Alkylation process

Details Alkylation process Alkylation process

1979-08-27

1981-01-06

Davis, C.

Chemistry of hydrocarbon compounds

Saturated compound synthesis

By condensation of a paraffin molecule with an olefin-acting...

585723, C07C 256, C07C 258

Patent

active

042438306

ABSTRACT:
The present process is particularly adapted to those situations where a refiner lacks sufficient isobutane to completely alkylate an olefin feedstock. A field butane stream is admixed with an olefin stream, and the mixture is fractionated to provide an isobutane-olefin concentrate and a normal butane concentrate. The former is increased in pressure and reacted in contact with a hydrofluoric acid alkylation catalyst. The latter is introduced into the reaction zone wherein it is vaporized via indirect contact with the warm reaction mixture contained therein. Vaporous normal butane is recycled into the fractionation facility whereby the exothermic heat of the alkylation reaction is utilized to fractionate the first mentioned field butanes-olefin mixture. Alkylation reactions can thus be conducted at subambient temperatures resulting in improved alkylate product quality. This technique also obviates the need of a cooling water system, thus eliminating any possibility of contaminating water bodies with the acid catalyst.

REFERENCES:
patent: 3867473 (1975-02-01), Anderson
patent: 4139573 (1979-02-01), Carson
patent: 4144281 (1979-03-01), Chapman et al.

Affiliated with

Also associated with

Rating

Alkylation process does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Alkylation process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Alkylation process will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-286256