HYDROTHERMAL TREATMENT OF PHOSPHORUS-MODIFIED ZEOLITE CATALYSTS

摘要

treatment of ZSM-5 type zeolite catalyst has a silica / alumina molar ratio is greater than or equal to about 200 ZSM-5 zeolite is performed by treating the catalyst with a phosphorus compound . Is of the treated ZSM-5 zeolite catalyst is calcined and jeungyeol . Jeungyeol of the catalyst is carried out at a temperature of less than about 300 . Holds any other metal in addition to the phosphorus -treated ZSM-5 zeolite catalyst is provided from any treatment of the ZSM-5 zeolite with a compound containing other metal in addition to less than 0.05% by weight of the catalyst . These catalysts may be used in aromatic alkylation reactor by contacting under conditions suitable for aromatic alkylation catalyst in the reactor feed and the aromatic hydrocarbon and alkylating agent . May offer a joint supply of water to the reactor for aromatic alkylation water .