Derya Unlu, Aynur Hacıoglu, Nilufer Hilmioglu
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Pervaporation membrane reactor which is  a combination of reaction and separation units in one device is  membrane aided processes. Reaction equilibrium is shifted towards the products side due to the selective removal of the one of the products by the membrane, thus conversion is increased in the thermodynamic and kinetic limited reactions.  In this study, polymeric blend membranes were prepared. Aluminum potassium sulfate dodecahydrate was used as catalyst. Chitosan and poly(vinylpyrrolidone) polymers were utilized for blend polymer solution. Reaction of ethanol and acetic acid was chosen as  a model reaction. Effect of the temperature, amount of catalyst and initial molar ratio of reactants on the conversion of levulinic acid, pervaporation flux and selectivity were investigated and interpreted.

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Parulekar SJ. Analysis of pervaporation-aided esterification of organic acids, Industrial & Engineering Chemistry Research. 2007 October; 46(25):8490-8504.

Sanz MT, Gmehling J. Esterification of acetic acid with isopropanol coupled with pervaporation Part I: Kinetics and pervaporation studies. Chemical Engineering Journal. 2006 October; 123(1-2):1–8.

Wasewar K, Patidar S, Agarwal VK. Esterification of lactic acid with ethanol in a pervaporation reactor: modeling and performance study, Desalination. 2009 July; 243(1-3):305–313.

Xia S, Dong X, Zhu Y, Wei W, Xiangli F, Jin W. Dehydration of ethyl acetate–water mixtures using PVA/ceramic composite pervaporation membrane. Separation and Purification Technology. 2011 February; 77(1):53–59.

Liu QL, Chen HF. Modeling of esterification of acetic acid with n-butanol in the presence of Zr(SO4)2.4H2O coupled pervaporation. Journal of Membrane Science. 2002 February; 196(2):171-178.

Delgado P, Sanz MT, Beltrán S, Núñez LA. Ethyl lactate production via esterification of lactic acid with ethanol combined with pervaporation. Chemical Engineering Journal. 2010 December; 165(2):693–700.

Acartürk F., Reaksiyon Kinetiği ve Stabilite,

Veerapur SK, Gudasi KB, Sairam M, Shenoy RV, Netaji M, Raju KVSN, Sreedhar B, Aminabhavi TM. Novel sodium alginate composite membranes prepared by incorporating cobalt (III) complex particles used in pervaporation separation of water–acetic acid mixtures at different temperatures. Journal of Materials Science. 2007 June; 42(12):4406–4417.

Unlu D, Hacıoglu A, Hilmioglu N. Preparation And Application Of AlK(SO4)2.12H2O Loaded Chitosan/ Polyvinylpyrrolidone Catalytic Membrane. Bursa, Turkey: NCC6-The 6th Catalysis Conference; 2016. p.146.

J. Turk. Chem. Soc., Sect. B: Chem. Eng.