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U.S. Department of Energy
Office of Scientific and Technical Information

Xylene isomerization

Patent ·
OSTI ID:6608028

Isomerization of xylenes in admixture with ethylbenzene by contact with a zeolite catalyst such as zsm-5 is improved by use of zeolite which has been steamed at high temperature to reduce activity, the reaction being at a temperature above about 700/sup 0/F. At these conditions, conversion of ethylbenzene follows a different reaction path which permits high conversion of ethylbenzene to benzene without loss of xylenes of disproportionation.

Assignee:
Mobil Corp
Patent Number(s):
US 4236996
OSTI ID:
6608028
Country of Publication:
United States
Language:
English