[특허]Method for preparation of catalytic material for selective oxidation and catalyst members thereof

Method for preparation of catalytic material for selective oxidation and catalyst members thereof 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B01J-023/89
출원번호	US-0392813 (1999-09-09)
발명자 / 주소	Korotkikh, Olga Farrauto, Robert J. McFarland, Andrew
출원인 / 주소	Engelhard Corporation
대리인 / 주소	Lindenfeldar, Russell G.
인용정보	피인용 횟수 : 31 인용 특허 : 32

초록 ▼

The invention pertains to the preparation and use of catalytic materials and catalyst members for the selective oxidation of carbon monoxide in a gas stream that contains hydrogen. One such catalyst member may be produced by depositing by electric arc spraying a metal feedstock onto a metal substrate to provide a metal anchor layer on the substrate, and depositing a catalytic material comprising platinum and iron dispersed on a refractory inorganic oxide support material onto the metal substrate. The catalytic material may optionally be produced by wetting the support material, especially a particulate support material, with a platinum group metal solution and iron solution and drying and calcining the wetted support material in air at a temperature in the range of from 200° C. to 300° C., preferably using a solution containing bivalent platinum ion species. The catalyst member may be used by flowing the gas stream therethrough at a temperature at about 90° C. with a O2:CO ratio of about 1:1 and a space velocity of about 20,000/hr or, alternatively, at a temperature of about 150° C. with a O2:CO ratio of about 1.5:1 and a space velocity of about 80,000/hr.

대표청구항 ▼

1. A catalyst member comprising a carrier substrate having a catalytic material thereon, wherein the catalytic material is prepared by the method comprising wetting powdered refractory inorganic oxide comprised of alumina with a bivalent platinum solution and an iron solution, and drying and calcining the wetted support material under oxidizing conditions at a temperature in the range of from 200° C. up to, but not including, 300° C., wherein the platinum is present at a loading in the range of from about 3 to 5 percent and the iron is present at a loading of about 0.3 percent, both calculated as percent by weight of the catalytic material. 2. The method of claim 1 carried out at a temperature in the range between 200° C. and 285° C. 3. The method of claim 1 carried out at a temperature in the range between 215° C. and 285° C. 4. A catalyst member comprising a carrier substrate having a catalytic material thereon, wherein the catalytic material is prepared by the method comprising wetting a refractory inorganic oxide support material with a bivalent platinum solution and an iron solution, and treating the resulting wetted support material by a process consisting essentially of drying and calcining the wetted support material under oxidizing conditions and at a temperature in the range of from 200° C. up to, but not including, 300° C., wherein the catalytic material is substantially free of at least one metal selected from the group consisting of palladium, rhodium and cerium, and wherein the carrier substrate comprises a metal substrate having a surface layer of metal oxide. 5. The catalyst member of claim 4 comprising a coating of refractory inorganic oxide material on the carrier as a binder coat beneath the catalytic material. 6. The catalyst member of claim 4 wherein the metal substrate comprises a foamed metal substrate. 7. The catalyst member of claim 4 wherein the metal substrate is calcined before the catalytic material is deposited thereon to produce the surface layer of metal oxide. 8. The catalyst member of claim 7 wherein the metal substrate comprises a foamed metal substrate. 9. The catalyst member of claim 4 wherein the support material comprises a powdered support material. 10. The catalyst member of claim 9 wherein the support material comprises alumina.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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연합인증

Method for preparation of catalytic material for selective oxidation and catalyst members thereof 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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이 특허를 인용한 특허 (31)

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Method for preparation of catalytic material for selective oxidation and catalyst members thereof 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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이 특허에 인용된 특허 (32)

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