用の触媒組成物 - Google Patents
燃料電池中でのメタン水蒸気改質用の触媒組成物 Download PDFInfo
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- JP6305341B2 JP6305341B2 JP2014540595A JP2014540595A JP6305341B2 JP 6305341 B2 JP6305341 B2 JP 6305341B2 JP 2014540595 A JP2014540595 A JP 2014540595A JP 2014540595 A JP2014540595 A JP 2014540595A JP 6305341 B2 JP6305341 B2 JP 6305341B2
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- catalyst
- catalyst composition
- component
- aluminum oxide
- aluminum
- Prior art date
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- 239000003054 catalyst Substances 0.000 title claims description 81
- 239000000203 mixture Substances 0.000 title claims description 53
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims description 32
- 239000000446 fuel Substances 0.000 title claims description 13
- 238000000629 steam reforming Methods 0.000 title claims description 8
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 34
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 26
- 239000002245 particle Substances 0.000 claims description 20
- 239000007787 solid Substances 0.000 claims description 18
- 238000002407 reforming Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 15
- 229910052782 aluminium Inorganic materials 0.000 claims description 13
- 229910052759 nickel Inorganic materials 0.000 claims description 12
- 239000000843 powder Substances 0.000 claims description 12
- 239000008188 pellet Substances 0.000 claims description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 239000006185 dispersion Substances 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 8
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 8
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 7
- 229910052726 zirconium Inorganic materials 0.000 claims description 7
- 238000001354 calcination Methods 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 5
- 239000000314 lubricant Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 239000006069 physical mixture Substances 0.000 claims description 5
- MXRIRQGCELJRSN-UHFFFAOYSA-N O.O.O.[Al] Chemical compound O.O.O.[Al] MXRIRQGCELJRSN-UHFFFAOYSA-N 0.000 claims description 4
- -1 aluminum compound Chemical class 0.000 claims description 4
- 239000007858 starting material Substances 0.000 claims description 4
- 239000006057 Non-nutritive feed additive Substances 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000007596 consolidation process Methods 0.000 claims description 2
- 239000008187 granular material Substances 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 230000033444 hydroxylation Effects 0.000 claims 1
- 238000005805 hydroxylation reaction Methods 0.000 claims 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000010304 firing Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000006555 catalytic reaction Methods 0.000 description 4
- 230000009849 deactivation Effects 0.000 description 4
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- 239000011148 porous material Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- VXAUWWUXCIMFIM-UHFFFAOYSA-M aluminum;oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Al+3] VXAUWWUXCIMFIM-UHFFFAOYSA-M 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000003487 electrochemical reaction Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 229940043774 zirconium oxide Drugs 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 229910010093 LiAlO Inorganic materials 0.000 description 2
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 2
- 229910001413 alkali metal ion Inorganic materials 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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- 238000001125 extrusion Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 2
- 231100000572 poisoning Toxicity 0.000 description 2
- 230000000607 poisoning effect Effects 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 229910001414 potassium ion Inorganic materials 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001928 zirconium oxide Inorganic materials 0.000 description 2
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001339 alkali metal compounds Chemical class 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 229910001680 bayerite Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910001593 boehmite Inorganic materials 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- NKCVNYJQLIWBHK-UHFFFAOYSA-N carbonodiperoxoic acid Chemical compound OOC(=O)OO NKCVNYJQLIWBHK-UHFFFAOYSA-N 0.000 description 1
- 238000001193 catalytic steam reforming Methods 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000010908 decantation Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 229910001679 gibbsite Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000008241 heterogeneous mixture Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000002356 laser light scattering Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 1
- 229910052808 lithium carbonate Inorganic materials 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 235000019359 magnesium stearate Nutrition 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910001960 metal nitrate Inorganic materials 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000010414 supernatant solution Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
- C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
- C01B3/38—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts
- C01B3/40—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts characterised by the catalyst
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- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
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- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
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- C—CHEMISTRY; METALLURGY
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- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
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- H—ELECTRICITY
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
- H01M8/0612—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
- H01M8/0618—Reforming processes, e.g. autothermal, partial oxidation or steam reforming
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- 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
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
- Fuel Cell (AREA)
- Hydrogen, Water And Hydrids (AREA)
Description
CO + H2O → CO2 + H2 (2)
アルカリ金属化合物(例えば、KOH、NaOHまたはLiOH)の形の電解質の一部の気化が認められる。これらのアルカリ金属イオンが、冒頭に述べた改質触媒上に付着して望まざる被毒を引き起こし、その活性を低下させることがある。
c)この固体の分離と乾燥;
d)必要なら、この固体の焼成;
e)必要なら、この固体の圧密化;
f)この固体のある均一な粒度への粉砕
g)この固体と成分b)の均一な混合。
−前処理粉末の前圧縮と打錠でのペレット形成、
−液体との混合と、混錬/パンミル粉砕、押し出しによる棒状押出物の形成。
420gの、均一なニッケルとアルミニウムとジルコニウム酸化物混合物からなる焼成粉末(BET表面積=160m2/g、NiO=72質量%、Al2O3=19質量%、ZrO2=9質量%、d50=137μm)を改質−活性な相(成分a)として用いた。180gの、γ−Al2O3とδ−Al2O3とθ−Al2O3を含む酸化アルミニウム粉末(BET=126m2/g、d50=116μm、サソールドイツ社)を成分b)として用いた。次いで、この混合粉末物を3質量%のグラファイトと混合し、ドラムフープミキサー(J. エンゲルスマン社)により良く混合した。このようにして得られた混合物をコンパクターで圧縮し、次いで水圧偏心式プレス(キリアンSP300、キリアン社)で処理して固体ペレット(直径=2.5mm;高さ=2.5mm)を得た(全体としての触媒の酸化物組成:50.4質量%のNiO、43.65質量%のAl2O3、5.95質量%のZrO2)。
500gの同じニッケルとアルミニウムとジルコニウムの酸化物からなる焼成粉末(BET表面積=160m2/g、NiO=72質量%、Al2O3=19質量%、ZrO2=9質量%)を用いて比較用触媒を製造した。この粉末を3質量%のグラファイトと混合し、ドラムフープミキサー(J.エンゲルスマン社)により良く混合した。このようにして得られた混合物をコンパクターで圧縮し、次いで水圧偏心式プレス(キリアンSP300、キリアン社)で処理して固体ペレット(直径=2.5mm;高さ=2.5mm)を得た。
触媒の改質活性試験は、約50cmの等温加熱ゾーンをもつ縦型反応器を使用して行った。試験対象の触媒を、窒素下にて600℃に加熱された等温ゾーン中にある反応器片面に設け、次いで水素により15時間(一夜)還元させた。次いで反応器温度を700℃にまで上げ、以下の混合ガス[18%のCH4、7%のH2、2%のCO2、73%のH2O(体積%)]を用いて、空間速度を60000h−1として2.5時間改質を行った。このようにして得たメタン変換率を、アルカリ金属水酸化物蒸気による触媒不活性化挙動の検討の出発点として使用した。
Claims (13)
- メタンの水蒸気改質用の触媒組成物であって、成分a)としての、ニッケル、アルミニウム及びジルコニウムの複合酸化物と、成分b)としての、水酸化アルミニウム[Al(OH)3]、水酸化酸化アルミニウム[AlO(OH)]及び酸化アルミニウム(Al2O3)からなる群から選ばれる他の酸素含有アルミニウム化合物を含み、該触媒組成物が成分a)とb)の物理的混合物である触媒組成物。
- ガンマ−酸化アルミニウム(γ−Al2O3)、デルタ−酸化アルミニウム(δ−Al2O3)またはシータ−酸化アルミニウム(θ−Al2O3)またはこれらの混合物を成分b)として含む請求項1に記載の触媒組成物。
- 成分b)が、触媒組成物の総量に対して1〜60質量%の量で存在する請求項1又は2のいずれかに記載の触媒組成物。
- 成分a)とb)が粉末状粒子として存在する請求項1〜3のいずれか一項に記載の触媒組成物。
- 成分a)の粒子の粒度のd50が0.5〜1500μmであり、成分b)の粒子の粒度のd50が0.3〜500μmである請求項4に記載の触媒組成物。
- 成分a)のBET表面積が20〜300m2/gの範囲であり、成分b)のBET表面積が20〜400m2/gの範囲である請求項4に記載の触媒組成物。
- 請求項1〜6のいずれか一項に記載の触媒組成物を含む触媒材料であって、ペレットまたは押出物に加工された材料。
- バインダーと潤滑剤と他の加工助剤とは別に、a)ニッケル、アルミニウム及びジルコニウムの複合酸化物と、b)ガンマ−酸化アルミニウム(γ−Al2O3)、デルタ−酸化アルミニウム(δ−Al2O3)またはシータ−酸化アルミニウム(θ−Al2O3)またはこれらの混合物とから構成されるペレット状の請求項7に記載の触媒材料。
- 直径が0.8〜5mmの範囲であり、高さが1〜10mmの範囲である請求項8に記載の触媒ペレット。
- 請求項1〜6のいずれか一項に記載の触媒組成物の製造方法であって、以下の加工工程をその順で含む方法:
a)成分a)及び/又はその可溶性出発化合物の溶液または分散液の製造;
b)塩基の添加による該溶液または分散液からの固体の析出;
c)該固体の分離と乾燥;
d)工程c)で得られた固体の焼成;
e)該固体の圧密化。
f)該固体の均一な粒度への粉砕
g)該固体と成分b)の均一な混合。 - 相当する触媒組成物の粉末または顆粒の打錠または押出成型による請求項7〜9の何れか1項に記載の触媒材料の製造方法。
- ペレットの製造に偏心型プレスまたはロータリープレスが用いられる請求項11に記載の方法。
- 請求項7〜9のいずれか一項に記載の触媒材料の燃料電池中の改質触媒としての利用。
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PCT/IB2012/056155 WO2013068904A1 (de) | 2011-11-09 | 2012-11-05 | Katalysatorzusammensetzung für die methandampfreformierung in brennstoffzellen |
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JP6701778B2 (ja) * | 2015-02-13 | 2020-05-27 | 日本製鉄株式会社 | 炭化水素の改質による水素の製造方法、水素の製造装置、燃料電池の運転方法、及び燃料電池の運転装置 |
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