Selective production of olefins

Details Selective production of olefins Selective production of olefins

1981-02-02

1982-11-16

Davis, Curtis R.

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

From nonhydrocarbon feed

C07C 268, C07C 522

Patent

active

043595952

ABSTRACT:
A lower alcohol and/or ether feed is selectively converted to a mixture of light olefins, including ethylene and propylene, by catalytic contact of the feed material with a catalyst comprising one or more zeolites characterized by a silica to alumina mole ratio of at least 12 and a constraint index in the approximate range of 1 to 12. The catalytic conversion is carried out in the presence of bulky heterocyclic organic nitrogen compounds to suppress the formation of mononuclear aromatics. The process of this invention is particularly useful in the production of C.sub.2 -C.sub.3 olefins from methanol or dimethyl ether.

REFERENCES:
patent: 4300011 (1981-11-01), Rollmann

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