发明申请
- 专利标题： PROCESS FOR IMPROVING LUBRICATING QUALITIES OF LOWER QUALITY BASE OIL
- 专利标题（中）： 改进低质量基础油润滑性能的方法
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申请号： US12047887申请日： 2008-03-13
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公开(公告)号： US20090233821A1公开(公告)日： 2009-09-17
- 发明人: John M. Rosenbaum , Brent K. Lok , David C. Kramer , John O'Brien , Stephen J. Miller
- 申请人： John M. Rosenbaum , Brent K. Lok , David C. Kramer , John O'Brien , Stephen J. Miller
- 专利权人： Chevron U.S.A. Inc.
- 当前专利权人： Chevron U.S.A. Inc.
- 主分类号： C10M109/02
- IPC分类号： C10M109/02
摘要：
A process for producing an API Group I base oil, comprising: blending a lower quality base oil that does not meet API Group I specifications with a Fischer-Tropsch derived distillate fraction having defined pour point, viscosity index and Oxidator B, and isolating an API Group I base oil that has improved defined properties. A process for producing an API Group I base oil, consisting essentially of: (a) selecting a lower quality base oil not meeting API Group I specifications, having defined saturates, viscosity index and Oxidator BN; and (b) blending the lower quality base oil with a Group II base oil and a Fischer-Tropsch derived base oil. A process for improving the lubricating properties of a lower quality base oil. Also, a process for operating a base oil plant.
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