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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,*
1
School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo 255049, China
2
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; https://doi.org/10.3390/en13112754
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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