MEDIUM OIL FOR SLURRY-BED REACTION PROCESS AND PROCESS OF PRODUCING DIMETHYL ETHER

摘要

A medium oil which comprises hydrocarbons as the main ingredient and in which the number of paraffinic carbon atoms is 70% or more of the total number of all the carbon atoms, (b) a medium oil which comprises polybutene as the main ingredient, (c) a medium oil which comprises as the main ingredient a mixture of hydrocarbons represented by the formula (1) CH3-C(CH3)2-[-CH2-C(CH3)2-]n-CH2-R [wherein R is -CH(CH3)2 or -C(CH3)=CH2, and n is 1 to 10], (d) a medium oil which comprises, as the main ingredient, hydrocarbons obtained by the Fischer-Tropsch synthesis, (e) or a medium oil which comprises, as the main ingredient, branched paraffinic hydrocarbons obtained by the hydrogenolysis of hydrocarbons obtained by the Fischer-Tropsch synthesis; and a process for producing dimethyl ether which comprises using the medium oil. (FIG.NIL)