Enhanced microwave catalytic-esterification of industrial grade glycerol over Brønsted-based methane sulfonic acid in production of biolubricant

Kong, P.S. and Aroua, M.K. and Daud, W.M.A.W. and Cognet, P. and Pérès, Y. (2016) Enhanced microwave catalytic-esterification of industrial grade glycerol over Brønsted-based methane sulfonic acid in production of biolubricant. Process Safety and Environmental Protection, 104. pp. 323-333. ISSN 0957-5820

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Official URL: http://dx.doi.org/10.1016/j.psep.2016.09.014

Abstract

The industrial production of renewable lubricant glycerol trioleate was simulated using a microwave reactor through esterification of glycerol with oleic acid in the presence of methane sulfonic acid catalyst under solvent-free conditions. The interaction effects of operating temperature, catalyst concentration, and reaction time were investigated. A conversion of 90% was achieved in optimal conditions (191 °C, 0.3 wt% and 104 min reaction time) and reduced pressure environment. This result was impressive, compared to the conversion abounded with conventional reactor (39.5%). Furthermore, two different industrial grade crude glycerols were used as starting materials to evaluate the effect of impurities. The findings confirmed that the presence of impurities reduced both selectivity and total conversion significantly.

Item Type: Article
Uncontrolled Keywords: Esterification; Glycerol; Methane sulfonic acid; Microwave; Conventional; Impurities
Subjects: T Technology > TP Chemical technology
Divisions: Faculty of Engineering > School of Chemistry
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 27 Sep 2017 03:01
Last Modified: 27 Sep 2017 03:01
URI: http://eprints.um.edu.my/id/eprint/17818

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