The composite catalysts were synthesized with SiC powder and ZSM-5 and were characterized by Brunauer-Emmett-Teller, X-ray diffraction, thermogravimetric analysis, pyridine-infrared spectroscopy, and scanning electron microscopy. The catalysts showed a high heating rate and excellent catalytic performance for pyrolysis vapors, and the product fractional distribution and chemical compositions of bio-oil in a tandem system (microwave pyrolysis and microwave ex-situ catalytic reforming) was examined. Experimental results confirmed the quality of bio-oil produced by the microwave-induced catalytic reforming was better than that product through electric heating. Additionally, 36.94 wt% of bio-oil was obtained using the catalyst with 20%ZSM-5/SiC under the following conditions: feed-to-catalyst ratio, 2:1; pyrolysis temperature, 550 °C; and catalytic temperature, 350 °C. The selectivities of hydrocarbons reached up to 75.88%. After five cycles, the activity of the regenerated composite catalyst was retained at 95% of the original catalyst.
Bibliographical noteFunding Information:
This project is financially supported by the National Natural Science Foundation of China , China (No. 21766019 ); (No. 21878137 ), Key Research and Development Program of Jiangxi Province, China ( 20171BBF60023 ), Research Project of State Key of Food Science and Technology, China ( SKLF-ZZB-201722 ), Natural Science Foundation of Jiangxi Province, China ( 20181BAB206030 ).
- Catalytic pyrolysis
- Composite catalyst
- Soybean soapstock
PubMed: MeSH publication types
- Journal Article