Fremgangsmåter for fremstilling av dimetyleter, samt utvinning fra metanol

摘要

A process for production and recovery of dimethyl ether by dehydration of methanol which significantly reduces the distillation duties associated to the preparation of the fresh methanol feed stock and/or the recovery of unconverted methanol for use as recycle feed stock to the dimethyl ether production process while maintaining a high rate of conversion of methanol to dimethyl ether.