文献类型：会议论文

英文题名：Response Machanisms and Prediction Models of Changes in Wood Chemical Components to Steam-heat Treatment

作者：Cao, Yongjian[1] Zhang, Yanjun[1] Lu, Jianxiong[2] Huang, Rongfeng[2]

第一作者：Cao, Yongjian

通信作者：Cao, YJ[1]

机构：[1]Guangdong Acad Forestry, Res Inst Forest Ind, Guangzhou, Guangdong, Peoples R China;[2]Chinese Acad Forestry, Res Inst Wood Ind, Beijing, Peoples R China

会议论文集：International Conference on Biobase Material Science and Engineering

会议日期：OCT 21-23, 2012

会议地点：Changsha, PEOPLES R CHINA

语种：英文

外文关键词：Chinese fir; Steam-heat treatment; Chemical component contents; FTIR; response machanism; Regression models

年份：2012

摘要：Sapwood and heartwood of Chinese fir were thermal treated with steam that was used as a shielding gas and a heating medium at temperatures ranging from 170 to 230 degrees C and time duration from 1 to 5 hours in an airtight chamber with an atmosphere comprising less than 2 per cent of oxygen. The chemical component contents of wood were investigated under different treatment combinations. The results showed that the holocellulose and alpha-cellulose contents decreased while the relative lignin content increased with the increase of treatment temperature and time. FTIR analysis indicated that the functional groups in wood had been decreased due to pyrolysis reaction. The prediction models between treatment parameters and chemical component contents were established in order to provide theoretical support to wood industry.