Reducing xylene loss in the catalytic isomerization of a xylene-

Details Reducing xylene loss in the catalytic isomerization of a xylene- Reducing xylene loss in the catalytic isomerization of a xylene-

1989-09-21

1991-05-14

Davis, Curtis R.

Chemistry of hydrocarbon compounds

Adding hydrogen to unsaturated bond of hydrocarbon, i.e.,...

Hydrocarbon is contaminant in desired hydrocarbon

585477, 585481, C07C 7163, C07C 522

Patent

active

050157949

ABSTRACT:
Removal of the small amount of lower molecular weight olefins produced by certain isomerization catalysts during the catalytic isomerization of xylene results in reduced xylene loss. Such removal can be conveniently effected by use of a mild hydrogenation catalyst separate from the isomerization catalyst in the process.

REFERENCES:
patent: 3448039 (1969-06-01), Tarham
patent: 4118429 (1978-10-01), Fitsch et al.
patent: 4654456 (1987-03-01), Nimry

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