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Microvawe pyrolysis of biomass: control of process parameters for high pyrolysis oil yields and enhanced oil quality

Robinson, John; Dodds, Chris; Stavrinides, Alexander; Kingman, Sam; Katrib, Juliano; Wu, Zhiheng; Medrano, Jose; Overend, Ralph

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Authors

John Robinson

CHRIS DODDS CHRIS.DODDS@NOTTINGHAM.AC.UK
Professor of Process Engineering

Alexander Stavrinides

SAM KINGMAN SAM.KINGMAN@NOTTINGHAM.AC.UK
Pro-Vice Chancellor Faculty of Engineering

Juliano Katrib

Zhiheng Wu

Jose Medrano

Ralph Overend



Abstract

The oil yield and quality of pyrolysis oil from microwave heating of biomass was established by studying the behaviour of Larch in microwave processing. This is the first study in biomass pyrolysis to use a microwave processing technique and methodology that is fundamentally scalable, from which the basis of design for a continuous processing system can be derived to maximise oil yield and quality. It is shown systematically that sample size is a vital parameter that has been overlooked by previous work in this field. When sample size is controlled the liquid product yield is comparable to conventional pyrolysis, and can be achieved at an energy input of around 600 kWh/t. The quality of the liquid product is significantly improved compared to conventional pyrolysis processes, which results from the very rapid heating and quenching that can be achieved with microwave processing. The yields of Levoglucosan and phenolic compounds were found to be an order of magnitude higher in microwave pyrolysis when compared with conventional fast pyrolysis. Geometry is a key consideration for the development of a process at scale, and the opportunities and challenges for scale-up are discussed within this paper.

Citation

Robinson, J., Dodds, C., Stavrinides, A., Kingman, S., Katrib, J., Wu, Z., …Overend, R. (2015). Microvawe pyrolysis of biomass: control of process parameters for high pyrolysis oil yields and enhanced oil quality. Energy and Fuels, 29(3), 1701-1709. https://doi.org/10.1021/ef502403x

Journal Article Type Article
Acceptance Date Jan 29, 2015
Online Publication Date Feb 23, 2015
Publication Date Mar 19, 2015
Deposit Date Mar 2, 2016
Publicly Available Date Mar 29, 2024
Journal Energy & Fuels
Print ISSN 0887-0624
Electronic ISSN 1520-5029
Publisher American Chemical Society
Peer Reviewed Peer Reviewed
Volume 29
Issue 3
Pages 1701-1709
DOI https://doi.org/10.1021/ef502403x
Public URL https://nottingham-repository.worktribe.com/output/742482
Publisher URL http://pubs.acs.org/doi/abs/10.1021/ef502403x
Additional Information This document is the Accepted Manuscript version of a Published Work that appeared in final form in Energy and Fuels, copyright © American Chemical Society
after peer review and technical editing by the publisher.
To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/ef502403x.

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