摘要
研究了常压下甲醇脱氢制甲酸甲酯的膜催化反应．采用离子交换法制备的铜复合膜在１６０～２６０℃表现出较高的反应活性，２４０℃时甲醇转化率和甲酸甲酯收率分别为５７３％和５００％，而相应固定床反应器的甲醇转化率和甲酸甲酯收率分别为４３１％和３６９％．铜钯复合膜反应器能使反应选择分离同时进行，但产物甲酸甲酯的总收率不及铜复合膜．还对铜复合膜的制备条件作了初步探讨．
Dehydrogenation of methanol to methyl formate (MeF) in Cu and Cu Pd catalytic membrane reactors (CMR) at atmospheric pressure was studied. For the topic reaction, the Cu composite catalytic membrane reactor prepared by ion exchange method exhibits better performance than the fixed bed reactor (FBR) under the same reaction conditions. At 240℃, the conversion of methanol and yield of MeF are 57 3% and 50 0% in CMR, while in FBR, 43 1% and 36 9%, respectively. The Cu Pd composite membrane behaves two functions of catalysis for the topic reaction and permeaselectivity for hydrogen at the same time, but its catalytic activity for dehydrogenation of methanol is lower than that of Cu composite CMR. Based on the topic reaction, some impact parameters on preparation of membranes have also been investigated in detail.
出处
《催化学报》
SCIE
CAS
CSCD
北大核心
1998年第1期14-17,共4页
基金
国家自然科学基金
国家教委博士点基金
关键词
四醇
催化脱氢
甲酸甲酯
铜钯复合膜
催化剂
Copper composite membrane, Copper palladium composite membrane, Methanol, Catalytic dehydrogenation, Methyl formate
