摘要
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。
Thermogravimetric analysis was used to study the cuprous chloride （CuCI） catalytic pyrolysis char acteristics of Phyllostachys edulis （mao bamboo） at different heating rates in a nitrogen atmosphere. The Flynn WallOzawa method was used to determine the kinetic parameters in pyrolysis. Results showed that the pyroly sis temperature range of bamboo was about 200.0379.0 ℃ with a maximum weight loss rate of 17.18% at about 328.5 ℃. For Ph. edulis, CuC1 catalysis reduced the pyrolysis temperature, increased the pyrolysis rate, and shortened the pyrolysis time. The FlynnWallOzawa method revealed that the average pyrolysis acti vation energy of Ph. edulis was 213.21 kJ ·mol1. Also, the average preexponential factor was about 1017 meaning that CuC1 increased the preexponentia] factor 10 times to about 1018; however, the average activa tion energy did not change. [Ch, 6 fig. 3 tab. 12 ref.]
出处
《浙江农林大学学报》
CAS
CSCD
北大核心
2012年第5期680-685,共6页
Journal of Zhejiang A&F University
基金
浙江省科学技术优先主题重大农业项目(2010C12001)
浙江省自然科学基金资助项目(Y3090190)
关键词
林业工程
毛竹
催化热解
动力学
氯化亚铜
forest engineering
Phyllostachys edulis （mao bamboo）
catalytic pyrolysis
kinetics
CuC1
