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
-
申请号: US686076申请日: 1984-12-24
-
公开(公告)号: US4636299A公开(公告)日: 1987-01-13
- 发明人: Eugene E. Unmuth , John A. Mahoney , Ralph J. Bertolacini
- 申请人: Eugene E. Unmuth , John A. Mahoney , Ralph J. Bertolacini
- 申请人地址: IL Chicago
- 专利权人: Standard Oil Company (Indiana)
- 当前专利权人: Standard Oil Company (Indiana)
- 当前专利权人地址: IL Chicago
- 主分类号: C10G67/04
- IPC分类号: 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 compounds. Specifically, the hydrocarbon feedstock is passed to an extraction zone wherein N-Methyl-2-pyrrolidone is used to extract a portion of the aromatic compounds. A portion of the extraction zone raffinate is then passed to a hydrotreating zone wherein a portion of the nitrogen and sulfur containing compounds are converted to hydrogen sulfide and ammonia. Subsequently, a portion of the hydrotreating zone effluent is then passed to a dewaxing zone and contacted with a shape selective molecular sieve containing dewaxing catalyst.
公开/授权文献
- US5843055A Stratified, multi-functional fluid absorbent members 公开/授权日:1998-12-01
信息查询