Process for HF-catalyzed alkylation of aromatic hydrocarbons

Details Process for HF-catalyzed alkylation of aromatic hydrocarbons Process for HF-catalyzed alkylation of aromatic hydrocarbons

1979-10-09

1980-12-02

Davis, Curtis R.

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By condensation of entire molecules or entire hydrocarbyl...

585464, C07C 266

Patent

active

042373280

ABSTRACT:
A process for the HF-catalyzed alkylation of aromatic hydrocarbons is disclosed. A liquid-phase alkylation zone effluent stream comprising product alkylaromatic hydrocarbon is passed into an intermediate point of a first fractionation column. A sidecut is removed from the first column at a higher intermediate point and passed into a sidecut stripping column. The bottoms stream of the sidecut stripping column contains the feed aromatic and about 4-10 mole percent paraffinic hydrocarbons and is recycled to the alkylation zone. The overhead vapor stream of the sidecut stripping column is passed into the first column to aid in fractionation.

REFERENCES:
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patent: 3413373 (1968-11-01), Bloch
patent: 3426092 (1969-02-01), Carson et al.
patent: 3484498 (1969-12-01), Berg
patent: 3494971 (1970-02-01), Fenske
patent: 3501543 (1970-03-01), Hervert
patent: 3721720 (1973-03-01), Chapman et al.
patent: 3830865 (1974-08-01), Anderson
patent: 3950448 (1976-04-01), Witt
patent: 4072730 (1978-02-01), Winter

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