间甲苯二胺脱水精馏工艺

全文下载： 202302004.pdf

文章编号： 1672-6987（2023）02-0026-05； DOI： 10.16351/j.1672-6987.2023.02.004

孔令启， 吴林哲， 董振寰， 杨安明， 李玉刚（青岛科技大学 计算机与化工研究所，山东 青岛 266042）

摘要： 为降低间甲苯二胺脱水过程中的能耗，提出了双效精馏和热泵精馏节能工艺。使用Aspen Plus流程模拟软件，对该体系的常规精馏、3种双效精馏、热泵精馏进行模拟优化，得出间甲苯二胺脱水过程的最佳操作条件和设备参数；最后分别对常规精馏、双效精馏和热泵精馏的综合能耗和最小年度总费用（TAC）进行了分析对比。研究结果表明: 热泵精馏的节能效果最好，比常规精馏能耗节约了475%，年度总费用节约了319%。

关键词： 间甲苯二胺； 双效精馏； 热泵精馏； 流程模拟； 节能

中图分类号： TQ 028文献标志码： A

引用格式： 孔令启， 吴林哲， 董振寰， 等. 间甲苯二胺脱水精馏工艺研究［J］. 青岛科技大学学报(自然科学版), 2023, 44(2): 26-30.

KONG Lingqi, WU Linzhe, DONG Zhenhuan, et al. Dehydration of m-toluene diamine through various distillation processes［J］. Journal of Qingdao University of Science and Technology（Natural Science Edition), 2023, 44(2): 26-30.

Dehydration of m-Toluene Diamine Through Various

Distillation Processes

KONG Lingqi, WU Linzhe, DONG Zhenhuan, YANG Anming, LI Yugang

(Research Center for Computer and Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China)

Abstract: In order to reduce energy consumption in the dehydration process of m-toluene diamine, double-effect distillation and heat pump distillation were proposed in this paper. The conventional distillation, three kinds of double-effect distillation and heat pump distillation were simulated and optimized by using Aspen Plus process simulation software, and the optimal operating conditions and equipment parameters of m-toluene diamine dehydration process were obtained. Finally, the comprehensive energy consumption and minimum annual total (TAC) of conventional distillation, double-effect distillation and heat pump distillation were analyzed and compared. The results show that heat pump distillation has the best energy saving effect, saving 475% energy consumption and 319% annual total cost compared with conventional distillation.

Key words: m-toluene diamine; double effect distillation; heat pump distillation; process simulation; energy saving

收稿日期： 2022-05-15

基金项目： 山东省自然科学基金项目（ZR2020MB145）.

作者简介： 孔令启（1973—），男，副教授.