Abstract
This study reports the synthesis of a SiC-MCM41 composite catalyst by a microwave-assisted hydrothermal process and the composite catalyst had the characteristics of MCM41 and SiC, and the surface of SiC grew evenly with a layer of MCM41 after characterization of the catalysts by various means (X-ray diffraction, Brunauer-Emmett-Teller, scanning electron microscopy). The catalyst was applied in the pyrolysis of waste oil to investigate how it influences the bio-oil component proportion compared with no catalyst, only SiC, only MCM41 catalysis and the catalytic effect was also investigated at different temperatures and different catalyst to feed ratios. In a downdraft system with a pyrolysis temperature of 550 °C, a catalyst to feed ratio of 1:2, and a catalytic temperature of 400 °C, 32.43% C5-C12 hydrocarbons and 41.10% mono-aromatics were obtained. The composite catalyst combined the catalytic effect of SiC and MCM41 because it increased the amount of C5-C12 hydrocarbons and decreased the amount of oxygen-containing compounds in bio-oil. After repeated uses, the composite catalyst still retained the catalytic properties.
Original language | English |
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Pages (from-to) | 19729-19739 |
Number of pages | 11 |
Journal | RSC Advances |
Volume | 9 |
Issue number | 34 |
DOIs | |
State | Published - 2019 |
Externally published | Yes |
Funding
We gratefully acknowledge the nancial support from the National Natural Science Foundation of China (No. 21766019), The Key Research and Development Program of Jiangxi Province (20171BBF60023), International Science & Technology Cooperation Program of China (2015DFA60170), Science and Technology Research Project of Jiangxi Province Education Department (No. GJJ150213), Innovation and Entrepreneurship Development Fund of “Thousand talents program” Talent (No. 1001-02102082), Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development (No. Y707sb1001).