Thermal Decomposition Characteristics and Kinetics of Myriophyllum spicatum in nitrogen atmosphere

2019 2nd International Conference of Green Buildings and Environmental Management

生态环境科学

Li, Tian-Guo^1^2 ; Gu, Jian^1^2 ; Yang, Hong^3 ; Yuan, Sheng-Ping^1^2 ; Zhang, Jian-Yu^1^2 ; Li, Bo^1^2 ; He, Yong-Mei^1^2 ; Zhan, Fang-Dong^1^2 ; Jiang, Ming^1^2

College of Resources and Environment, Yunnan Agricultural University, Kunming

650201, China^1

Yunnan Engineering Laboratory for Agro-environment Pollution Control and Ecoremediation, Kunming

650201, China^2

Yantai Academy for Environmental Engineering Consultation and Design, Yantai

264025, China^3

关键词: Apparent activation energy;    Decomposition characteristics;    Myriophyllum spicatum;    Nitrogen atmospheres;    Preparation conditions;    Pyrolysis kinetics;    Thermal decomposition process;    Thermogravimetric-differential thermal analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/310/4/042048/pdf
DOI  :  10.1088/1755-1315/310/4/042048

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In order to investigate the biochar utilization value and preparation conditions of Myriophyllum spicatum after harvested. The thermal decomposition characteristics of Myriophyllum spicatum was studied via synchronous thermogravimetric-differential thermal analysis (TG-DTA). The results show that the thermal decomposition process of Myriophyllum spicatum could be divided into four stages under nitrogen atmosphere. Most of the decomposition occurred in the third (211∼343°C) and fourth (343∼1000°C) stages with an average weight loss of 34.6% and 33.0%, respectively. The effect of heating rate on thermal decomposition process was not obvious. The apparent activation energies obtained by Kissinger method and FWO peak maximum evolution method were 175.26 kJ/mol and 175.67 kJ/mol, respectively, which indicated that this two methods were suitable for the study of pyrolysis kinetics of Myriophyllum spicatum.