ASPEN模拟反应精馏生产醋酸甲酯及工业化探讨

采用Aspen Plus软件模拟催化反应精馏生产醋酸甲酯的工艺过程。考察操作压力、醋酸进料位置、回流比和醋酸/甲醇进料比对反应精馏塔塔顶醋酸甲酯纯度的影响。得出反应精馏塔优化操作条件为:操作压力1atm、醋酸在第5块板进料、回流比为1.9、酸醇比为1.6。在模拟计算的基础上,初步探讨工业化装置设计的技术关键点。

Probe on Simulation of Reactive Distillation Process for Producing Methyl Acetate by Using ASPEN and its Industrialization

Simulate the catalytic reaction distillation process to produce methyl acetate by using Aspen Plus software. Investigate the effect of the operating pressure,the feed-point location of acetic acid,reflux ratio and the acetic acid /methanol feeding ratio on the purity of methyl acetate at the top of the reaction distillation tower. The optimum operating conditions for the reaction distillation tower are obtained as follow:operating pressure of 1 atm,acetic acid fed at the fifth tray,reflux ratio of 1.9,methyl acetate/methanol feeding ratio of 1.6. On the basis of simulation calculation,the preliminary discussion is made on the technical key points for the industrialization unit design.