A Kinetic Study of the Stepwise Thermal Decomposition of Various Coals from Mongolia

被引：10
作者：
Fetisova, O. Yu. [1 ]
Kuznetsov, P. N. [1 ]
Purevsuren, B. [2 ]
Avid, B. [2 ]
机构：
[1] Russian Acad Sci, Siberian Branch, Inst Chem & Chem Technol, Krasnoyarsk 660036, Russia
[2] Mongolian Acad Sci, Inst Chem & Chem Technol, Ulan Bator 13330, Mongolia
来源：
SOLID FUEL CHEMISTRY | 2021年 / 55卷 / 01期
基金：
俄罗斯基础研究基金会;
关键词：
coal; thermal decomposition; differential thermogravimetry; kinetics; activation energy; compensation effect; NONISOTHERMAL PYROLYSIS; ACTIVATION-ENERGY; TEMPERATURE;
D O I：
10.3103/S0361521921010031
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The thermolysis of Mongolian coals of different ranks was studied using thermal analysis (TG/DTG). The stepwise decomposition under conditions of programmed heating to 1000 degrees C in an atmosphere of argon was found. The kinetic parameters of pyrolysis were determined based on thermogravimetric analysis with the use of model-fitting (Coats-Redfern) and model-free (Ozawa-Flynn-Wall) calculation methods. Changes in the activation energy with the degree of decomposition of the organic matter of coals of different ranks were established. A kinetic compensation effect was revealed, which was, probably due to the multicomponent composition of coals.
引用
收藏
页码：1 / 7
页数：7
相关论文
共 16 条
12