A cooled reactor for the preparation of dimethyl ether from methanol

摘要

It is a cooled reactor for the preparation of dimethyl ether by catalytic dehydration of methanol in the gas phase is proposed which, an adiabatic catalyst bed as a start zone, a direct or indirect heat exchange cooled moderator zone, as well as optionally a adiabatic catalyst bed comprises as a conditioning zone comprises. By the use of the reactor according to the invention, the methanol conversion to dimethyl ether is increased and the formation of undesirable byproducts are lowered.