Effects of feedstock characteristics on microwave-assisted pyrolysis – A review

Yaning Zhang, Paul Chen, Shiyu Liu, Peng Peng, Min Min, Yanling Cheng, Erik Anderson, Nan Zhou, Liangliang Fan, Chenghui Liu, Guo Chen, Yuhuan Liu, Hanwu Lei, Bingxi Li, Roger Ruan

Research output: Contribution to journalReview articlepeer-review

145 Scopus citations


Microwave-assisted pyrolysis is an important approach to obtain bio-oil from biomass. Similar to conventional electrical heating pyrolysis, microwave-assisted pyrolysis is significantly affected by feedstock characteristics. However, microwave heating has its unique features which strongly depend on the physical and chemical properties of biomass feedstock. In this review, the relationships among heating, bio-oil yield, and feedstock particle size, moisture content, inorganics, and organics in microwave-assisted pyrolysis are discussed and compared with those in conventional electrical heating pyrolysis. The quantitative analysis of data reported in the literature showed a strong contrast between the conventional processes and microwave based processes. Microwave-assisted pyrolysis is a relatively new process with limited research compared with conventional electrical heating pyrolysis. The lack of understanding of some observed results warrant more and in-depth fundamental research.

Original languageEnglish (US)
Pages (from-to)143-151
Number of pages9
JournalBioresource Technology
StatePublished - 2017

Bibliographical note

Funding Information:
This study was supported in part by grants from China Scholarship Council (No. 201506125122), Minnesota's Environment and Natural Resources Trust Fund (ENRTF) through the processes of the Legislative-Citizen Commission on Minnesota Resources (LCCMR), and University of Minnesota Center for Biorefining.

Publisher Copyright:
© 2017 Elsevier Ltd


  • Bio-oil production
  • Feedstock characteristics
  • Microwave-assisted pyrolysis
  • Organic
  • Particle size


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