Process to alkylate an aromatic with a dilute stream comprising

Details Process to alkylate an aromatic with a dilute stream comprising Process to alkylate an aromatic with a dilute stream comprising

1998-08-18

2000-05-16

Tran, Hien

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By condensation of entire molecules or entire hydrocarbyl...

585448, 585449, C07C 268, C07C 264, C07C 15067

Patent

active

060639768

ABSTRACT:
The present invention provides a method comprising (a) contacting a first reaction mixture comprising an aromatic and a dilute stream comprising ethylene and propylene with a large pore microporous solid acid catalyst, preferably a large pore zeolite catalyst, which is effective to promote alkylation of the aromatic under first conditions effective to maintain a liquid phase comprising the aromatic and effective to cause the propylene to alkylate said aromatic but substantially ineffective to cause the ethylene to alkylate said aromatic, forming propylated aromatic and a second dilute stream comprising ethylene but substantially depleted of propylene, and (b) recovering the propylated aromatic.

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