[특허]Process for isomerizing linear olefins to isoolefins

Process for isomerizing linear olefins to isoolefins 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B01J-029/06
출원번호	US-0175004 (1993-12-29)
발명자 / 주소	Murray Brendan D. (Houston TX)
출원인 / 주소	Shell Oil Company (Houston TX 02)
인용정보	피인용 횟수 : 91 인용 특허 : 0

초록 ▼

An active and stable catalyst for isomerizing linear olefins to methyl branched isoolefins is provided by (a) mixing (i) a zeolite powder containing at least one zeolite with at least one one-dimensional pore structure having pore size small enough to retard by-product dimerization and coke formation and large enough to permit entry of the linear olefin and allow formation of the methyl branched isoolefin, (ii) an alumina-containing binder, (iii) water, (iv) at least one acid selected from monocarboxylic acids and inorganic acids and (v) at least one polycarboxylic acid; (b) forming a pellet of the mixture; and (c) calcining the pellet. The resulting catalyst has superior selectivity, higher maximum product concentration in the product stream and longer run length for isomerizing linear olefins to their corresponding isoolefins.

대표청구항 ▼

A process for preparing a catalyst for structurally isomerizing a linear olefin of at least 4 carbon atoms to its corresponding methyl branched isoolefin comprising: (a) mixing (i) a zeolite powder comprising at least one zeolite with at least one one-dimensional pore structure having pore size ranging from greater than 0.42 nm to less than 0.7 nm, (ii) an alumina-containing binder, (iii) water, (iv) from about 0.1 weight percent to about 6 weight percent, based on (i) and (ii), of at least one acid selected from the group consisting of monocarboxylic acids and inorganic acids and, (v) from about 0.1 weight percent to about 6 weight percent, based on (i) and (ii), of at least one polycarboxylic acid thereby producing a mixture; (b) forming a pellet of said mixture; and (c) calcining said pellet at a temperature of from about 200°C. to about 700°C.

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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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Process for isomerizing linear olefins to isoolefins 원문보기

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Process for isomerizing linear olefins to isoolefins 원문보기

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