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ABSTRACT
In this study, a hybrid bioethanol production and purification system was designed and operated at different operation conditions. In the first stage, dilute ethanol (3 wt%) was produced by fermentation and concentrated to 80 wt% ethanol–water mixture by means of poly(dimethylsiloxane) membrane. In the second stage, residual water was purified to approximately 99% water content by using carboxymethyl cellulose membrane. The first stage is a fermentor, so the temperature was kept stable at 25°C. Effects of the operation variables such as temperature and concentration of the mixture on membrane separation performance were evaluated.
Funding
This study was financially supported by Scientific Research Projects Unit (Grant Number: 2013/075) of Kocaeli University.