Title:
統合潤滑油品質向上方法
Document Type and Number:
Japanese Patent JP2004514019
Kind Code:
A
Abstract:
A process for upgrading oil feedstock wherein the feedstock is hydrocracked, flashed and/or distilled. The bottoms are then vacuum distilled to adjust viscosity and volatility. The refined feed is then dewaxed under high pressure by a medium pore molecular sieve. The dewaxed material is then cascaded to a hydrofinishing step, where it is contacted with an aromatics saturation catalyst having a metal hydrogenation function in order to produce, after appropriate flashing and distillation, lubricant products having high Viscosity Index, low aromatics content, low volatility and excellent stability to light in the presence of oxygen.
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Inventors:
Carol, Michael, Bee.
Smith, Fritz, A.
Vixel, John, Sea.
Smith, Fritz, A.
Vixel, John, Sea.
Application Number:
JP2002542023A
Publication Date:
May 13, 2004
Filing Date:
November 02, 2001
Export Citation:
Assignee:
EXXON RESEARCH AND ENGINEERING COMPANY
International Classes:
B01J29/44; B01J29/66; B01J29/85; C10B57/02; C10G25/00; C10G45/00; C10G45/50; C10G45/52; C10G45/64; C10G47/02; C10G47/24; C10G57/00; C10G65/00; C10G65/08; C10G65/12; C10G73/02; (IPC1-7): C10G65/12; B01J29/44; B01J29/66; B01J29/85; C10G45/50; C10G45/52; C10G45/64; C10G65/08; C10G73/02
Attorney, Agent or Firm:
Kenji Kawabi