热解炭
纤维素乙醇
热解
燃烧
热分解
纤维素
材料科学
残留物(化学)
分解
制浆造纸工业
热的
复合材料
废物管理
化学
有机化学
工程类
热力学
物理
作者
Fred Shafizadeh,Peter P. S. Chin
出处
期刊:Acs Symposium Series
日期:1977-06-01
卷期号:: 57-81
被引量:197
标识
DOI:10.1021/bk-1977-0043.ch005
摘要
When wood is heated at elevated temperatures, it will show a permanent loss of strength resulting from chemical changes in its components. The thermal decomposition can start at temperatures below 100°C if wood is heated for an extended period of time. Figure 1 shows that wood heated at 120° loses 10% of its strength in about one month, but i t takes only one week to obtain the same loss of strength if it is heated at 140° (1). Heating at higher temperatures gives volatile decomposition products and a charred residue. The pyrolytic reactions and products control the combustion process and relate to the problems of cellulosic fires, chemical conversion of cellulosic wastes and utilization of wood residues as an alternative energy source. In our laboratory, the pyrolytic reactions of wood and its major components have been investigated by a variety of analytical methods. Thermal analysis of cottonwood and its
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