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Ex-situ catalytic upgrading of vapors from fast microwave-assisted co-pyrolysis of Chromolaena odorata and soybean soapstock

  • Yunpu Wang
  • , Qiuhao Wu
  • , Dengle Duan
  • , Roger Ruan
  • , Yuhuan Liu
  • , Leilei Dai
  • , Yue Zhou
  • , Yunfeng Zhao
  • , Shumei Zhang
  • , Zihong Zeng
  • , Lin Jiang
  • , Zhenting Yu

Research output: Contribution to journalArticlepeer-review

Abstract

Fast microwave-assisted catalytic co-pyrolysis of Chromolaena odorata (C. odorata) and soybean soapstock with HZSM-5 as an ex-situ catalyst was investigated. Effects of catalytic temperature, feedstock: catalyst ratio and C. odorata: soybean soapstock ratio on the yield and composition of the bio-oil were discussed. Results showed that catalytic temperature greatly influenced the bio-oil yield. Co-pyrolysis of C. odorata and soybean soapstock improved the bio-oil yield, and the maximum bio-oil yield of 55.14% was obtained at 250 °C. However, the addition of HZSM-5 decreased bio-oil yield but improved the quality of bio-oil. Moreover, the proportion of oxygen-containing compounds decreased dramatically with the addition of soybean soapstock. The C. odorata: soybean soapstock ratio of 1:2 and feedstock: catalyst ratio of 2:1 were the optimal condition to upgrade the bio-oil. In addition, the resulted biochar contained various essential elements and could be used as soil repair agent.

Original languageEnglish (US)
Pages (from-to)306-312
Number of pages7
JournalBioresource Technology
Volume261
DOIs
StatePublished - Aug 2018

Bibliographical note

Publisher Copyright:
© 2018 Elsevier Ltd

Keywords

  • Chromolaena odorata
  • Ex-situ catalytic co-pyrolysis
  • HZSM-5
  • Microwave
  • Soybean soapstock

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