Table of Contents
ISRN Chemical Engineering
Volume 2013 (2013), Article ID 520293, 6 pages
http://dx.doi.org/10.1155/2013/520293
Research Article

Kinetic Study of Catalytic Esterification of Butyric Acid and Ethanol over Amberlyst 15

1Department of Chemical Engineering, RNCET, Panipat, Haryana 132103, India
2Department of Chemical Engineering, Bipin Tripathi Kumaon Institute of Technology, Dwarahat, Almora, Uttarakhand 263653, India
3Department of Biochemical Engineering, Bipin Tripathi Kumaon Institute of Technology, Dwarahat, Almora, Uttarakhand 263653, India

Received 29 June 2013; Accepted 5 August 2013

Academic Editors: G. Bayramoglu and R. Mariscal

Copyright © 2013 Nisha Singh et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The esterification reaction of butyric acid with ethanol has been studied in the presence of ion exchange resin (Amberlyst 15). Ethyl butyrate was obtained as the only product which is used in flavours and fragrances. Industrially speaking, it is also one of the cheapest chemicals, which only adds to its popularity. The influences of certain parameters such as temperature, catalyst loading, initial concentration of acid and alcohols, initial concentration of water, and molar ratio were studied. Conversions were found to increase with an increase in both molar ratio and temperature. The experiments were carried out in a batch reactor in the temperature range of 328.15–348.15 K. Variation of parameters on rate of reaction demonstrated that the reaction was intrinsically controlled. Experiment kinetic data were correlated by using pseudo-homogeneous model. The activation energy for the esterification of butyric acid with ethanol is found to be 30 k J/mol.