Simulation for Transesterification of Methyl Acetate and n-Butanol in a Reactive and Extractive Distillation Column Using Ionic Liquids as Entrainer and Catalyst

A new reactive and extractive distillation process with ionic liquids as entrainer and catalyst （RED-IL）was proposed to produce methanol and n-butyl acetate by transesterification reaction of methyl acetate with n-butanol. The RED-IL process was simulated via a rigorous model, and high purity produc...

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Bibliographic Details
Published in:Chinese journal of chemical engineering 2011-10, Vol.19 (5), p.754-762
Main Author: 蔡贾林 崔现宝 杨志才
Format: Article
Language:English
Subjects:
Acetates
azeotropic mixture
Catalysts
Columns (process)
Entrainment
ionic liquid
Ionic liquids
Methyl alcohol
Optimization
reactive and extractive distillation
Transesterification
transesterification reaction
催化剂浓度
夹带剂
模拟
正丁醇
离子液体
萃取精馏
酯交换反应
醋酸甲酯
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Summary:A new reactive and extractive distillation process with ionic liquids as entrainer and catalyst （RED-IL）was proposed to produce methanol and n-butyl acetate by transesterification reaction of methyl acetate with n-butanol. The RED-IL process was simulated via a rigorous model, and high purity products of methanol and n-butyl acetate can be obtained in such a process. The effects of reflux ratio, feed mode, holdup, feed location, entrainer ratio and catalyst concentration on RED-IL process were investigated. The conversion of methyl acetate and purities of products increase with the holdup in column, entrainer ratio and catalyst content. An optimal reflux ratio exists in RED-IL process. Comparing to the mixed-feed mode, the segregated-feed mode is more effective, in which the optimal feed locations of reactants exist.
ISSN:1004-9541
2210-321X
DOI:10.1016/S1004-9541(11)60053-0