TREATMENT OF ALKYLATION CATALYST POISONS WITH DEHYDROGENATION

摘要

Methods and processes for reducing alkylation catalyst poisoning are described
herein. Such methods generally include contacting ethylbenzene with a
dehydrogenation catalyst to form a dehydrogenation output stream within a
dehydrogenation system and passing at least a portion of the dehydrogenation
output stream to an alkylation system, wherein the at least a portion of the
dehydrogenation output stream contacts an alkylation catalyst. The at least a
portion of the dehydrogenation output stream includes a level of impurities
resulting from offtest and wherein the level of impurities is sufficiently low
to result in essentially no observed effect on the alkylation catalyst life in
comparison with an alkylation system feed absent offtest.