Microwave-assisted catalytic fast co-pyrolysis (MACFP) of lignin and waste oil with SiC as microwave absorbent and hierarchical ZSM-5/MCM-41 as catalyst were implemented in a microwave-induced reactor. ZSM-5/MCM-41 is a kind of composite catalyst with MCM-41 as shell and ZSM as core. The effects of catalyst temperature, the ratio of feedstock-to-catalyst and the ratio of two reactants (lignin and waste oil) on product distribution and yield were studied. The study shows that catalytic co-pyrolysis is a complex reaction process, and many reaction conditions could affect the final reaction results. The optimum reaction conditions are as follows: catalytic temperature 400 °C, the feedstock-to-catalyst ratio of 10:1 and the ratio of lignin to waste oil of 2:1. Under this reaction condition, the conversion of feedstocks reached 76.00%, the proportion of aromatics was 50.31% and the selectivity of monocyclic aromatic hydrocarbons (MAHs) was 42.83%.
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 ), Natural Science Foundation of Jiangxi Province , China ( 20181 BAB206030 ), Research Project of State Key of Food Science and Technology , China ( SKLF-ZZB-201722 ), Science and Technology Research Project of Jiangxi Province Education Department , China (No. GJJ150213 ), Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development , China (No. Y707sb1001 ).
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- Waste oil