Title:
CATALYTIC DEWAXING PROCESS FOR MORE THAN TWO KINDS OF REFINERY-DERIVED LUBRICANT BASE OIL PRECURSORS
Document Type and Number:
Japanese Patent JPS62190286
Kind Code:
A
Abstract:
A process for catalytic dewaxing of more than one refinery-derived lubricating base oil precursor which comprises contacting in a first reaction zone in the presence of a hydrogen-containing gas at hydrodewaxing conditions a first feed stream comprising a first refinery-derived raffinate lubricating base oil precursor which contains a first wax comprising straight-chain paraffins with a first hydrodewaxing catalyst selective for conversion of said first wax and contacting in the presence of a hydrogen-containing gas at hydrodewaxing conditions in a parallel-situated second reaction zone a second refinery-derived raffinate lubricating base oil precursor which contains a second wax containing branched and/or cyclic hydrocarbons with a second hydrodewaxing catalyst selective for conversion of said second wax, and optionally contacting in one or more further reaction zones further refinery-derived waxy raffinate lubricating base oil precursor feed streams in the presence of a hydrogen-containing gas at hydrodewaxing conditions with a hydrodewaxing catalyst, and removing at least two parallel effluent streams of refinery dewaxed lubricating base oils from said reaction zones.
Inventors:
SUTEFUAN CHIYAARUZU SUTEMU
BURUUSU HAAMAN CHIYAARUZU UINK
JIEEMUZU RAMUSEI BOOUEN
BURUUSU HAAMAN CHIYAARUZU UINK
JIEEMUZU RAMUSEI BOOUEN
Application Number:
JP29908786A
Publication Date:
August 20, 1987
Filing Date:
December 17, 1986
Export Citation:
Assignee:
SHELL INT RESEARCH
International Classes:
B01J29/00; C10G45/58; C10G65/00; C10G65/04; C10G65/16; C10G67/00; C10G73/02; (IPC1-7): B01J29/06; C10G45/58; C10G65/04; C10G73/02
Domestic Patent References:
| JPS60240793A | 1985-11-29 | |||
| JPS4736842A | ||||
| JPS57100190A | 1982-06-22 |
Foreign References:
| US4211635A | 1980-07-08 |
Attorney, Agent or Firm:
Kawahara Kazuho