METHOD FOR STARTING UP A DME SYNTHESIS REACTOR

摘要

A method for starting up a DME synthesis reactor in which methanol is converted by dehydration to dimethyl ether on a solid catalyst, wherein the catalyst is heated up with condensing methanol vapor, possibly in several steps. In a final treatment step with superheated methanol vapor, the catalyst is dried and its temperature is raised to the starting temperature of the methanol dehydration.