PRODUCTION OF ALKENYLBENZENE

摘要

PURPOSE:To industrially and stably produce an alkenylbenzene under reactional conditions in which the ratio of alkenylbenzene/raw material alkylbenzene is reduced with high productivity in a method for producing the alkenylbenzene using an isothermal reactor. CONSTITUTION:The objective method for producing an alkenylbenzene comprises the arrangement of 20-40vol.% dehydration catalyst with <20wt.% content of K2CO3 and 80-60vol.% dehydration catalyst with >=20wt.% content of the K2CO3 in the increasing order of the potassium content from the inlet part of an isothermal reactor therein in a method for producing the alkenylbenzene at a high temperature in the presence of the dehydration catalyst and steam by using the isothermal reactor.