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Catalyst for reforming oxygen-containing hydrocarbon, and hydrogen or synthetic gas production method and fuel cell system using the catalyst

A synthesis gas and catalyst technology, applied in catalyst activation/preparation, fuel cell, hydrogen/synthesis gas production, etc., can solve problems such as catalyst deactivation, and achieve the effects of improved durability and excellent reforming activity

Inactive Publication Date: 2010-05-26
JAPAN SCI & TECH CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, Patent Document 8 discloses a catalyst in which a Cu-Zn-Al type methanolysis catalyst and ZSM-5 are mixed, but compared with the catalyst of Patent Document 7, there is a problem in that coke that causes catalyst deactivation is easily generated.
[0009] On the other hand, in Patent Document 9, as an example of the reforming catalyst II, a method in which CuMn is supported on alumina and then sintered at a temperature of 500-1000° C. after preliminary sintering is disclosed, but this technology In terms of spinel, spinel is produced by loading alumina before forming spinel, and then sintering at high temperature, which is a technology that mixes a substance with a spinel structure and alumina and then sinters there is a fundamental difference

Method used

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  • Catalyst for reforming oxygen-containing hydrocarbon, and hydrogen or synthetic gas production method and fuel cell system using the catalyst
  • Catalyst for reforming oxygen-containing hydrocarbon, and hydrogen or synthetic gas production method and fuel cell system using the catalyst
  • Catalyst for reforming oxygen-containing hydrocarbon, and hydrogen or synthetic gas production method and fuel cell system using the catalyst

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0134] Preparation Example 1CuFe 2 O 4 Spinel oxide

[0135] 24.184g copper nitrate (manufactured by Wako Pure Chemical Industries, Ltd., 99.9% Cu(NO 3 ) 2 ·3H 2 O) and 80.881g iron nitrate (manufactured by Wako Pure Chemical Industries, Ltd., 99.9% Fe(NO 3 ) 3 ·9H 2 O) Put it into a beaker, add distilled water to dissolve it, and make the volume 300ml. It was heated to 60°C and stirred for 2 hours.

[0136] Then, 92.926 g of citric acid monohydrate (manufactured by Wako Pure Chemical Industries, Ltd., 99.5% C 6 H 8 O 7 ·3H 2 O), further stirring at 60°C for 1 hour, and then raising the temperature to 90°C to evaporate water.

[0137] The nitrate and citric acid of the gel produced in this way are decomposed in air at 140-200°C to obtain fine oxide powder, and then sintered in air at 900°C for 10 hours to obtain CuFe 2 O 4 Spinel type oxide.

preparation example 2C

[0138] Preparation Example 2CuMn 2 O 4 Spinel oxide

[0139] 24.184g copper nitrate (manufactured by Wako Pure Chemical Industries, Ltd., 99.9% Cu(NO 3 ) 2 ·3H 2 O) and 58.588g of manganese nitrate (manufactured by Aldrich, 98% Mn(NO 3 ) 2 ·6H 2 O) Put it into a beaker, add distilled water to dissolve it, and make the volume 300ml. It was heated to 60°C and stirred for 2 hours.

[0140] Then, 92.926 g of citric acid monohydrate (manufactured by Wako Pure Chemical Industries, Ltd., 99.5% C 6 H 8 O 7 ·3H 2 O), further stirring at 60°C for 1 hour, and then raising the temperature to 90°C to evaporate water.

[0141] The nitrate and citric acid of the gel produced in this way are decomposed in air at 140-200°C to obtain fine oxide powder, and then sintered in air at 900°C for 10 hours to obtain CuMn 2 O 4 Spinel type oxide.

preparation example 3

[0142] Preparation Example 3CuFe 1.5 Mn 0.5 O 4 Spinel oxide

[0143] 24.184g copper nitrate (manufactured by Wako Pure Chemical Industries, Ltd., 99.9% Cu(NO 3 ) 2 ·3H 2 O), 60.661g iron nitrate (manufactured by Wako Pure Chemical Industries, Ltd., 99.9% Fe(NO 3 ) 3 ·9H 2 O) and 14.647g manganese nitrate (manufactured by Aldrich, 98% Mn(NO 3 ) 2 ·6H 2 O) Put it into a beaker, add distilled water to dissolve it, and make the volume 300ml. It was heated to 60°C and stirred for 2 hours.

[0144] Then, 92.926 g of citric acid monohydrate (manufactured by Wako Pure Chemical Industries, Ltd., 99.5% C 6 H 8 O 7 ·3H 2 O), further stirring at 60°C for 1 hour, and then raising the temperature to 90°C to evaporate water.

[0145] The nitrate and citric acid of the gel produced in this way are decomposed in air at 140-200°C to obtain fine oxide powder, and then sintered in air at 900°C for 10 hours to obtain CuFe 1.5 Mn 0.5 O 4 Spinel type oxide.

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PUM

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Abstract

The object is to improve the catalytic activity of reforming an oxygen-containing hydrocarbon of a cupper-containing metal oxide having a spinel structure, and thus to provide a reforming catalyst having an improved reforming activity and improved durability and a hydrogen or synthetic gas production method and a fuel cell system both using the catalyst. Specifically disclosed are: a catalyst for reforming an oxygen-containing hydrocarbon, which is prepared by the step of firing a mixture of (A) a copper-containing metal oxide having a spinel structure with (B) a solid acid at 300 to 850 DEG C in an atmosphere containing at least oxygen; a method for producing hydrogen or a synthetic gas, which comprises subjecting an oxygen-containing hydrocarbon to any one of various reforming treatments using the catalyst; and a fuel cell system which comprises a reformer having the catalyst and a fuel cell utilizing hydrogen produced by the reformer as a fuel.

Description

Technical field [0001] The present invention relates to a catalyst for reforming oxygen-containing hydrocarbons, a method for producing hydrogen or synthetic gas using the catalyst, and a fuel cell system. More specifically, the present invention relates to a catalyst for reforming oxygen-containing hydrocarbons prepared through a sintering process, the process being: in an oxygen-containing atmosphere at a specific temperature, the metal containing copper and having a spinel structure A mixture of oxide and solid acid is sintered; and a method for reforming oxygen-containing hydrocarbons using the reforming catalyst to efficiently produce hydrogen or synthesis gas; and a fuel cell system using the reforming catalyst . Background technique [0002] Synthetic gas contains carbon monoxide and hydrogen. In addition to being used as a raw material gas for methanol synthesis, oxo synthesis, Fischer-Tropsch synthesis, etc., it is also widely used as a raw material for ammonia synthesi...

Claims

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Application Information

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IPC IPC(8): B01J23/745B01J23/889C01B3/32C01B3/40B01J23/80B01J37/08B01J37/16H01M8/06
CPCY02E60/50Y02P20/52H01M8/0618C01B3/40B01J23/005B01J23/745B01J23/8892B01J37/08B01J37/14B01J37/16C01B2203/066B01J35/30
Inventor K·冯纳瓦基江口浩一菊地隆司福永哲也
Owner JAPAN SCI & TECH CORP
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