Patent ID: 7015255
Filing Date: 2006-03-21
Classification: B01J,C07C,Y02P

Abstract:
1. A process of producing dimethyl ether, comprising a step of passing a mixture containing carbon monoxide and hydrogen through a catalyst slurry containing a mixture of (1) a medium oil selected from the group consisting of (a) a medium oil wherein a main component is a polybutene, and the number of paraffinic carbon atoms contained in the medium oil is 70% or more with respect to a total number of carbon atoms contained in the medium oil, and (b) a medium oil wherein a main component is a mixture of hydrocarbons of the formula (1): wherein R is —CH(CH 3 ) 2 or —C(CH 3 )═CH 2 , and n is 1 to 10, and the number of paraffinic carbon atoms contained in the medium oil is 70% or more with respect to a total number of carbon atoms contained in the medium oil, (2) a catalyst for synthesizing methanol, and (3) a catalyst for dehydrating methanol and a catalyst for shifting, or a catalyst for dehydrating methanol and shifting.