合成二甲醚铜基/HZSM-5催化剂的研究 制备条件和反应条件对催化剂活性的影响

THE STUDY OF COPPERBASED/HZSM5 CATALYSTSFOR DIMETHYL ETHER SYNTHESISInfluence of Preparation and Reaction Conditions on Activity of the Catalysts

合成二甲醚铜基／ＨＺＳＭ５催化剂的研究制备条件和反应条件对催化剂活性的影响李增喜冯玉龙王日杰张继炎（天津大学化工系，天津３０００７２）王延吉（河北工业大学化工系，天津３００１３０）韩森（天津大学Ｃ１化工国家重点实验室，天津３０００７２）关键词...

The catalyst (C1) used to synthesize dimethyl ether by means of CO2 hydrogenation has been prepared with the CuZnAl catalyst for methanol synthesis (CA) and the zeolite HZSM5 by the drymixed method. The influence of reaction conditions , reduction temperature and calcination temperature, as well as composition of the catalysts on their activity for dimethyl ether synthesis has been investigated. When HZSM5 is used as dehydrating component and the mass ratio of HZSM5 to CA is 1∶2, the catalyst C1 has the highest activity. Under the range of experiment, for the catalyst C1, the optimum preparation conditions are: reduction temperature 300℃, calcination temperature 400℃, and the optimum reaction conditions are: temperature 240℃, the space velocity 3500 h-1 and pressure 20 MPa.