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提出用反应隔壁精馏塔合成乙酸丁酯的工艺流程,以反应隔壁精馏塔代替常规乙酸正丁酯反应精馏塔和乙酸正丁酯产品精制塔,将反应隔壁精馏过程和常规反应精馏生产过程模拟比较,在相同生产能力和产品纯度要求下,反应隔壁精馏塔可降低能耗30%以上,同时可减少设备投资。最后,对提出的反应隔壁生产乙酸丁酯的生产流程进行优化,考察进料位置、采出进料比、副塔液相分配比等因素对乙酸丁酯生产过程能耗和乙酸丁酯产品纯度的影响,并得到适宜的生产操作条件。
The process of synthesis of butyl acetate by reaction wall separation distillation column was proposed. The reaction partition wall distillation column was used instead of conventional n-butyl acetate reaction rectification column and n-butyl acetate product purification column. The reaction of the reaction partition wall and conventional reaction fine Distillation process simulation comparison, in the same production capacity and product purity requirements, the reaction partition distillation column can reduce energy consumption by more than 30%, while reducing equipment investment. Finally, the production process of butyl acetate produced by the next reaction was optimized. Factors such as feed location, feed ratio, liquid phase distribution ratio of secondary column and other factors were used to optimize the energy consumption of butyl acetate production and the purity of butyl acetate The impact, and get the appropriate production conditions.