棉秆结构及热解规律的研究

[目的]研究棉秆的结构及热解规律。[方法]采用热重分析法研究了棉秆纵向（棉杆和棉根）及横向（皮层、质层和髓层）的热解特性。[结果]棉秆是一种质地不均匀的材料,其横、纵向各结构存在较大差异,各层成分含量差异明显。棉杆和棉根随升温速率增大反应程度越剧烈,炭得率依次减小,且相同升温速率下,棉杆炭得率高于棉根;皮、芯、髓层炭得率依次减小,皮层反应剧烈程度小于芯和髓层。[结论]该研究为获得棉秆活性碳技术提供了理论依据。

Research upon the Structure and Pyrolysis of Cotton Stalk

[Objective]To research upon the structure and pyrolysis of cotton stalk.[Method] In this paper thermogravimetric analysis is adopted to study pyrolysis characteristics on the longitudinal direction of cotton stalk(the stick and the root) and on the traverse direction(the cuticle,cortex and medulla).[Result] Cotton stalk is a material of uneven and irregular texture,and there are great differences in the structure of all these parts on the longitudinal and traverse directions,especially in the contents of di...