Effect of Metal Compounds on Pyrolysis Profiles of Douglas Fir
Effect of Metal Compounds on Pyrolysis Profiles of Douglas Fir
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DOI：
10.1252/jcej.07we275
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发表时间：
2008-04
影响因子：
0.8
通讯作者：
Yoshikage Ohmukai;Kosuke Fujimoto;I. Hasegawa;Hayashi Shigeya;K. Mae
中科院分区：
文献类型：
--
作者：
Yoshikage Ohmukai;Kosuke Fujimoto;I. Hasegawa;Hayashi Shigeya;K. Mae
用金属化合物对道格拉斯冷杉进行了热解实验，考察了金属化合物对热解曲线的影响。通过加入一些金属化合物，轮廓急剧地向更低或更高的温度移动。另一方面，金属氯化物的存在促进了花旗松在低温下的分解。具有较高亲水性的金属化合物使道格拉斯冷杉的分解向低温方向移动，在低温下通过促进交联剂的交联反应，导致焦炭增加，焦油减少。从这些结果可以看出，控制低温脱水是获得高焦炭产率和最大限度减少焦油生成的关键因素。
Pyrolysis of Douglas fir with metal compounds has been carried out to examine the effect of metal compounds on the pyrolysis profiles. The profiles dramatically shifted into lower or higher temperatures by adding some metal compounds. On the other hand, the presence of metal chlorides promoted the decomposition of Douglas fir at low temperature. The metal compounds having high hydrophilicity, by which Douglas fir decomposition was shifted toward lower temperatures, caused an increase in char and a decrease in tar through promoting the cross-linking reaction at low temperature. From these results, it can be said that the control of dehydration at low temperature is an essential factor to achieve high char yield with minimizing tar formation.