树皮的热分析法研究

Thermal Analysis of Wood Bark

应用热分析法研究造纸厂树皮废渣的热分解过程。通过对热重曲线(TG)和差热曲线(DTA)的解析,可知树皮发热值和炭化物得率比木材高,树皮添加磷酸制取活性炭的炭活化过程的热化学变化动态与木材相似,为树皮的热化学加工的合理利用提供实验依据。

The pyrolysis of wood bark is examined through thermal analysis. Differential and thermogravimetric curves thus obtained suggested that the calorific value and charring yield of wood bark are comparatively higher than those of wood.Phosphorous acid additive is employed for wood bark to have its carbon component activated. The dynamics of charring in carbon activated bark is examined and found to be much similar to that of wood tested. A better understanding of the thermochemistry of wood bark will definitely be useful for the rational usage of wood bark.