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

被引：12

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

页码：1 / 7

页数：7

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