化工进展2024，Vol.43Issue(12)：6608-6614,7.DOI:10.16085/j.issn.1000-6613.2023-1956
碳酸丙烯酯为萃取剂萃取精馏分离碳酸二甲酯-甲醇流程模拟与经济性评价
Simulation and economic evaluation of separating dimethyl carbonate-methanol by extractive distillation with propylene carbonate as solvent
马长金 1李腾 1安维中 1林子昕 1别海燕1
作者信息
- 1. 中国海洋大学化学化工学院,山东 青岛 266100
- 折叠
摘要
Abstract
Aiming at the separation of DMC-MeOH azeotrope at the top of the tower for dimethyl carbonate(DMC)production by reactive distillation with propylene carbonate(PC)and methanol(MeOH)as raw materials,a extractive distillation process with PC as solvent was presented.The simulation and economic evaluation were carried out on the Aspen Plus software platform.The feasibility and selectivity of the solvent were investigated,the process flow scheme was determined,and the process parameters of the extractive distillation process were optimized.The energy consumption and economy of PC extractive distillation and heat integrated pressure swing distillation for separating DMC-MeOH azeotrope were compared.The results show that the total energy consumption and total annual cost(TAC)of the extractive distillation process are reduced by 53.9%and 49.5%,respectively,compared with the pressure swing distillation process,showing the feasibility and technical and economic advantages of the extractive distillation process.关键词
碳酸丙烯酯/萃取精馏/碳酸二甲酯/优化设计/经济评价Key words
propylene carbonate/extractive distillation/dimethyl carbonate/optimal design/economic evaluation分类
化学化工引用本文复制引用
马长金,李腾,安维中,林子昕,别海燕..碳酸丙烯酯为萃取剂萃取精馏分离碳酸二甲酯-甲醇流程模拟与经济性评价[J].化工进展,2024,43(12):6608-6614,7.
