Methanol synthesis via methylformate in a slurry reactor
Methanol synthesis via methylformate in a slurry reactor
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在浆态反应器中通过甲酸甲酯合成甲醇
DOI：
10.1016/0378-3820(89)90074-x
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发表时间：
1989
影响因子：
7.5
通讯作者：
I. Wender
中科院分区：
文献类型：
--
作者：
Z. Liu;J. Tierney;Y. Shah;I. Wender
研究了由CO和H2合成甲醇的反应顺序，其中甲醇首先羰基化为甲酸甲酯，然后加氢为甲醇。该反应在单个机械搅拌浆料反应器中使用常用的均相甲酸盐合成催化剂（CH3OK）和多相催化剂（亚铬酸铜）在140至180°C的温度和38至62巴的压力下同时发生。并发操作并不是两个单独反应的简单相加。 CH3OK 很可能吸附在亚铬酸铜上。甲醇的形成速率明显高于各个反应的预测，并且CO2对CH3OK催化的甲醇羰基化和甲酸甲酯氢解的有害影响是可逆的。羰基化反应在所研究的条件下处于平衡。发现反应速率随时间逐渐降低，这归因于 CO 对氢解催化剂的影响。对浆态反应器中的同步甲醇合成与甲醇合成的替代方法进行了比较。
The synthesis of methanol from CO and H2using a reaction sequence in which methanol is first carbonylated to methylformate and then hydrogenated to methanol was studied. The reaction occurred concurrently in a single mechanically agitated slurry reactor using the usual homogeneous formate synthesis catalyst (CH3OK) and a heterogeneous catalyst (copper-chromite) at temperatures of 140 to 180°C and pressures of 38 to 62 bar. The concurrent operation is not a simple summation of the two individual reactions. It is likely that the CH3OK is adsorbed on the copper-chromite. The rate of formation of methanol is significantly higher than predicted from the individual reactions and the deleterious effect of CO2on the CH3OK catalyzed carbonylation of methanol and on the hydrogenolysis of methyl formate is reversible. The carbonylation reaction is in equilibrium under the conditions studied. A progressive reduction in reaction rate with time was found and is attributed to the effect of CO on the hydrogenolysis catalyst. Comparisons are made of the concurrent methanol synthesis in a slurry reactor with alternative methods of methanol synthesis.