期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 47, 期 82, 页码 34866-34874出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2022.08.055
关键词
Second-generation biodiesel; Catalyst carrier; Co-MOF; Vegetable oil
资金
- Natural Science Foundation of Jiangsu Province of China
- General Project of the Education Department of Jiangsu Prov- ince
- [BK20210566]
- [21KJB480003]
The study investigates the catalytic performance of three different Co catalysts for lipid hydrotreatment and finds that the Co/NC catalyst shows excellent performance with high conversion and yield compared to the other two catalysts.
The Co catalysts for lipid hydrotreatment into green diesel commonly has a poor disper-sion of Co and big Co particle size due to metal agglomeration, limiting its catalytic per-formance. To solve this problem, three Co catalysts on activated carbon (AC), Al2O3, and nitrogen-doped carbon (NC) are prepared, among which the Co/NC is synthesized by using the Co metal-organic framework (MOF) as the precursor. In the hydrotreatment of oleic acid, the Co/NC catalyst attained 99.6% conversion and 99.6% alkane yield, much higher than Co/AC (76.8% and 14.9%) and Co/Al2O3 (96.3% and 18.7%). From the characterizations of the catalyst, the excellent performance is ascribed to its lamellar structure, large specific surface area, and high dispersion of Co sites, providing massive Co-active sites for hydrotreatment reaction. Moreover, the catalytic performance of Co/NC under various hydrotreatment temperatures with different feedstocks is investigated.(c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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