TY - JOUR
T1 - Biofuel production and kinetics analysis for microwave pyrolysis of Douglas fir sawdust pellet
AU - Ren, Shoujie
AU - Lei, Hanwu
AU - Wang, Lu
AU - Bu, Quan
AU - Chen, Shulin
AU - Wu, Joan
AU - Julson, James
AU - Ruan, Roger
N1 - Funding Information:
This work was supported in part by the Office of Research at Washington State University and Pacific Northwest National Laboratory .
PY - 2012/3
Y1 - 2012/3
N2 - Microwave pyrolysis of Douglas fir sawdust pellet was investigated to determine the effects of reaction temperature and time on the yields of bio-oil, syngas, and charcoal using a central composite design (CCD) and response surface analysis. The research results indicated that thermo-chemical conversion reactions can take place rapidly in large-sized biomass pellet by using microwave pyrolysis. The yields of bio-oil and syngas were increased with the reaction temperature and time. The highest yield of bio-oils was 57.8% (dry biomass basis) obtained at 471 °C and 15 min. GC/MS analysis indicated that the bio-oils were mainly composed of phenols, guaiacols, furans, ketones/aldehydes, and organic acids. The yield of specific chemicals such as furans and phenolic compounds were highly related to the reaction temperature. The syngas contained high value chemicals, such as carbon monoxide, methane, and short chain hydrocarbons. A third-order reaction mechanism fits well the microwave pyrolysis of Douglas fir pellet with activation energy of 33.5 kJ/mol and a frequency factor of 3.03 s-1.
AB - Microwave pyrolysis of Douglas fir sawdust pellet was investigated to determine the effects of reaction temperature and time on the yields of bio-oil, syngas, and charcoal using a central composite design (CCD) and response surface analysis. The research results indicated that thermo-chemical conversion reactions can take place rapidly in large-sized biomass pellet by using microwave pyrolysis. The yields of bio-oil and syngas were increased with the reaction temperature and time. The highest yield of bio-oils was 57.8% (dry biomass basis) obtained at 471 °C and 15 min. GC/MS analysis indicated that the bio-oils were mainly composed of phenols, guaiacols, furans, ketones/aldehydes, and organic acids. The yield of specific chemicals such as furans and phenolic compounds were highly related to the reaction temperature. The syngas contained high value chemicals, such as carbon monoxide, methane, and short chain hydrocarbons. A third-order reaction mechanism fits well the microwave pyrolysis of Douglas fir pellet with activation energy of 33.5 kJ/mol and a frequency factor of 3.03 s-1.
KW - Biofuels
KW - Douglas fir sawdust pellet
KW - Kinetics
KW - Microwave pyrolysis
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U2 - 10.1016/j.jaap.2011.12.004
DO - 10.1016/j.jaap.2011.12.004
M3 - Article
AN - SCOPUS:84858443551
SN - 0165-2370
VL - 94
SP - 163
EP - 169
JO - Journal of Analytical and Applied Pyrolysis
JF - Journal of Analytical and Applied Pyrolysis
ER -
