摘要
使用AA-1型助剂延长了催化剂甲醇钠的寿命:40h运转后的甲酸甲酯时空产率约为对照实验的3倍。使用管式反应器在P_(CO)=5MPa下运转,CO单程转化率与甲酸甲酯单程收率均高达95％,甲酸甲酯时空产率亦高达645g/(1·b),文献中未见类似结果。使用一种Cu-ZnO/Al_2O_3甲酸甲酯氢解催化剂,它能抵抗浓度高达16％的CO中毒。
The present process is less energy intensive compared with exsisting processes. A proprietary additive (AA-1) can markedly inhibit the deactivation of CH_3ONa catalyst for methanol carbonyla tion. The space-time yield (STY) ot methyI formate (MF)is 625gl^(-1)h^(-1) after 40 hours on stream on using the additive, while the yield is only 190gl^(-1)h^(-1) without using the additive under the same reaction conditions. By using four types of tubular reactors without any mechanical rotary parts and highspeed circulation of the reactants for the earbonylation at Pco=5MPa, we obtained a 95％ single-pass conversion of CO and 645gl^(-1)h^(-1) of STY of MF. A novel Cu-ZnO/Al_2O_3 catalyst for MF hydrogenolysis to methanol is reported in this paper. The catalyst is characterized by resistance to poisoning of high concentration CO up to 16.2vol％.
出处
《石油化工》
CAS
CSCD
北大核心
1993年第1期10-14,共5页
Petrochemical Technology
关键词
羰化-氢解法
甲醇
甲酸甲酯
合成
carbonylation, hydrogenolysis, methanol, methyl formate
