Vapor-phase esterification of acetic acid with ethanol catalyzed by a macroporous sulfonated styrene-divinylbenzene (20%) resin
Vapor-phase esterification of acetic acid with ethanol catalyzed by a macroporous sulfonated styrene-divinylbenzene (20%) resin
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DOI：
10.1021/ie00062a004
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发表时间：
1987-02
影响因子：
4.2
通讯作者：
J. Giménez;J. Costa;S. Cervera
中科院分区：
文献类型：
--
作者：
J. Giménez;J. Costa;S. Cervera
研究了大孔磺化苯二乙烯基苯（DVB, 20%）树脂在常压下醋酸与乙醇气相（85-120/sup 0/C）酯化反应动力学。一个简单的一阶模型（r = kp/sub 1/）可以很好地拟合反应物比恒定时的实验动力学数据。通过L-H-H-W模型的讨论表明，控制速率的步骤是单位点的表面反应。表观活化能为4000 cal/mol。
The kinetics of the vapor-phase (85-120/sup 0/C) esterification of acetic acid with ethyl alcohol, at atmospheric pressure, catalyzed by a macroporous sulfonated styrene-divinylbenzene (DVB;20%) resin, has been studied. A simple first-order model (r = kp/sub 1/) fits experimental kinetic data properly for a constant reactants ratio. Discussion by means of L-H-H-W models shows that the rate-controlling step is the surface reaction with a single-site mechanism. The apparent activation energy is 4000 cal/mol.