C5/C6 isomerization process

Details C5/C6 isomerization process C5/C6 isomerization process

1991-01-29

1991-10-22

Davis, Curtis R.

Chemistry of hydrocarbon compounds

Saturated compound synthesis

By isomerization

585750, 585751, C07C 513

Patent

active

050597418

ABSTRACT:
An integrated process for the production of a refinery gasoline pool with enhanced octane value from a pentane and hexane containing feedstock by first contacting with an isomerization catalyst; fractionating the resulting product into an iC.sub.5 product stream forming part of said refinery gasoline pool and a bottom stream containing nC.sub.5, nC.sub.6, mono-branched C.sub.6 and dibranched C.sub.6 ; passing said bottom stream through an adsorption bed with dibranched C.sub.6 passing thru unabsorbed; desorbing nC.sub.5, nC.sub.6 and monobranched C.sub.6 from the absorption bed; and recycling the desorbed nC.sub.5, nC.sub.6 and monobranched C.sub.6 to the isomerization zone.

REFERENCES:
patent: 4176053 (1979-11-01), Holcombe
patent: 4210771 (1980-07-01), Holcombe
patent: 4717784 (1988-01-01), Stem et al.
patent: 4804802 (1989-02-01), Evans et al.
patent: 4855529 (1989-08-01), Stem et al.

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