Title:
予備処理した使用済み油の品質向上
Document Type and Number:
Japanese Patent JP2005505681
Kind Code:
A
Abstract:
A process to further upgrade a pre-processed used lubricating oil by: (a) contacting the partially upgraded used oil in the presence of hydrogen with a hydrodemetallization catalyst; (b) contacting the effluent of step (a) in the presence of hydrogen with a hydrotreating catalyst; (c) contacting the effluent of step (b) in the presence of hydrogen with a dewaxing catalyst; and (d) contacting the effluent of step (c) in the presence of hydrogen with a hydrotreating catalyst.
Inventors:
Pierre Grand Valette
Antony Patrick Hagan
Laurent Georges Hube
Antony Patrick Hagan
Laurent Georges Hube
Application Number:
JP2003536360A
Publication Date:
February 24, 2005
Filing Date:
October 16, 2002
Export Citation:
Assignee:
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BESLOTEN VENNOOTSHAP
International Classes:
C10M175/00; C10N70/00; (IPC1-7): C10M175/00
Domestic Patent References:
| JP2000256689A | 2000-09-19 | |||
| JP2001515099A | 2001-09-18 | |||
| JPS5437105A | 1979-03-19 | |||
| JPH05239472A | 1993-09-17 |
Foreign References:
| WO1997018278A1 | 1997-05-22 |
Attorney, Agent or Firm:
Kazuho Kawarada