摘要
提出了溶碱萃取精馏制取无水乙醇的方法 .通过恒沸点相对挥发度的测定与全浓度下的汽液平衡测定 ,考察了溶碱萃取剂对乙醇—水体系汽液平衡的影响 .采用LIQUAC模型与Wilson模型相结合的关联计算方法 ,进行了汽液平衡数据的预测与萃取精馏工艺条件的模拟 .结果表明 ,与传统的溶盐萃取剂相比 。
An extrative rectification with alkali for absolute ethanol production was suggested. The effect of alkali extraction solvent on vapor liguid equilibrium of ethanol water system was studied by determinations of relative volatility at azotropic point and vapor liquid equilibrium under total concentration. Prediction on vapor liquid equlibrium and simulation of process prameters for extraction rectification were made using interactive calculation method by combination of LIQUAC and Wilson Models. The results shows that the separation of ethanol water system is better by ertraction agent with alkali than by traditional extractive rectification with salt solvent.
出处
《南京师范大学学报（工程技术版）》
CAS
2003年第4期11-14,共4页
Journal of Nanjing Normal University(Engineering and Technology Edition)
关键词
汽液平衡
萃取精馏
关联计算
extractive rectification, VLE ethanol, interactive calculation
