Kinetics analysis of Phyllostachys edulis pyrolysis with a cuprous chloride catalyst
-
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 kJmol-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3参12Abstract: 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 kJmol-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.]
-
Key words:
- forest engineering /
- Phyllostachys edulis (mao bamboo) /
- catalytic pyrolysis /
- kinetics /
- CuCl
-
链接本文:
https://zlxb.zafu.edu.cn/article/doi/10.11833/j.issn.2095-0756.2012.05.007
计量
- 文章访问数: 3296
- HTML全文浏览量: 193
- PDF下载量: 1403
- 被引次数: 0