化工进展2013，Vol.32Issue(4)：750-756,768,8.DOI:10.3969/j.issn.1000-6613.2013.04.004
萃取精馏分离碳酸二甲酯-乙醇二元共沸物
Separation of binary azeotrope ethanol-dimethyl carbonate by extractive distillation
摘要
Abstract
Vapor-liquid equilibrium data of the systems were measured at 101.3 kPa with ethanol-DMC, DMC-furfural and ethanol-DMC-furfural in a solvent ratio of 1 : 1. It was shown that furfural can enlarge the relative volatility of ethanol and DMC, and the azeotropic point disappeared when mole fraction of furfural reached 0.25, indicating the feasibility of separating the ethanol-DMC mixture using extractive distillation with furfural as the solvent. Aspen Plus software was used to simulate the continuous extractive distillation processes of ethanol-DMC separation, and the single-column continuous extractive distillation process was preferred than the double-column process.关键词
碳酸二甲酯/乙醇/糠醛/萃取精馏Key words
dimethyl carbonate/ethanol/furfural/extractive distillation分类
化学化工引用本文复制引用
董营,肖颖,黄耀东,白鹏..萃取精馏分离碳酸二甲酯-乙醇二元共沸物[J].化工进展,2013,32(4):750-756,768,8.
