LAPSE:2019.0119
Published Article
LAPSE:2019.0119
Environment-Friendly Heterogeneous Alkaline-Based Mixed Metal Oxide Catalysts for Biodiesel Production
Hwei Voon Lee, Joon Ching Juan, Taufiq-Yap Yun Hin, Hwai Chyuan Ong
January 7, 2019
The critical problem arising from the depletion of fossil fuels has stimulated recent interests in alternative sources for petroleum-based fuel. An alternative fuel should be technically feasible, readily available, sustainable, and techno-economically competitive. Biodiesel is considered as a potential replacement of conventional diesel fuel, which is prepared from non-edible and high-acid feedstock via transesterification technology. The focus of this study is to investigate the catalytic activity of mixed metal oxides (MMOs) as catalysts for biodiesel production by using non-edible jatropha oil as feedstock. Various types of MMOs (CaO-MgO, CaO-ZnO, CaO-La₂O₃, and MgO-ZnO) were synthesized via a co-precipitation method. In this study, transesterification activities are closely related to the physicochemical properties of catalysts. The presence of different active metals in the binary system greatly influenced the surface area, basicity, and the stability of catalysts. The catalytic activity of MMO catalysts was increased in the order of CaO-ZnO (94% ± 1%) > CaO ~ CaO-MgO ~ CaO-La₂O₃ (~90% ± 2%) > MgO-ZnO (83% ± 2%) > MgO (64% ± 1%) > ZnO (41% ± 2%) > La₂O₃ (23% ± 1%). In addition, the MMO catalysts, especially CaO-ZnO, demonstrated high reusability and catalyst stability for four cycles of transesterification reaction of jatropha oil.
Keywords
biodiesel, mixed metal oxides, non-edible oil, solid catalyst, transesterification
Subject
Suggested Citation
Lee HV, Juan JC, Yun Hin TY, Ong HC. Environment-Friendly Heterogeneous Alkaline-Based Mixed Metal Oxide Catalysts for Biodiesel Production. (2019). LAPSE:2019.0119
Author Affiliations
Lee HV: Nanotechnology & Catalysis Research Centre (NanoCat), Institute of Postgraduate Studies, University Malaya, 50603 Kuala Lumpur, Malaysia
Juan JC: Nanotechnology & Catalysis Research Centre (NanoCat), Institute of Postgraduate Studies, University Malaya, 50603 Kuala Lumpur, Malaysia; Monash University, Sunway Campus, Jalan Lagoon Selatan, 46150 Sunway Selangor, Malaysia
Yun Hin TY: Catalysis Science and Technology Research Centre (PutraCat), Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
Ong HC: Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
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Journal Name
Energies
Volume
9
Issue
8
Article Number
E611
Year
2016
Publication Date
2016-08-03
Published Version
ISSN
1996-1073
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PII: en9080611, Publication Type: Journal Article
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LAPSE:2019.0119
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doi:10.3390/en9080611
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Jan 7, 2019
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CC BY 4.0
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Jan 7, 2019
 
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Calvin Tsay
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