Waste-free process for continuous flow enzymatic esterification using a double pervaporation system

被引:28
作者
Gubicza, Laszlo [1 ]
Belafi-Bako, Katalin [1 ]
Feher, Erika [1 ]
Frater, Tamas [1 ]
机构
[1] Univ Pannonia, Res Inst Chem & Proc Engn, H-8200 Veszprem, Hungary
关键词
D O I
10.1039/b810009h
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The enzyme catalytic esterification reaction of acetic acid and ethanol in [bmim]PF(6) ionic liquid was studied to manufacture natural ethyl acetate by a continuous waste-free process. The optimal parameters of the reaction were determined in batch experiments, and then a continuous set-up was constructed. Ethyl acetate and water formed in the bioreactor were removed by a double pervaporation system using hydrophobic and hydrophilic membranes, respectively. Acetic acid and ethanol were added as they were consumed, thus steady state concentrations in the reactor were maintained and continuous operation for 72 hours long was ensured without any activity loss of the enzyme.
引用
收藏
页码:1284 / 1287
页数:4
相关论文
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