Gardy, Jabbar, Nourafkan, Ehsan, Osatiashtiani, Amin, Lee, Adam F., Wilson, Karen, Hassanpour, Ali and Lai, Xiaojun (2019). A core-shell SO4/Mg-Al-Fe3O4 catalyst for biodiesel production. Applied Catalysis B: Environmental, 259 ,
Abstract
Catalytic transesterification of triglycerides and esterification of free fatty acids underpins sustainable biodiesel production, wherein efficient heterogeneous catalysts are sought to replace mineral acids. A robust, magnetic core-shell SO4/Mg-Al-Fe3O4 catalyst was synthesised by stepwise co-precipitation, encapsulation, and surface functionalisation. The resulting magnetically-separable catalyst has a surface area of 123 m2 g-1, uniform 6.5 nm mesopores, and a high total acid site loading of 2.35 mmol g-1. Optimum conditions for the (trans)esterification of waste cooking oil (WCO) over the sulfated solid acid catalyst were 95 °C, a methanol:WCO molar ratio of 9:1, and 300 min reaction to achieve 98.5 % FAME yield. Esterification of oleic acid to methyl oleate resulted in an 88 % yield after 150 min under the same reaction conditions. The magnetic solid acid catalyst exhibited good thermal and chemical stability and enabled facile catalyst separation post-reaction and the production of high quality biodiesel.
Publication DOI: | https://doi.org/10.1016/j.apcatb.2019.118093 |
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Divisions: | College of Engineering & Physical Sciences > Energy and Bioproducts Research Institute (EBRI) College of Engineering & Physical Sciences Aston University (General) |
Additional Information: | Crown Copyright © 2019 Published by Elsevier B.V. Funding: Ministry of Higher Education and Scientific Research of the Kurdistan Regional Government for funding this study under the Human Capacity Development Program (HCDP). |
Publication ISSN: | 1873-3883 |
Last Modified: | 07 Nov 2024 08:12 |
Date Deposited: | 20 Aug 2019 10:23 |
Full Text Link: | |
Related URLs: |
https://linking ... 926337319308409
(Publisher URL) |
PURE Output Type: | Article |
Published Date: | 2019-12-15 |
Published Online Date: | 2019-08-16 |
Accepted Date: | 2019-08-13 |
Authors: |
Gardy, Jabbar
Nourafkan, Ehsan Osatiashtiani, Amin ( 0000-0003-1334-127X) Lee, Adam F. Wilson, Karen Hassanpour, Ali Lai, Xiaojun |