Process for improving gasoline cuts and conversion into gas...

Chemistry of hydrocarbon compounds – Unsaturated compound synthesis – Triple-bond product

Reexamination Certificate

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C585S324000, C585S326000, C585S327000, C585S329000, C585S330000, C585S518000, C585S533000, C210S651000, C210S806000

Reexamination Certificate

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07847141

ABSTRACT:
The invention relates to a process for converting a hydrocarbon charge of linear and branched olefins, comprises the following stages:a) a stage of membrane separation of the hydrocarbon charge under conditions making it possible to produce a cut β containing the majority of the linear olefins present in said charge, and a cut γ containing the majority of the branched olefins,b) a stage of treatment of the linear olefins contained in the effluents originating from the membrane separation stage (cut β) under moderate oligomerization conditions,c) a stage of distillation separation of the effluents originating from the oligomerization stage into at least two cuts,d) a stage of hydrogenation of the cut η under conditions for obtaining a gas oil with a high cetane number.

REFERENCES:
patent: 2388095 (1945-10-01), Stahly
patent: 6051517 (2000-04-01), Funke et al.
patent: 2002/0111521 (2002-08-01), O'Rear
patent: 2003/0171632 (2003-09-01), DuToit
patent: 2004/0033370 (2004-02-01), Chau et al.
patent: 3030998 (1982-04-01), None
patent: WO 96/20988 (1996-07-01), None

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