Two-step fast microwave-assisted pyrolysis of biomass for bio-oil production using microwave absorbent and HZSM-5 catalyst

Bo Zhang, Zhaoping Zhong, Qinglong Xie, Shiyu Liu, Roger Ruan

Research output: Contribution to journalArticlepeer-review

68 Scopus citations

Abstract

A novel technology of two-step fast microwave-assisted pyrolysis (fMAP) of corn stover for bio-oil production was investigated in the presence of microwave absorbent (SiC) and HZSM-5 catalyst. Effects of fMAP temperature and catalyst-to-biomass ratio on bio-oil yield and chemical components were examined. The results showed that this technology, employing microwave, microwave absorbent and HZSM-5 catalyst, was effective and promising for biomass fast pyrolysis. The fMAP temperature of 500°C was considered the optimum condition for maximum yield and best quality of bio-oil. Besides, the bio-oil yield decreased linearly and the chemical components in bio-oil were improved sequentially with the increase of catalyst-to-biomass ratio from 1:100 to 1:20. The elemental compositions of bio-char were also determined. Additionally, compared to one-step fMAP process, two-step fMAP could promote the bio-oil quality with a smaller catalyst-to-biomass ratio.

Original languageEnglish (US)
Pages (from-to)240-247
Number of pages8
JournalJournal of Environmental Sciences (China)
Volume45
DOIs
StatePublished - Oct 10 2015

Bibliographical note

Publisher Copyright:
© 2016

Keywords

  • Catalytic upgrading
  • HZSM-5 zeolite catalyst
  • Microwave
  • Pyrolysis
  • Two-step

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