Particle size effect on the oxidation mechanism of lignites

被引：2

作者：

Kök, MV ^{[1
]}

机构：

[1] Middle E Tech Univ, Dept Petr & Nat Gas Engn, TR-06531 Ankara, Turkey

来源：

THERMOCHIMICA ACTA | 1999年 / 336卷 / 1-2期

关键词：

lignite; combustion; particle size; oxidation mechanism;

D O I：

10.1016/S0040-6031(99)00213-0

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this research, effect of particle size on the oxidation mechanisms of Cayirhan, Tuncbilek and Soma lignites are studied. Non-isothermal thermogravimetry and derivative thermogravimetry (TG/DTG) experiments were carried out for 12 different size fractions. Data obtained from TG/DTG experiments are converted into dimensionless time (instantaneous size/original size) versus dimensionless time (time/burn-out time) to show the progress of oxidation mechanisms of lignites, It was found that lignites show linear behaviour at elevated temperatures, which justifies the assumption that chemical reaction is the controlling step. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：121 / 125

页数：5

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