Conversion of woody oil into bio-oil in a downdraft reactor using a novel silicon carbide foam supported MCM41 composite catalyst

Zhenting Yu, Yunpu Wang, Lin Jiang, Leilei Dai, Yuhuan Liu, Roger Ruan, Pingwei Wen, Yunfeng Zhao, Dengle Duan, Rongge Zou, Qiuhao Wu, Yanzhi Li

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5 Scopus citations

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 languageEnglish (US)
Pages (from-to)19729-19739
Number of pages11
JournalRSC Advances
Volume9
Issue number34
DOIs
StatePublished - Jan 1 2019

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    Yu, Z., Wang, Y., Jiang, L., Dai, L., Liu, Y., Ruan, R., Wen, P., Zhao, Y., Duan, D., Zou, R., Wu, Q., & Li, Y. (2019). Conversion of woody oil into bio-oil in a downdraft reactor using a novel silicon carbide foam supported MCM41 composite catalyst. RSC Advances, 9(34), 19729-19739. https://doi.org/10.1039/c9ra02441g