General Information
    • ISSN: 2010-0221
    • Frequency: Bimonthly
    • DOI: 10.18178/IJCEA
    • Editor-in-Chief: Prof. Dr. Shen-Ming Chen
    • Executive Editor: Mr. Ron C. Wu
    • Abstracting/ Indexing: Chemical Abstracts Services (CAS), Ulrich's Periodicals Directory, CABI, Electronic Journals Library, Google Scholar, ProQuest, and Crossref
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Prof. Dr. Shen-Ming Chen
National Taipei University of Technology, Taiwan

IJCEA 2013 Vol.4(6): 388-392 ISSN: 2010-0221
DOI: 10.7763/IJCEA.2013.V4.331

Kinetics of Esterification of Palmitic acid with Ethanol- Optimization Using Statistical Design of Experiments

C. Beula and P. S. T. Sai
Abstract—The aim of this study was to apply statistical design of experiments for optimization of esterification reaction and to obtain the kinetics of the reaction. The present system of study was palmitic acid with ethanol using homogeneous catalyst sulphuric acid. The reactions were performed in a batch reactor and the progress of the reaction was monitored using Karl Fischer Titrator. To reduce the number of experiments and in order to achieve optimum conditions of the reaction, statistical design of experiments was carried out. Using Box- Behnken response surface analysis with three factors, three central points and one block, a table was designed with 15 experiments. The variable influencing the rate of reaction are temperature, mole ratio of reactants and catalyst concentration. The conversion is complete at a temperature of 73oC, initial molar ratio of reactants of 9.39 and at a catalyst concentration of 6.4 wt%. Integral method of analysis was used to analyze the batch reactor data and the order of the reaction was obtained. The reaction rate constants, frequency factor and activation energy of the reaction were determined.

Index Terms—Box-behnken design, esterification reactions, design of experiments, kinetics.

The authors are with the Department of Chemical Engineering, Indian Institute of Technology Madras, Chennai-600036, India (e-mail:,


Cite: C. Beula and P. S. T. Sai, "Kinetics of Esterification of Palmitic acid with Ethanol- Optimization Using Statistical Design of Experiments," International Journal of Chemical Engineering and Applications vol. 4, no. 6, pp. 388-392, 2013.

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