发明名称 |
Method of producing lube stocks from waxy crudes |
摘要 |
Multi-step synergistic process for converting waxy-containing hydrocarbon feedstocks to lube oil stocks having targeted pour points is disclosed. The waxy feed is first catalytically partially dewaxed with the catalyst having the structure of ZSM-5, and then the partially dewaxed oil is subjected to solvent dewaxing to reach a targeted pour point. Pretreating the crude prior to catalytic dewaxing process such as by deasphalting and aromatic removal is also disclosed. In an alternative process, the waxy-containing hydrocarbon feed is subjected to the steps of solvent dewaxing, catalytic dewaxing, and solvent dewaxing.
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申请公布号 |
US4678556(A) |
申请公布日期 |
1987.07.07 |
申请号 |
US19850811200 |
申请日期 |
1985.12.20 |
申请人 |
MOBIL OIL CORPORATION |
发明人 |
HICKS, MICHAEL S.;VANNAUKER, DAVID L. |
分类号 |
C10G67/04;(IPC1-7):C10G55/06;C10G73/06 |
主分类号 |
C10G67/04 |
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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