Methods for conditioning ethylene epoxidation catalysts and related methods for the production of ethylene oxide

摘要

A process for conditioning an ethylene epoxidation catalyst is provided. The present conditioning method comprises contacting an ethylene epoxidation catalyst comprising a carrier having a silver and rhenium promoter deposited thereon at a temperature of at least 180 ° C and at most 250 ° C for a period of at least 2 hours with a conditioning feed gas comprising oxygen, Contacting the conditioning feed gas with the ethylene epoxidation catalyst occurs in the epoxidation reactor and in the absence of ethylene. An associated method for epoxidation of ethylene is also provided.