Bacterial Cellulose-Alginate Membrane for Dehydration of Biodiesel-Methanol Mixtures

  • Theerawat Suratago Chulalongkorn University
  • Panu Panitchakarn Chulalongkorn University
  • Pattanan Kerdlarpphon Chulalongkorn University
  • Napat Rungpeerapong Chulalongkorn University
  • Vorakan Burapatana PTT Research and Technology Institute
  • Muenduen Phisalaphong Chulalongkorn University

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Abstract

Pervaporation, a membrane-based technique, is taken into consideration in order to separate water from biodiesel-methanol mixtures. Several operational conditions in biodiesel production could cause water contamination into the reaction mixture, which can affect biodiesel production and quality. In this study, bacterial cellulose-alginate (BCA) nanocomposite film was applied as a selective membrane in order to separate water from biodiesel-methanol mixtures using pervaporation. For effective operation, factors that affected the performance in the pervaporation, such as concentration of water in the biodiesel-methanol mixtures and temperature of the process were investigated. It was demonstrated that, the BCA membrane has good potential for removing water from the biodiesel-methanol mixtures. Under a permeate pressure of 10 mmHg and 30°C, the BCA membrane could separate water from the mixture containing methyl ester (C10:0): methanol: water at a weight ratio of 42.3:52.7:5 with a total permeate flux of 148 g/(m2h) and a water selectivity of 332. The permeate was contained 94.5% w/w water and methyl ester was completely rejected by the BCA membrane. The increase of water concentration in biodiesel-methanol mixtures and the temperature rise resulted in an increase in the permeate flux but lowered the selectivity.

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Author Biographies
Theerawat Suratago

Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand

Panu Panitchakarn

Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand

Pattanan Kerdlarpphon

Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand

Napat Rungpeerapong

Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand

Vorakan Burapatana

PTT Research and Technology Institute, Phahonyothin Road KM 78, Wang Noi, Phra Nakhon Si Ayutthaya 13170, Thailand

Muenduen Phisalaphong

Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand

Published
Vol 20 No 5, Nov 25, 2016
How to Cite
T. Suratago, P. Panitchakarn, P. Kerdlarpphon, N. Rungpeerapong, V. Burapatana, and M. Phisalaphong, “Bacterial Cellulose-Alginate Membrane for Dehydration of Biodiesel-Methanol Mixtures”, Eng. J., vol. 20, no. 5, pp. 145-153, Nov. 2016.

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