发明名称 |
NOVEL PROCESS AND CATALYST SYSTEM FOR IMPROVING DEWAXING CATALYST STABILITY AND LUBRICANT OIL YIELD |
摘要 |
<p>The invention provides for a process for dewaxing a waxy hydrocarbon feedstock to form a lubricant oil. The invention is also directed to a catalyst system comprising a hydrotreating catalyst upstream of a dewaxing catalyst, used in the dewaxing of a waxy hydrocarbon feedstock to form a lubricant oil. In particular, the invention is directed to a process and catalyst system designed to maintain yield of lubricant oil product. Specifically, the yield of lubricant oil does not decrease more than 2%, at a target pour point, over a dewaxing temperature range. The hydrotreating catalyst helps prevent aging of the dewaxing catalyst and maintains lubricant oil product yield at a target pour point over a wide temperature range. The hydrotreating catalyst comprises platinum, palladium, or combinations thereof on a low acidity inorganic oxide support where acidity is measured by a decalin conversion of less than 10% at 700F.</p> |
申请公布号 |
EP2691492(A1) |
申请公布日期 |
2014.02.05 |
申请号 |
EP20110862225 |
申请日期 |
2011.03.31 |
申请人 |
CHEVRON U.S.A. INC. |
发明人 |
KRISHNA, KAMALA, R.;ZIEMER, JAMES, N.;RAINIS, ANDREW;BISCARDI, JOSEPH, A.;HARRIS, THOMAS, V. |
分类号 |
C10G45/10;B01J23/40;B01J23/44;B01J29/62;B01J29/74;C07C7/163;C10G45/04;C10G45/58;C10G45/60;C10G45/62;C10G65/04;C10G67/02;C10M101/02 |
主分类号 |
C10G45/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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