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

26 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
Pages (from-to)16-21
Number of pages6
JournalJournal of Analytical and Applied Pyrolysis
Volume133
DOIs
StatePublished - Aug 2018
Externally publishedYes

Funding

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 ).

Keywords

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

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