PROCESS FOR THE PREPARATION OF DIMETHYL ETHER

摘要

Process for the preparation of dimethyl ether comprising the steps of : a) providing a methanol containing feed stock; b) introducing the feed stock into a reaction zone within a gas cooled dimethyl ether reactor and passing the feed stock through the reaction zone; c) introducing a cooling gas stream into a cooling space within the gas cooled dimethyl ether reactor; d) reacting the feed stock in the reaction zone in presence of a catalyst being active in the dehydration of methanol to dimethyl ether to obtain a reactor effluent comprising dimethyl ether.