Alkylation process

Details Alkylation process Alkylation process

1979-08-02

1981-02-03

Davis, Curtis R.

Chemistry of hydrocarbon compounds

Saturated compound synthesis

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

422235, 585717, 585719, 585723, C07C 256, F28D 700

Patent

active

042490308

ABSTRACT:
Propylene and butylenes are separately acid alkylated with at least one isoparaffin. Expansion and liquid-vapor separation is utilized to separate the propylene from the butylenes. The use of expansion and separation improves the energy efficiency of the alkylation process. The energy efficiency of the alkylation process is further improved by utilizing the bottoms product from the acid stripper associated with the isostripper to cool the acid being supplied to the riser reactor. The size requirements of the isostripper are also reduced by using liquid-vapor separation to remove at least a portion of the unreacted isoparaffin from the alkylated butylenes.

REFERENCES:
patent: 2342677 (1944-02-01), Linn
patent: 3113987 (1963-12-01), Hutson, Jr.
patent: 3158661 (1964-11-01), Plaster et al.
patent: 3763266 (1973-10-01), Henderson
patent: 4008292 (1977-02-01), James
patent: 4059649 (1977-11-01), Chapman et al.
patent: 4112010 (1978-09-01), Dixon
patent: 4144281 (1979-03-01), Chapman et al.

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