化工进展2017，Vol.36Issue(9)：3243-3249,7.DOI:10.16085/j.issn.1000-6613.2016-2065
共沸精馏分离2-甲基吡啶和水
Separation of the binary system with 2-mehtylpyridine and water by azeotropic distillation
摘要
Abstract
Azeotropic distillation was used to separate 2-methylpyridine and water azeotropic mixture. First,cyclohexane was chosen as the azeotropic entrainer. Second,Aspen Plus were used to simulate the continuous azotropic distillation process. The effects of entrainer flow rate and output quantity at the bottom and feed location on the product purity and heat duty were analyzed to get the optimal operation parameters. The result indicated that when the theoretical stage number was 21,the entrainer flow rate was 3600kg/h,the output quantity at the bottom was 888kg/h,and the feed location was 15, the purity of 2-methylpyridine and water can achieve as 99.54％ and 99.97％,respectively. Finally,in order to investigate the effectiveness of the solvent,the batch azeotropic distillation experiments were carried out. The results showed that the purity of 2-methylpyridine and water can achieve as 99.85％ and 99.96％,respectively,which revealed that cyclohexane was an ideal azeotropic agent and the azeotropic distillation was useful in the separation of 2-methylpyridine and water system.关键词
2-甲基吡啶/水/环己烷/共沸精馏/模拟Key words
2-methylpyridine/water/cyclohexane/azeotropic distillation/simulation分类
化学化工引用本文复制引用
杨颖,范开功,白鹏,郭翔海..共沸精馏分离2-甲基吡啶和水[J].化工进展,2017,36(9):3243-3249,7.基金项目
天津大学自主创新基金(2016XZC-0071)及天津市自然科学基金(16JCYBJC20300)项目. （2016XZC-0071）
