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Title: Dielectric barrier discharge plasma microbubble reactor for pretreatment of lignocellulosic biomass
Authors: Wright, Alexander R.P.
Bandulasena, Hemaka C.H.
Ibenegbu, Christopher
Leak, D.
Holmes, Thomas
Zimmerman, William B.
Shaw, Alexander H.
Iza, Felipe
Keywords: Microbubbles
DBD plasma
Ozone
OH radicals
Miscanthus
Biomass
Issue Date: 2018
Publisher: Wiley Periodicals, Inc. on behalf of American Institute of Chemical Engineers (© The Authors)
Citation: WRIGHT, A. ...et al., 2018. Dielectric barrier discharge plasma microbubble reactor for pretreatment of lignocellulosic biomass, 64(11),pp. 3803-3816.
Abstract: A novel lignocellulosic biomass pretreatment reactor has been designed and tested to investigate pretreatment efficacy of miscanthus grass. The reactor was designed to optimise the transfer of highly oxidative species produced by dielectric barrier discharge plasma to the liquid phase immediately after generation, by arranging close proximity of the plasma to the gas-liquid interface of microbubbles. The reactor produced a range of reactive oxygen species and reactive nitrogen species, and the rate of production depended on the power source duty cycle and the temperature of the plasma. Ozone and other oxidative species were dispersed efficiently using energy efficient microbubbles produced by fluidic oscillations. A 5% (w/w) miscanthus suspension pretreated for 3 hr at 10% duty cycle yielded 0.5% acid soluble lignin release and 26% sugar release post hydrolysis with accelerated pretreatment towards the latter stages of the treatment demonstrating the potential of this approach as an alternative pretreatment method.
Description: This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
Sponsor: This work was supported by Plants to Products BBSRC NIBB for funding this project (POC-HD_RD0300 C and BB/L013819/1). AW would like to acknowledge school of AACME, Loughborough University and EPSRC (EP/M507908/1) for PhD studentship.
Version: Published
DOI: 10.1002/aic.16212
URI: https://dspace.lboro.ac.uk/2134/33354
Publisher Link: https://doi.org/10.1002/aic.16212
ISSN: 0001-1541
Appears in Collections:Published Articles (Mechanical, Electrical and Manufacturing Engineering)
Published Articles (Chemical Engineering)

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