微分模型用于醋酸甲酯催化精馏水解中试过程的模拟计算

Application of the Differential Model to the Simulation of Catalytic Distillation Hydrolysis Process of Methyl Acetate

用微分模型对醋酸甲酯催化精馏水解中试过程进行了模拟计算, 反应精馏段催化剂包的气相、液相、液- 固相传质系数和动态持液量用自行测定的经验关联式计算, 提馏段的填料层传质系数用onta 的关联式, 反应速率用自行测定的反应动力学方程式和催化剂包的效率因子进行计算. 模拟计算结果与实验数据吻合良好.

The differential model for the simulation of catalytic distillation process is applied to the simulation of the pilot-plant test of catalytic distillation process for the hydrolysis of methyl acetate.The mass transfer coefficients and the dynamic liquid holdup for catalyst-bundle in the reaction-distillation zone are calculated by using the correlations regressed from experimental measurements,and for the stripping zone,onta's correlation is used.The reaction rate is calculated by using the correlation regressed from measured macroscopic kinetic formula and effectiveness factor of catalyst bundle.The simulated results are in good agreement with results from the experiment.