Scientific Design Company, Inc.

Hassan Eisa Al-Ahmadi

Ashok S Padia

A method for the epoxidation of an olefin comprising the steps of reacting a feed gas composition containing an olefin, oxygen, and a moderator having an optimal moderator concentration in the presence of an epoxidation catalyst at a first temperature and having a first selectivity; and increasing the optimal moderator concentration to a second moderator concentration and whereby the first selectivity is lowed to a second selectivity and the first temperature to a second temperature.

Epoxidation on process with added moderator

A method for the epoxidation of an olefin comprising the steps of reacting a feed gas composition containing an olefin, oxygen, and a moderator having a post-conditioning step where the catalyst is exposed to reactor feed having a chlorides concentration of from about 5 ppm to about 7 ppm and at a temperature of about 215&#xb0; C. to about 225&#xb0; C.

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Washington Township, NJ, United States of America

Hassan Eisa Al-Ahmadi