EP 0237655 B1 19920603 - PROCESS FOR CATALYTIC DEWAXING OF MORE THAN ONE REFINERY-DERIVED LUBRICATING BASE OIL PRECURSOR
Title (en)
PROCESS FOR CATALYTIC DEWAXING OF MORE THAN ONE REFINERY-DERIVED LUBRICATING BASE OIL PRECURSOR
Publication
Application
Priority
US 81321485 A 19851224
Abstract (en)
[origin: EP0237655A1] 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.
IPC 1-7
IPC 8 full level
B01J 29/00 (2006.01); C10G 45/58 (2006.01); C10G 65/00 (2006.01); C10G 65/04 (2006.01); C10G 65/16 (2006.01); C10G 67/00 (2006.01); C10G 73/02 (2006.01)
CPC (source: EP KR)
C10G 65/00 (2013.01 - EP); C10G 65/16 (2013.01 - EP); C10G 67/00 (2013.01 - EP); C10G 73/02 (2013.01 - KR)
Citation (examination)
EP 0161833 A2 19851121 - MOBIL OIL CORP [US]
Designated contracting state (EPC)
BE DE ES FR GB IT NL SE
DOCDB simple family (publication)
EP 0237655 A1 19870923; EP 0237655 B1 19920603; AU 592137 B2 19900104; AU 6663986 A 19870625; BR 8606234 A 19870929; CA 1282363 C 19910402; CN 1016249 B 19920415; CN 86108258 A 19871028; DE 3685578 D1 19920709; DE 3685578 T2 19930121; ES 2031820 T3 19930101; IN 168775 B 19910601; JP S62190286 A 19870820; KR 870006168 A 19870709; KR 940008389 B1 19940914; SG 44393 G 19930625
DOCDB simple family (application)
EP 86202162 A 19861203; AU 6663986 A 19861217; BR 8606234 A 19861217; CA 523708 A 19861125; CN 86108258 A 19861217; DE 3685578 T 19861203; ES 86202162 T 19861203; IN 906MA1986 A 19861125; JP 29908786 A 19861217; KR 860010844 A 19861217; SG 44393 A 19930414