[특허]Catalytic system particularly for the postcombustion of exhaust gases and a method of producing such a system

Catalytic system particularly for the postcombustion of exhaust gases and a method of producing such a system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B01J-027/224 B01J-027/22 C04B-035/52 C01B-031/36
출원번호	US-0873198 (1992-04-24)
우선권정보	FR-0005771 (1991-04-29)
발명자 / 주소	Dubots Dominique (Passy FRX)
출원인 / 주소	Pechiney Electrometallurgie (Courbevoie FRX 03)
인용정보	피인용 횟수 : 16 인용 특허 : 0

초록 ▼

The invention relates to a catalytic system and to a method of producing such a system. The catalytic system consists of a support on which the catalytically active product is deposited. The support has mechanical or physical properties which are of interest in terms of the required working conditions, but a poor specific surface area. The catalytically active product, a metallic carbide, is obtained by coating the support in a suspension of a reducible compound of the metal in a solution of an organic compound, carbonizing this compound, reducing the metallic compound and carburizing the metal. The carbide thus obtained has a high specific surface area. Preferably, the support consists of silicon carbide produced by carbonizing a paste containing silicon, carbon and an organic resin. The invention is applicable to any form of catalyst but in particular to the monolithic catalysts intended for treating exhaust gases.

대표청구항 ▼

A catalytic system comprising a porous support and a deposited coating of catalyst on the pores of said support,: said support consisting essentially of silicon carbide having a specific surface area between 0.5 and 4 m2/g and having a texture and/or form selected from the group consisting of a monolithic alveolate, a honeycomb structure, extrudates, granules in various shapes and sizes, and powders; said deposited coating of catalyst consisting essentially of carbides of large specific surface area, of one or more metals selected from the group consisting of molybdenum, tungsten, vanadium, tantalum, niobium, chromium and iron. A catalytic system according to claim 20, wherein the catalyst further includes at least one oxycarbide of said one or more metals. A catalytic system comprising a porous support and a deposited coating of catalyst on the pores of said support, the support formed of silicon nitride or a compound of alumina and silicon nitride, and having a specific surface area of 0.5 to 4 m2/g, the deposited coating consisting essentially of carbides having a large specific surface area, of one or more metals selected from the group consisting of molybdenum, tungsten, vanadium, tantalum, niobium, chromium and iron.

이 특허를 인용한 특허 (16)

Schubert, Markus; Hesse, Michael; Stephan, Juergen; Boehm, Volker; Brodhagen, Andreas; Poplow, Frank; Sinner-Lang, Martina; Diehlmann, Uwe; Cox, Gerhard; Pfeifer, Jochen, Activated metathesis catalysts.
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Moy, David; Niu, Chunming; Ma, Jun; Willey, James M., Carbide and oxycarbide based compositions, rigid porous structures including the same, methods of making and using the same.
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Moy, David; Niu, Chunming; Ma, Jun; Willey, James M., Carbide and oxycarbide based compositions, rigid porous structures including the same, methods of making and using the same.
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Patrick Da Costa FR; Jean-Marie Manoli FR; Claude Potvin FR; Gerald Dejega-Mariadassou FR; Pedro Da Silva FR; Slavik Kasztelan FR; Fabrice Diehl FR; Michele Breysse FR, Catalyst comprising a group VIB metal carbide, phosphorous and its use for hydrodesulphurisation and hydrogenation of gas oils.
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Soren Andersson SE; Magali Boutonnet Kizling SE, Device for cleaning exhaust fumes.
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Boylan, Joseph, Hard non-oxide or oxide ceramic / hard non-oxide or oxide ceramic composite hybrid article.
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Moy, David; Niu, Chunming; Ma, Jun; Willey, Jason M., Method of using carbide and/or oxycarbide containing compositions.
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Moy, David; Niu, Chunming; Ma, Jun; Willey, Jason M., Method of using carbide and/or oxycarbide containing compositions.
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Moy,David; Niu,Chunming; Ma,Jun; Willey,Jason M., Method of using carbide and/or oxycarbide containing compositions.
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Ma, Jun; Moy, David, Modified carbide and oxycarbide containing catalysts and methods of making and using thereof.
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Ma,Jun; Moy,David, Modified carbide and oxycarbide containing catalysts and methods of making and using thereof.
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Gadkaree, Kishor P.; Mach, Joseph F.; Stempin, John L., Process for producing silicon carbide bodies.
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Savin Poncet,Sabine; Ledoux,Marc Jacques; Pham Huu,Cuong; Bousquet,Jacques; Madani,Behrang, Process for the conversion of a synthesis gas to hydrocarbons in the presence of beta-SiC and effluent from this process.
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Ledoux Marc J. (Strasbourg FRX) Guille Jean-Louis (Strasbourg FRX) Huu Cuong P. (Saverne FRX) Blekkan Edd (Flataasen NOX) Peschiera Eric (Avon FRX), Process for the isomerisation of straight hydrocarbons containing at least 7 carbon atoms using catalysts with a base of.
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John William Couves GB; Simon James Kitchen GB, Process for the production of vinyl acetate.
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Prin Marie,FRX ; Ollivier Benoist,FRX, Silicon carbide foam with high specific surface area and improved mechanical properties.
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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

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연합인증

Catalytic system particularly for the postcombustion of exhaust gases and a method of producing such a system 원문보기

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Catalytic system particularly for the postcombustion of exhaust gases and a method of producing such a system 원문보기

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이 특허를 인용한 특허 (16)

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