Kinetics of the alkylation of phenol with methanol over magnesium-aluminium calcined hydrotalcites

被引:34
作者
Velu, S [1 ]
Swamy, CS [1 ]
机构
[1] INDIAN INST TECHNOL,DEPT CHEM,MADRAS 600036,TAMIL NADU,INDIA
关键词
alkylation; hydrotalcite; kinetics;
D O I
10.1016/0926-860X(96)00148-2
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Vapour phase alkylation of phenol with methanol over magnesium-aluminium calcined hydrotalcites (MgAl-CHT) with an Mg/Al atomic ratio of 3-10 has been investigated in detail and reported previously. This study concerns the evaluation of the kinetic parameters such as the activation energy (E(a)) and Arrhenius frequency factor (In A(0)) for the disappearance of phenol employing the Power law equation assuming pseudo first order kinetics. The kinetic parameters were found to be in good agreement with the specific activity of the catalysts. The existence of the compensation effect between E(a) and In A(0) has been tested.
引用
收藏
页码:225 / 230
页数:6
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