Porous catalytic object for decomposing hydrocarbon and process for producing same, process for producing hydrogen-containing mixed reformed gas from hydrocarbon, and fuel cell system

A manufacturing method and a technology for a catalyst body, which are applied to fuel cells, molecular sieve catalysts, hydrogen/synthesis gas production, etc., can solve the problems of catalyst sulfide poisoning, uneconomical manufacturing cost and maintenance, and complicated operation and operation, and achieve the improvement of sulfur resistance. Toxicity, excellent catalytic activity, excellent effect of anti-interstitial

A manufacturing method and a technology for a catalyst body, which are applied to fuel cells, molecular sieve catalysts, hydrogen/synthesis gas production, etc., can solve the problems of catalyst sulfide poisoning, uneconomical manufacturing cost and maintenance, and complicated operation and operation, and achieve the improvement of sulfur resistance. Toxicity, excellent catalytic activity, excellent effect of anti-interstitial

CN102574103AActive Publication Date: 2012-07-11TODA IND
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  • Porous catalytic object for decomposing hydrocarbon and process for producing same, process for producing hydrogen-containing mixed reformed gas from hydrocarbon, and fuel cell system
  • Porous catalytic object for decomposing hydrocarbon and process for producing same, process for producing hydrogen-containing mixed reformed gas from hydrocarbon, and fuel cell system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0112] Embodiment 1 (preparation of hydrotalcite compound powder)

[0113] Dissolve MgSO in pure water 4 ·7H 2 O 1113.2g and Al 2 (SO 4 ) 3 ·8H 2 O 439.3g, NiSO 4 ·6H 2 O 308.8g is made into 20000ml solution, and NaOH 3772ml (14mol / L concentration) and dissolved NaOH are prepared in addition 2 CO 3 The solutions of 134.1 g are combined into 5000 ml of alkali mixed solution. The above mixed solution of magnesium salt, aluminum salt and nickel salt was added to the alkali mixed solution, and aged at 95° C. for 8 hours to obtain a hydrotalcite compound. After it was separated by filtration, it was dried and pulverized to obtain hydrotalcite compound powder. The obtained hydrotalcite compound powder had a BET specific surface area of ​​33.0m 2 / g. In addition, the average particle diameter of the secondary aggregated particles after the pulverization treatment was 48.2 μm.

[0114] (Preparation of porous catalytic body for decomposing hydrocarbons)

[0115] Aluminum ...

Embodiment 2

[0133] Mg(NO) was dissolved in pure water 3 ) 2 ·6H 2 O 3355.4g and Al(NO 3 ) 3 9H 2 O 2134.4g, Ni(NO 3 ) 2 ·6H 2 O 2481.7g is made into 20000ml solution, and NaOH6241ml (14mol / L concentration) and dissolved NaOH are prepared in addition 2 CO 3 The solution of 844.3g is combined into 15000ml alkali mixed solution. The above mixed solution of magnesium salt, aluminum salt and nickel salt was added to this alkali mixed solution, and aged at 60° C. for 6 hours to obtain a hydrotalcite compound. After it was separated by filtration, it was dried and pulverized to obtain hydrotalcite compound powder. The BET specific surface area of ​​the obtained hydrotalcite compound powder was 125.0m 2 / g. In addition, the average particle diameter of the secondary aggregated particles after the pulverization treatment was 15.2 μm.

[0134] (Preparation of porous catalytic body for decomposing hydrocarbons)

[0135] Aluminum hydroxide (crystal phase: boehmite, BET specific surface ...

Embodiment 3

[0137] Dissolve Ca(NO 3 ) 2 1827.7g and Al(NO 3 ) 3 9H 2 O 949.5g, Ni(NO 3 ) 2 ·6H 2 O 1177.7g made 28000ml solution. In addition, NaOH 3854ml (14mol / L concentration) and NaOH dissolved in 2 CO 3 The solution of 375.6g is put together the alkali mixed solution of 12000ml. The above-mentioned mixed solution of calcium salt, aluminum salt, and nickel salt was added to this alkali mixed solution, and aged at 80° C. for 12 hours to obtain a hydrotalcite compound. After it was separated by filtration, it was dried and pulverized to obtain hydrotalcite compound powder. The BET specific surface area of ​​the obtained hydrotalcite compound powder was 88.5m 2 / g. In addition, the average particle diameter of the secondary aggregated particles after the pulverization treatment was 122.8 μm.

[0138] (Preparation of porous catalyst for decomposing hydrocarbons)

[0139] Aluminum hydroxide (crystal phase: boehmite, BET specific surface area: 22.2m 2 / g) 581.9 g and 52.83 g ...

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Abstract

Disclosed is a porous catalytic object for decomposing hydrocarbons which comprises a porous composite oxide and nickel metal having a particle diameter of 1-25 nm, the porous composite oxide at least containing magnesium and / or calcium and further containing aluminum, the porous catalytic object being characterized by having an average compressive strength of 5 kgf or higher and having a displacement length of 0.05 mm or longer when compressed at a load of 5 kgf. The porous catalytic object is less expensive as a porous catalytic object for decomposing hydrocarbons, has excellent catalytic activity with respect to the decomposition and removal of hydrocarbons, has excellent resistance to poisoning by sulfur, has high resistance to caulking even under low-steam conditions, has a compressive strength and a displacement length which render the object optimal for DSS operations, and has excellent durability.

Description

technical field [0001] The object of the present invention is to provide a catalyst which is cheaper as a porous catalytic body for decomposing hydrocarbons, exhibits excellent catalytic activity for the decomposition and removal of hydrocarbons, is excellent in resistance to sulfur poisoning, and has high resistance even under low steam. Gap filling (resistance to caulking), has the most suitable compressive strength and deformation length for DSS operation, and has excellent durability. [0002] Another object of the present invention is to efficiently decompose and remove hydrocarbons and produce hydrogen by using the catalyst described above. Background technique [0003] In recent years, due to the problems of the global environment, the early practical technology of new energy has attracted attention. As one of its methods, fuel cells are attracting attention. Depending on the type of electrolyte used in the fuel cell, phosphoric acid type (PEFC), molten carbonate ty...

Claims

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Application Information

Patent Timeline
11 Jul 2012
Publication
CN102574103A
IPC
B01J21/16; B01J37/16; C01B3/40; H01M8/06
CPC
B01J37/04; B01J21/04; C01B2203/0244; B01J37/0036; H01M8/0618; B01J37/0201; B01J35/1014; C01B2203/1064
Inventors
高桥真司; 小林齐也