Journal
BIOMASS & BIOENERGY
Volume 35, Issue 4, Pages 1607-1611Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.biombioe.2010.12.040
Keywords
Lignophenol; Phase separation system; Lignin; Softwood; Hydrothermal decomposition; Monophenol
Funding
- Japan Science and Technology Corporation (JST)
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Lignophenol is a novel lignin-based functional polymer. Hydrothermal decomposition of ligno-p-cresol derived from softwood (Douglas fir) was studied from 300 to 400 degrees C as a candidate technology for modification of the molecular structure and the recovery of monophenols. Ligno-p-cresol was promptly depolymerized probably by hydrolysis of aryl ether linkages and the half was converted to ether-soluble compounds at 300 degrees C for 10 min. With increasing temperature and reaction time, the yields of char and gas were increased, indicating the acceleration of carbonization and decomposition of monophenols. The monophenols obtained were mainly p-cresol and guaiacol. Their yields only exceed 10% at 365 degrees C and 60 min probably due to the inefficient pyrolysis of 1,1-bis aryl structures. (C) 2010 Elsevier Ltd. All rights reserved.
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