[특허]Graded palladium-containing partial combustion catalyst and a process for using it

Graded palladium-containing partial combustion catalyst and a process for using it 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F23D-003/40
출원번호	US-0856462 (1992-03-24)
발명자 / 주소	Dalla Betta Ralph A. (Mountain View CA) Tsurumi Kazunori (Fujisawa CA JPX) Shoji Toru (Sunnyvale CA)
출원인 / 주소	Catalytica, Inc. (Mountain View CA 02)
인용정보	피인용 횟수 : 88 인용 특허 : 0

초록 ▼

This invention is a graded catalyst comprising palladium and also a partial combustion process in which the fuel is partially combusted using that catalyst. The catalyst utilizes a catalytic support structure suitable for high flow rates of combustible gas mixtures through it. The catalyst is situated on the support so that in the flowing gas stream a leading portion of the support has a higher combustion activity, such as by a higher concentration of catalytic metal, than has the trailing portion. The combination of graded catalyst and support provides a low “light off”temperature for the combustible gas (only a low preheat temperature is needed to cause the combustion reaction to begin) and yet does not cause “hot spots”to occur because of excess activity. The combustion gas produced by the catalytic process may be at a temperature below the adiabatic combustive temperature, may be used at that temperature, or fed to other combustion stages for further use in a gas turbine, furnace, boiler, or the like.

대표청구항 ▼

A partial combustion comprising the steps of: a. mixing an amount of an oxygen containing gas with a combustible fuel to produce a combustible gas mixture having an adiabatic combustion temperature, and b. passing the combustible gas mixture into a partial combustion zone containing a catalyst configuration comprising a support having longitudinal passageways with a leading zone containing a relatively higher activity palladium-containing catalyst containing a relatively higher concentration of palladium and a trailing zone containing a relatively lower activity palladium-containing catalyst containing a relatively lower concentration of palladium, the passageways adapted for the passage of the combustible gas from the leading zone to the trailing zone and for the partial combustion of the combustible gas mixture to produce a partially combusted exhaust gas having a bulk temperature and a catalyst temperature less than the adiabatic combustion temperature of the combustible gas mixture.

이 특허를 인용한 특허 (88)

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A62	인명구조; 소방(사다리 E06C)
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연합인증

Graded palladium-containing partial combustion catalyst and a process for using it 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허를 인용한 특허 (88)

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Graded palladium-containing partial combustion catalyst and a process for using it 원문보기

초록 ▼

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연구과제 타임라인

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