Alkylation process utilizing HF regenerator stream to a multi-tr

Details Alkylation process utilizing HF regenerator stream to a multi-tr Alkylation process utilizing HF regenerator stream to a multi-tr

1974-12-16

1976-05-11

Gantz, Delbert E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 354

Patent

active

039564169

ABSTRACT:
In prior art HF alkylation processes, an HR regenerator overhead vapor stream is processed in various ways including combining it with overhead vapor streams of an isoparaffin stripper or an HF stripper, or condensing, settling, and pumping it in a regenerator overhead system to an HF alkylation reaction zone. In the present HF alkylation system comprising a reaction and settling zone, an acid regeneration zone, and a products fractionation zone including an isoparaffin stripper from which a side-cut recycle stream containing principally isoparaffin is withdrawn, an improvement is made by taking overhead vapor from the regenerator and introducing the vapor directly into the isoparaffin stripper at a locus above that at which the side-cut recycle stream is withdrawn.

REFERENCES:
patent: 3410759 (1968-11-01), Fontenot et al.
patent: 3478125 (1969-11-01), Chapman
patent: 3763265 (1973-10-01), Hutson, Jr. et al.

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