Enhancing biodiesel production using green glycerol-enriched calcium oxide catalyst

An optimization study

Journal article (2018)

Authors

Mangesh R. Avhad Norwegian University of Life Sciences (NMBU)
L.S. Gangurde Intensified Reaction and Separation Systems - Mechanical, Maritime and Materials Engineering
Marcos Sánchez Universidad Complutense de Madrid
Abderrahim Bouaid Universidad Complutense de Madrid
José Aracil Universidad Complutense de Madrid
Mercedes Martínez Universidad Complutense de Madrid
Jorge M. Marchetti Norwegian University of Life Sciences (NMBU)
Research Group
Intensified Reaction and Separation Systems (Mechanical, Maritime and Materials Engineering) (TU Delft)
Copyright: © 2018 Mangesh R. Avhad, L.S. Gangurde, Marcos Sánchez, Abderrahim Bouaid, José Aracil, Mercedes Martínez, Jorge M. Marchetti
DOI: https://doi.org/10.1007/s10562-018-2312-9
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Published Date

2018

Language

English

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Faculty

Mechanical, Maritime and Materials Engineering

Department

Process and Energy

Research Group

Intensified Reaction and Separation Systems

Abstract

The present article demonstrates a superior catalytic performance of glycerol-enriched calcium oxide for biodiesel production than other calcium-based counterparts. The proficiency of glycerol-enriched calcium oxide in catalyzing the methanolysis of crude Jatropha curcas oil containing high free fatty acids content was systematically researched by examining the effects of glycerol dose, temperature, time, methanol-to-oil molar ratio and calcium oxide (CaO) amount on the process. Acid value of oil was lowered by 49 times and the maximum oil conversion of 96.1% was reported after the methanolysis reaction that indicated the improved performance of calcium oxide, after its treatment with glycerol, in accelerating biodiesel production from crude oil with very high free fatty acids amount. An interaction between the reaction variables, their influence on the methanolysis and optimum conditions affecting the process were moreover determined by means of the regression analysis (response surface methodology). The statistical analysis suggested that both CaO amount and mole ratio of methanol-to-oil had a significant impact on the current biodiesel production process.

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