Effect of catalyst concentration on catalytic performance in liquid phase dimethyl ether synthesis from syngas

摘要

The effect of catalyst concentration on its catalytic performances was studied in liquid phase dimethyl ether synthesis from syngas under pressure of 4.0 Mpa, exit gas flowrate of 45 L/h, impeller speed of 1250 rpm and temperature varying in the range for 260 to 300 deg. C. CO conversion, H_2 conversion, and methanol selectivity increased with catalyst concentration, whereas DME productivity and its selectivity decreased with catalyst concentration increasing.