Vapor-permeation-aided esterification of isopropanol/propionic acid using NaA and PERVAP® 2201 membranes

被引：27

作者：

Ameri, Elham ^{[1
]}

Moheb, Ahmad ^{[1
]}

Roodpeyma, Shapoor ^{[1
]}

机构：

[1] Isfahan Univ Technol, Dept Chem Engn, Esfahan 8415683111, Iran

来源：

CHEMICAL ENGINEERING JOURNAL | 2010年 / 162卷 / 01期

关键词：

Esterification; Membrane reactor; Zeolite membrane; PERVAP (R) 2201; Isopropyl propionate; ZEOLITE MEMBRANES; BINARY-MIXTURE; LACTIC-ACID; ACETIC-ACID; PERVAPORATION; ETHANOL; KINETICS; PERFORMANCE; ALCOHOL; MODULE;

D O I：

10.1016/j.cej.2010.05.018

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Two different commercial (tubular NaA zeolite and flat polymeric (PERVAP (R) 2201)) membranes were used in a vapor permeation process to remove water from the reaction atmosphere during the synthesis of isopropyl propionate. The reaction was carried out in a batch reactor using 3 wt.% (relative to propionic acid) of para toluene sulfonic acid as the catalyst. Effects of membrane type and initial alcohol/acid molar ratio on the performance of the combined process were investigated. Experiments were carried out with three different levels of alcohol/acid molar ratio. It was found that the coupled process was generally capable of enhancing the conversion of reversible esterification reaction. However, complete acid conversion was achieved in a shorter period of time with zeolite membrane than with polymeric membrane. In addition, initial molar ratio of the reactants had a strong effect on both acid conversion and on water flux through the membranes. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：355 / 363

页数：9

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