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http://dx.doi.org/10.5658/WOOD.2011.39.1.86

Characterization of Pyrolytic Lignin in Biooil Produced with Yellow Poplar (Liriodendron tulipifera)  

Kim, Kwang-Ho (Dept. Forest Sciences, CALS, Seoul National University)
Moon, Sun-Joo (Dept. Forest Sciences, CALS, Seoul National University)
Kim, Tai-Seung (Dept. Forest Sciences, CALS, Seoul National University)
Lee, Soo-Min (Div. Forest Bioenergy, Dept. Forest Resources Utilization)
Yeo, Hwan-Myeong (Dept. Forest Sciences, CALS, Seoul National University)
Choi, In-Gyu (Dept. Forest Sciences, CALS, Seoul National University)
Choi, Joon-Weon (Dept. Forest Sciences, CALS, Seoul National University)
Publication Information
Journal of the Korean Wood Science and Technology / v.39, no.1, 2011 , pp. 86-94 More about this Journal
Abstract
Pyrolytic lignin was obtained from biooil produced with yellow poplar wood. Fast pyrolysis was performed under various temperature ranges and residence times using fluidized bed type reactor. Several analytical methods were adopted to characterize the structure of pyrolytic lignin as well as the effect of pyrolysis temperature and residence time on the modification of the lignin. The yield of pyrolytic lignin increased as increasing pyrolysis temperature and decreasing residence time of pyrolysis products. The molecular weight of pyrolytic lignin determined by gel permeation chromatography (GPC) was approximately 1,200 mol/g, which was approximately a tenth of milled wood lignin (MWL) purified from the same woody biomass. Based on analytical data, demethoxylation and side chain cleavage reaction were dominantly occurred during fast pyrolysis.
Keywords
fast pyrolysis; yellow poplar; biooil; pyrolytic lignin;
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