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Received December 13, 2016
Accepted March 22, 2017
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
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Esterification of acrylic acid with ethanol using pervaporation membrane reactor
Department of Chemical Engineering, National Institute of Technology Raipur (CG), India
dr.amitkeshav@gmail.com
Korean Journal of Chemical Engineering, June 2017, 34(6), 1661-1668(8), 10.1007/s11814-017-0088-z
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Abstract
Esterification of acrylic acid with ethanol was carried out using an in-situ reactor with an integrated pervaporation assembly (IPAE) made of polyvinyl alcohol (PVA) membrane and was compared with a non-integrated (NIE) system. Effect of reaction temperature (Tr), catalyst loading (Cc), molar ratios of reactants (MR) and ratio of effective membrane area to unit volume of reaction mixture (S/Vo) on kinetics of esterification reaction were studied. Conversions achieved in IPAE were found to be distinctly higher than the NIE. The highest conversion of acrylic acid was obtained as 83.3% at Tr=60 °C, MR=3 : 1, Cc=2% and S/Vo=14.1m-1. Equilibrium conversion of acrylic acid in NIE was obtained as 55.1% at 60 °C, 1 : 1 in 7 h, while using IPAE conversion enhances to 67.6%. Esterification of acrylic acid and ethanol with presently studied operating parameters provides a new approach to existing literature reported esterification-pervaporation system.
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