Patents

The invention provide an improved process for the preparation of phosphorous containing mesoporous alumina catalyst for selective dehydration of methanol to dimethyl ether. The process provides a single step selective vapour phase dehydration of methanol to produce dimethyl ether over phosphorous containing mesoporous alumina (P/Al203) catalyst at a temperature 250-300 degree Celcius. The process provides methanol conversion of 45-100% with selectivity up to 100%.