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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0164219 (1993-12-13) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 291 인용 특허 : 0 |
The present invention relates to catalysts suitable for hydrogenating aromatics and olefins in hydrocarbon feedstocks boiling between about 125°C. and about 625°C. as well as the process for carrying out the hydrogenation. The catalysts consist of one or more Group VIII noble metal(s) on a support w
The present invention relates to catalysts suitable for hydrogenating aromatics and olefins in hydrocarbon feedstocks boiling between about 125°C. and about 625°C. as well as the process for carrying out the hydrogenation. The catalysts consist of one or more Group VIII noble metal(s) on a support wherein the support is a Y-type zeolite prepared by contacting a starting Y-type zeolite having a unit cell size less than about 24.65, preferably less than about 24.4 angstroms, a silica to alumina molar ratio greater than about 5, preferably by greater than about 25 and an alkali metal content of less than about 0.30, preferably less than about 0.15 percent (basis metal) with one or more aqueous solution(s) comprising alkali(ne-earth) metal ions under conditions sufficient to provide a final alkali metal content (measured in terms of gram equivalent weight per gram of zeolite) of at least about 1.5 times greater than the alkali metal content (measured in terms of gram equivalent weight per gram of zeolite) of the starting zeolite. Preferred Group VIII metals are platinum and palladium and sodium is a preferred alkali(ne-earth) metal.
A process for the hydrogenation of hydrocarbon feedstocks containing hydrogenatable components and which have a boiling range between about 125°C. and about 625°C. which process comprises contacting said feedstock at a temperature ranging between about 150°C. and about 400°C. with hydrogen and a cat
A process for the hydrogenation of hydrocarbon feedstocks containing hydrogenatable components and which have a boiling range between about 125°C. and about 625°C. which process comprises contacting said feedstock at a temperature ranging between about 150°C. and about 400°C. with hydrogen and a catalyst comprising one or more Group VIII noble metal(s) on a support wherein the support comprises a zeolite prepared by contacting a starting Y zeolite having a unit cell size of less than about 24.65 angstroms, a silica to alumina molar ratio greater than about 5, and an alkali metal content of less than about 0.3 percent (basis metal) with one or more aqueous solution(s) comprising alkali(ne-earth) metal ions under conditions sufficient to provide a final alkali(ne-earth) metal content (measured in terms of gram equivalent weight per gram of zeolite) of at least about 1.5 times greater than the alkali metal content (measured in terms of gram equivalent weight per gram of zeolite) of the starting zeolite.
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