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Open AccessArticle

Development of Magnetic Multi-Shelled Hollow Catalyst for Biodiesel Production

by 1,2, 1,2, 1,2, 1,2 and 1,2,*
School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255049, China
Shandong Research Center of Engineering and Technology for Clean Energy, Zibo 255049, China
Author to whom correspondence should be addressed.
Energies 2020, 13(11), 2754;
Received: 21 April 2020 / Revised: 13 May 2020 / Accepted: 15 May 2020 / Published: 1 June 2020
(This article belongs to the Section Bio-Energy)
The magnetic CaO-based catalyst has endorsed great enhancements in biodiesel synthesis. In the present work, novel multi-shelled hollow γ-Fe2O3 stabilized CaO microspheres were synthesized using a facile one-step hydrothermal method. The strategy revealed that the well-defined multi-shelled hollow structures were formed with magnetism; the presence of γ-Fe2O3 was the key for the effective structural stabilization, and the multi-shelled hollow structures provided the sites for the active material. The synthesized catalyst was employed for the preparation of biodiesel by transesterification of palm oil and methanol. A four factors response surface methodology was adopted for optimizing the reaction conditions. Ca80Fe20 with a yield of 96.12% performed the highest catalytic activity under reaction conditions of 2 h, a methanol to oil ratio of 12:1, 65 °C and 11 wt. % of catalyst dosage. The catalyst under the optimum transesterification conditions also performed a better recyclability (>85%). In addition, the response surface methodology (RSM) based on the Box–Behnken design was used to optimize the four reaction parameters. View Full-Text
Keywords: biodiesel; transesterification; multi-shelled hollow; CaO; γ-Fe2O3; RSM biodiesel; transesterification; multi-shelled hollow; CaO; γ-Fe2O3; RSM
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MDPI and ACS Style

Zhou, L.; Yao, J.; Ren, Z.; Yu, Z.; Cai, H. Development of Magnetic Multi-Shelled Hollow Catalyst for Biodiesel Production. Energies 2020, 13, 2754.

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