Process for depropanizing benzene

Details Process for depropanizing benzene Process for depropanizing benzene

1995-06-01

1997-02-04

Pal, Asok

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By condensation of entire molecules or entire hydrocarbyl...

585446, 585802, 585804, 203 21, 203 27, 203DIG8, C07C 264, C07C 15067

Patent

active

056000499

ABSTRACT:
In the alkylation of benzene with propylene in a distillation column reactor to produce cumene the overheads from the distillation reactor are fed to a depropanizer where the unreacted benzene is separated from C.sub.3 's. Liquid propylene feed for the distillation column reactor is vaporized by indirect heat exchange with the overheads from the depropanizer to condense the overheads, thereby reducing the pressure in the depropanizer below what would be normally achieved with conventional condensing systems.

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