Coupled Reaction/Distillation Process for Hydrolysis of Methyl Acetate

赵素英; 黄镜钊; 王良恩; 黄国强

doi:10.1016/S1004-9541(09)60125-7

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Coupled Reaction/Distillation Process for Hydrolysis of Methyl Acetate

Updated：2026-01-06

- Coupled Reaction/Distillation Process for Hydrolysis of Methyl Acetate
- Chinese Journal of Chemical Engineering Vol. 18, Issue 5, Pages: 755-760(2010)
- Affiliations：
  
  1. College of Chemistry and Chemical Engineering, Fuzhou University,Fuzhou,China,350002
  2. National Engineering Research Center for Distillation Technology (NERCDT),Tianjin,China,300072
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(09)60125-7
  CLC：
- Published：2010
- Accepted：
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ZHAO Suying, HUANG Jingzhao, WANG Liang'en, HUANG Guoqiang. Coupled Reaction/Distillation Process for Hydrolysis of Methyl Acetate[J]. , 2010, 18(5): 755-760.
DOI：

ZHAO Suying, HUANG Jingzhao, WANG Liang'en, HUANG Guoqiang. Coupled Reaction/Distillation Process for Hydrolysis of Methyl Acetate[J]. , 2010, 18(5): 755-760. DOI： 10.1016/S1004-9541(09)60125-7.

摘要

Abstract

A process composed of a fixed-bed and a distillation column with a side withdraw

mainly methanol

is developed to hydrolyze methyl acetate (MA) as a typical byproduct in polyvinyl alcohol (PVA) and pure terephthalic acid (PTA) factory. The process is simulated by employing the equilibrium stage model RadFrac and plug flow model Rplug in Aspen Plus. Experiments are also carried out in a lab-scale to evaluate the process. The results show that at the molar ratio of water to methyl acetate about 4.0-5.0 in the feed stream and the volume ratio of distillate to feed MA above a critical value

the side product contains more than 80% (by mass) (MeOH) and less than 2% (by mass) MA

while the bottom contains more than 46% (by mass) acetic acid (HAc) and less than 0.5% (by mass) methanol with almost complete conversion of MA. Compared with the old catalytic distillation process we proposed before

this process can cut down 47.6% energy consumption and a distillation column.

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