Abstract
A novel lignocellulosic biomass pretreatment reactor has been designed and tested to investigate pretreatment efficacy of miscanthus grass. The reactor was designed to optimize 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 h at 10% duty cycle yielded 0.5% acid soluble lignin release and 26% sugar release post hydrolysis with accelerated pretreatment toward the latter stages of the treatment demonstrating the potential of this approach as an alternative pretreatment method.
| Original language | English |
|---|---|
| Pages (from-to) | 3803-3816 |
| Number of pages | 14 |
| Journal | AIChE Journal |
| Volume | 64 |
| Issue number | 11 |
| Early online date | 7 Sep 2018 |
| DOIs | |
| Publication status | E-pub ahead of print - 7 Sep 2018 |
Keywords
- biomass
- DBD plasma
- microbubbles
- miscanthus
- OH radicals
- ozone
ASJC Scopus subject areas
- Biotechnology
- Environmental Engineering
- Chemical Engineering(all)
Cite this
Dielectric barrier discharge plasma microbubble reactor for pretreatment of lignocellulosic biomass. / Wright, Alexander; Bandulasena, Hemaka; Ibenegbu, Christopher; Leak, David; Holmes, Thomas; Zimmerman, William; Shaw, Alex; Iza, Felipe.
In: AIChE Journal, Vol. 64, No. 11, 07.09.2018, p. 3803-3816.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Dielectric barrier discharge plasma microbubble reactor for pretreatment of lignocellulosic biomass
AU - Wright, Alexander
AU - Bandulasena, Hemaka
AU - Ibenegbu, Christopher
AU - Leak, David
AU - Holmes, Thomas
AU - Zimmerman, William
AU - Shaw, Alex
AU - Iza, Felipe
PY - 2018/9/7
Y1 - 2018/9/7
N2 - A novel lignocellulosic biomass pretreatment reactor has been designed and tested to investigate pretreatment efficacy of miscanthus grass. The reactor was designed to optimize 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 h at 10% duty cycle yielded 0.5% acid soluble lignin release and 26% sugar release post hydrolysis with accelerated pretreatment toward the latter stages of the treatment demonstrating the potential of this approach as an alternative pretreatment method.
AB - A novel lignocellulosic biomass pretreatment reactor has been designed and tested to investigate pretreatment efficacy of miscanthus grass. The reactor was designed to optimize 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 h at 10% duty cycle yielded 0.5% acid soluble lignin release and 26% sugar release post hydrolysis with accelerated pretreatment toward the latter stages of the treatment demonstrating the potential of this approach as an alternative pretreatment method.
KW - biomass
KW - DBD plasma
KW - microbubbles
KW - miscanthus
KW - OH radicals
KW - ozone
UR - http://www.scopus.com/inward/record.url?scp=85052094253&partnerID=8YFLogxK
U2 - 10.1002/aic.16212
DO - 10.1002/aic.16212
M3 - Article
VL - 64
SP - 3803
EP - 3816
JO - AIChE Journal
JF - AIChE Journal
SN - 0001-1541
IS - 11
ER -