发明名称 |
REFINING PROCESS OF HYDROCONVERSION WHEN PRODUCING LUBRICATING OILS |
摘要 |
<p>The invention provides for a layered catalyst system to effectively optimize and tailor the hydrocarbon processing of a hydrocarbon stream to maximize yield in the creation of a lube oil base stock process. In particular, the invention includes the surprising discovery that a layer of a first catalyst can be placed in contact and on top of the isodewaxing catalyst layer to achieve higher yields, increased catalyst lifetime and avoid VI reduction.</p> |
申请公布号 |
CZ9900096(A3) |
申请公布日期 |
1999.04.14 |
申请号 |
CZ19990000096 |
申请日期 |
1997.07.15 |
申请人 |
CHEVRON U. S. A. INC. |
发明人 |
ZIEMER JAMES N.;O`REAR DENNIS J.;SANTILLI DONALD S. |
分类号 |
C10G45/04;C10G45/46;C10G45/52;C10G45/54;C10G45/64;C10G47/10;C10G47/18;C10G65/12;C10M101/02;C10M171/00;(IPC1-7):C10G65/12 |
主分类号 |
C10G45/04 |
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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