Conversion of woody oil into bio-oil in a downdraft reactor using a novel silicon carbide foam supported MCM41 composite catalyst. Issue 34 (25th June 2019)

• Record Type: Journal Article
• Authors: Yu, Zhenting; Wang, Yunpu; Jiang, Lin; Dai, Leilei; Liu, Yuhuan; Ruan, Roger; Wen, Pingwei; Zhao, Yunfeng; Duan, Dengle; Zou, Rongge; Wu, Qiuhao; Li, Yanzhi
• Is Part Of: RSC advances. Volume 9:Issue 34(2019)
• Page Start: 19729
• Page End: 19739
• Publication Date: 2019-06-25
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c9ra02441g
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Main flow chart of the pyrolysis process using SiC-MCM41 catalyst. 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.