文献类型：期刊文献

中文题名：Wood liquefaction with phenol by microwave heating and FTIR evaluation

英文题名：Wood liquefaction with phenol by microwave heating and FTIR evaluation

作者：Gaiyun Li[1] Chungyun Hse[2] Tefu Qin[1]

第一作者：李改云

机构：[1]Research Institute of Wood Industry,Chinese Academy of Forestry;[2]Southern Research Station,USDA Forest Service

年份：2015

卷号：26

期号：4

起止页码：1043-1048

中文期刊名：林业研究：英文版

收录：CSTPCD;;Scopus;CSCD:【CSCD2015_2016】；

基金：financially supported by the ‘‘948Project’’ of State Forestry Administration(2012-4-28)

语种：英文

中文关键词：傅里叶变换红外光谱;木材液化;微波加热;油浴加热;半纤维素;COM组件;酸催化剂;反应时间

外文关键词：Wood liquefaction; Phenol ; Microwaveheating ;Oil bath heating ;Fourier transform infraredspectroscopy （FTIR）

分类号：TQ341.1;O657.33

摘要：We examined wood liquefaction using phenol and mixed acid catalysts with microwave heating, and compared that with similar processes that use oil bath heating. The reaction time for microwave heating to achieve a residue content was one sixth, one eighteenth,and one twenty-fourth of that from oil bath heating,respectively, for phenol to wood(P/W) ratios of 2.5/1, 2/1and 1.5/1. A low P/W ratio tended to result in carbonization of liquefied wood due to an insufficient amount of phenol and localized microwave superheating. Fourier transform infrared spectroscopic(FTIR) evaluation of the liquefied residue, showed that the liquefaction rates of wood components differed. Hemicellulose was most susceptible to liquefaction, crystalline cellulose was most recalcitrant,and guaiacyl units the most prone to re-condensation. From FTIR, the chemical components and substitution patterns of bonded phenol were similar for both methods.
We examined wood liquefaction using phenol and mixed acid catalysts with microwave heating, and compared that with similar processes that use oil bath heating. The reaction time for microwave heating to achieve a residue content was one sixth, one eighteenth, and one twenty-fourth of that from oil bath heating, respectively, for phenol to wood （P/W） ratios of 2.5/1, 2/1 and 1.5/1. A low P/W ratio tended to result in carbonization of liquefied wood due to an insufficient amount of phenol and localized microwave superheating. Fourier transform infrared spectroscopic （FTIR） evaluation of the liquefied residue, showed that the liquefaction rates of wood com- ponents differed. Hemicellulose was most susceptible to liquefaction, crystalline cellulose was most recalcitrant, and guaiacyl units the most prone to re-condensation. From FTIR, the chemical components and substitution patterns of bonded phenol were similar for both methods.