Design of Heterogeneous Batch Reactive Distillation for Acetic Acid Esterification
Date Issued
2010
Date
2010
Author(s)
Kuo, Chia-Hung
Abstract
Batch distillation process has been widely used for small scale productions in pharmaceuticals, fine chemicals, and specialty chemicals. The latest batch reactive distillation (abbreviated as BReaD) combines the flexibility of batch distillation and the advantages of reactive distillation. This research studies policies for operating a heterogeneous BReaD process which has a lightest azeotrope in a two phase region. The policies include total organic reflux and zero aqueous discharge in the productions of butyl, isopropyl and ethyl acetates. From the proposed BReaD, the objective is aimed to obtain the esters from the bottom and high purity water from the top decanter. This study also discusses the effects of partial aqueous reflux and decanter charging strategies on the product compositions；This latter study is motivated by a small two-phase region in the ethyl acetate that does not include the azetrope. The decanter charging strategy has an opportunity to push the top vapor composition into the two phase region, which will then enhance the production of qualified product from a heterogeneous BReaD.
Subjects
Batch reactive distillation
Heterogeneous
Acetic acid
Type
thesis
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