C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
196/131
C10G 65/04 (2006.01) C10G 65/00 (2006.01) C10G 65/16 (2006.01) C10G 67/00 (2006.01)
Patent
CA 1282363
A B S T R A C T PROCESS FOR CATALYTIC DEWAXING OF MORE THAN ONE REFINERY-DERIVED LUBRICATING BASE OIL PRECURSOR 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.
523708
Bowen James R.
Stem Stephen C.
Winquist Bruce H.c.
Bowen James R.
Shell Canada Limited
Smart & Biggar
Stem Stephen C.
Winquist Bruce H.c.
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