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Application of Factorial Design of Experiments for the Continuous Hydrogenation of Enriched Castor Oil Methyl Esters

1Centre for Lipid Research, Indian Institute of Chemical Technology, Hyderabad – 500007, India

2Chemical Engineering Division, Indian Institute of Chemical Technology, Hyderabad – 500007, India

Received: 2 Sep 2013; Revised: 4 Oct 2013; Accepted: 5 Oct 2013; Available online: 7 Dec 2013; Published: 30 Dec 2013.
Editor(s): Istadi Istadi
Open Access Copyright (c) 2013 by Authors, Published by BCREC Group
Creative Commons License This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
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Abstract
Castor oil methyl esters contains nearly 90% ricinoleic acid (12-hydroxy-cis-9-octadecenoic acid). Hydrogen-ated castor oil methyl esters finds several applications in coating, lubricants formulations and pharmaceu-tical areas. The present study reports a fast, simple, efficient and continuous hydrogenation of enriched castor oil methyl ester (ECME) using 10% Pd/C catalyst at different pressures and temperatures. The range of process conditions for this study varied from 30-60 °C, 5-15 bar with constant flow rate of 15 ml/min. The products were analyzed for fatty acid composition and iodine value (IV). The optimized pa-rameters were found to be a temperature of 30 °C, pressure 5 bar, and flow rate of 15 ml/min where maxi-mum hydrogenation of 98.47 % was obtained and the product showed an iodine value of 3.19. © 2013 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0)
Keywords: Enriched castor oil methyl ester; Hydrogenated castor oil methyl ester; Continuous hydrogenation; 12-hydroxy stearic acid; Design of experiments
Funding: National Agricultural Innovation Project of India

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