Microwave-assisted catalytic pyrolysis of Chinese tallow kernel oil for aromatic production in a downdraft reactor

Zhenting Yu, Yunpu Wang, Lin Jiang, Leilei Dai, Yuhuan Liu, Roger Ruan, Dengle Duan, Yue Zhou, Liangliang Fan, Yunfeng Zhao, Rongge Zou

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

Microwave-assisted pyrolysis of Chinese tallow kernel oil with silicon carbide (SiC)-foamed ceramic catalyst in a downdraft reactor was carried out in this study. In this paper, we studied the influence of catalytic temperature, catalyst-to-feed ratio, and feeding rate on product distribution and chemical components of bio-oil. The aromatic proportion reached a maximum value of 89.707 wt% when catalytic conditions were set as follows: 300 °C catalytic temperature, 1:2 catalyst/feedstock ratio, and 1 ml/min feed rate. Fourier-transform infrared spectra were consistent with the results obtained from gas chromatography–mass spectrometry. Their outstanding thermal stability allowed SiC-foamed ceramics to perform well in five cycles of repeated experiments under optimal conditions. These results indicate that the SiC-foamed ceramics are promising catalysts for aromatic production in microwave-assisted pyrolysis of Chinese tallow kernel oil in a downdraft reactor. This pathway can also improve the application prospects of microwave pyrolysis technology.

Original languageEnglish (US)
Pages (from-to)16-21
Number of pages6
JournalJournal of Analytical and Applied Pyrolysis
Volume133
DOIs
StatePublished - Aug 2018

Bibliographical note

Funding Information:
We gratefully acknowledge the financial support from the National Natural Science Foundation of China (No. 21766019 ), The Key Research and Development Program of Jiangxi Province ( 20171BBF60023 ), International Cooperation Project of MOST. P. R. China ( 2015DFA60170-4 ), 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 ).

Publisher Copyright:
© 2018 Elsevier B.V.

Keywords

  • Chinese tallow kernel oil
  • Downdraft reactor
  • Microwave-assisted pyrolysis
  • New type catalyst
  • SiC-foamed ceramics

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