Alkylation with separate alkylation of isobutane with pentenes

Details Alkylation with separate alkylation of isobutane with pentenes Alkylation with separate alkylation of isobutane with pentenes

1995-07-17

1997-07-15

Caldarola, Glenn A.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

With means applying electromagnetic wave energy or...

585301, 585300, 585302, 585331, 585716, 585717, B01J 1000, B01J 1900

Patent

active

056492812

ABSTRACT:
A process is provided to react a feedstock comprising isobutane with pentenes in the presence of sulfuric acid catalyst to produce a high octane alkylate as well as a higher octane isopentane gasoline blending component. A method to reduce sulfuric acid consumption during alkylation is provided wherein a diolefinic contaminant of a pentene system feed is selectively hydrogenated before alkylation. An alkylation method is provided wherein the alkylation feed is separated into a fraction comprising substantially C.sub.4 and lower olefins and a fraction comprising substantially C.sub.5 olefins and the stream comprising C.sub.5 olefins is alkylated in a different reactor than the fraction comprising substantially C.sub.4 and lower olefins.

REFERENCES:
patent: 4304947 (1981-12-01), Hutson, Jr.

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