Method for separating the product effluent of an alkylation proc

Details Method for separating the product effluent of an alkylation proc Method for separating the product effluent of an alkylation proc

1977-08-18

1978-09-19

Gantz, Delbert E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

203 27, 203 23, 203 78, 203 88, 26068348, 26068358, 26068362, C07C 354

Patent

active

041154711

ABSTRACT:
In an alkylation process, the separation of the hydrocarbon effluent is accomplished by modifying the depropanizer tower to provide a lower bottom temperature. The depropanizer bottoms is flash separated to release an isobutane rich recycle stream with higher boiling alkylate being passed to an isostripper for separation with alkylation hydrocarbon effluent not passing through the above sequence. The use of low pressure steam for heat duty in the above sequence reduces energy requirements of the processing combination.

REFERENCES:
patent: 3233007 (1966-02-01), Chapman
patent: 3723565 (1973-03-01), Henderson
patent: 3919342 (1975-11-01), Chapman

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