毛竹催化热解动力学研究

 利用热重技术在不同升温速率和氮气气氛下对毛竹Phyllostachys edulis的氯化亚铜催化热解失重行为进行了研究。结果显示：毛竹主要热解温度区间为200.0~379.0 ℃，当温度为328.5 ℃时达到最大热解速率17.18%·min^－1；添加氯化亚铜后，毛竹的热解温度降低，热解速率增大，热解所需时间缩短。还通过Flynn-wall-Ozawa法求解了毛竹热解的动力学参数，纯毛竹的热解平均活化能为213.21 kJ·mol^－1，平均指前因子约为10¹⁷；氯化亚铜的加入使指前因子增大了10倍，其值约为10¹⁸，平均活化能变化不明显。图6表3参12

Kinetics analysis of Phyllostachys edulis pyrolysis with a cuprous chloride catalyst

Thermogravimetric analysis was used to study the cuprous chloride （CuCl） catalytic pyrolysis characteristics of Phyllostachys edulis （mao bamboo） at different heating rates in a nitrogen atmosphere. The Flynn-Wall-Ozawa method was used to determine the kinetic parameters in pyrolysis. Results showed that the pyrolysis temperature range of bamboo was about 200.0－379.0 ℃ with a maximum weight loss rate of 17.18% at about 328.5 ℃. For Ph. edulis，CuCl catalysis reduced the pyrolysis temperature，increased the pyrolysis rate，and shortened the pyrolysis time. The Flynn-Wall-Ozawa method revealed that the average pyrolysis activation energy of Ph. edulis was 213.21 kJ·mol^－1. Also，the average pre-exponential factor was about 10¹⁷ meaning that CuCl increased the pre-exponential factor 10 times to about 10¹⁸；however，the average activation energy did not change.［Ch，6 fig. 3 tab. 12 ref.］