液固传质系数和催化剂包内液体流速的测定

Measurements of liquid-solid mass transfer coefficient and liquid flow-rate within catalyst capsule

通过气液在塔内的逆向流动 ,测定了液固传质系数和催化剂包内流速 .实验在常压、2 5℃下进行 ,采用内径为 5 6mm的玻璃管 ,玻璃管中的催化剂捆束总高度为 5 2 8mm .对实验数据进行回归处理 ,得到了一些关联式 ,为醋酸甲酯催化精馏水解过程的模拟提供了基础 .

The liquid-solid mass transfer coefficients and liquid flow-rate within the catalyst capsule have been measured in a countercurrent flow column by this study. The measurements were completed under the temperature 25?℃ and the normal pressure in a glass column with the diameter 56?mm and the catalyst-bed-height 528?mm. The correlations for calculation of the liquid-solid mass transfer coefficients and liquid flow-rate within the catalyst capsule were obtained by regressing the experimental data, which can be applied to simulate the catalytic distillation process for the hydrolysis of the methyl acetate.