Plural stages of hydrofluoric acid alkylation utilizing separate

Details Plural stages of hydrofluoric acid alkylation utilizing separate Plural stages of hydrofluoric acid alkylation utilizing separate

1979-04-23

1980-09-02

Crasanakis, George

Chemistry of hydrocarbon compounds

Saturated compound synthesis

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

585723, C07C 354

Patent

active

042208068

ABSTRACT:
A process is disclosed for the alkylation of an isoparaffinic hydrocarbon with an olefin-acting alkylating agent. The isoparaffinic hydrocarbon is commingled with a first portion of said alkylating agent in a first alkylation reaction zone at alkylation reaction conditions in contact with a hydrofluoric acid catalyst. The acid phase of the effluent from the first alkylation reaction zone is separated, and the hydrocarbon phase, comprising alkylate and unreacted isoparaffin, is commingled with a second portion of said alkylating agent at alkylation reaction conditions in a second alkylation reaction zone in contact with a hydrofluoric acid catalyst separately charged thereto, the hydrofluoric acid catalyst being that separated from the effluent of the first alkylation reaction zone. The acid phase is separated from the effluent from the second alkylation reaction zone and recycled to the first alkylation reaction zone, and the alkylate product is recovered from the hydrocarbon phase.

REFERENCES:
patent: 3246047 (1966-04-01), Chapman et al.
patent: 3911043 (1975-10-01), Anderson
patent: 4046516 (1977-09-01), Burton et al.

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