Development of a Novel Hydrophobic ZrO2–SiO2 Based Acid Catalyst for Catalytic Esterification of Glycerol with Oleic Acid

Kong, Pei San and Cognet, Patrick and Peres, Yolande and Esvan, Jerome and Daud, Wan Mohd Ashri Wan and Aroua, Mohamed Kheireddine (2018) Development of a Novel Hydrophobic ZrO2–SiO2 Based Acid Catalyst for Catalytic Esterification of Glycerol with Oleic Acid. Industrial & Engineering Chemistry Research, 57 (29). pp. 9386-9399. ISSN 0888-5885

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Official URL: https://doi.org/10.1021/acs.iecr.8b01609

Abstract

The inevitably low value of glycerol has led to extensive investigations on glycerol conversion to value-added derivatives. The esterification of glycerol with oleic acid is currently a very important industrial process. In this work, a novel heterogeneous acid catalyst featuring hydrophobic surface is developed on modified ZrO2-SiO2 support as water-tolerant solid acid catalyst is vital for biphasic esterification reactions that produce water. The novel ZrO2-SiO2-Me&Et-PhSO3H catalyst was prepared through silication and surface modification with trimethoxymethylsilane and 2-(4-chlorosulfonylphenyl)ethyltrimethoxysilane. This work showed that it is possible to control the acidity and hydrophobicity of the catalyst by tailoring the amount of surface modification agents. It was found that the hydrophobicity of the catalyst decreased as its acidity increased. Furthermore, at constant catalyst acidity, the more hydrophobic catalyst showed a better yield.

Item Type: Article
Uncontrolled Keywords: Catalytic esterification; Esterification reactions; Glycerol conversions; Heterogeneous acid catalysts; Hydrophobic catalysts; Solid acid catalysts; Surface modification agents; Trimethoxymethylsilane
Subjects: T Technology > TP Chemical technology
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 09 Jul 2019 07:37
Last Modified: 09 Jul 2019 07:37
URI: http://eprints.um.edu.my/id/eprint/21589

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