发明授权
- 专利标题: Process for the manufacture of lubricating oils
- 专利标题(中): 制造润滑油的方法
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申请号: US945084申请日: 1986-12-22
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公开(公告)号: US4728415A公开(公告)日: 1988-03-01
- 发明人: Eugene E. Unmuth , Ralph J. Bertolacini , John A. Mahoney
- 申请人: Eugene E. Unmuth , Ralph J. Bertolacini , John A. Mahoney
- 申请人地址: IL Chicago
- 专利权人: Amoco Corporation
- 当前专利权人: Amoco Corporation
- 当前专利权人地址: IL Chicago
- 主分类号: C10G45/64
- IPC分类号: C10G45/64 ; C10G65/04 ; C10G67/04
摘要:
The present invention provides for a process for reducing the pour point of a hydrocarbon feedstock containing nitrogen- and sulfur-containing impurities. The hydrocarbon feedstock is contacted with hydrogen and a hydrotreating catalyst under hydrotreating conditions whereby a portion of the nitrogen- and sulfur-containing compounds are converted to hydrogen sulfide and ammonia. A portion of the hydrotreater effluent is then passed to a dewaxing zone and contacted with hydrogen under dewaxing conditions in the presence of a dewaxing catalyst containing a borosilicate molecular sieve on silica-alumina-containing matrix.
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