Effect of minerals on semi-coke combustion characteristics of maceral with different reducibility

被引：0
|
作者：
Zhao Y. [1 ,2 ]
Hu H. [1 ]
Jin L. [1 ]
Wei X. [2 ]
机构：
[1] Institute of Coal Chemical Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, Liaoning
[2] School of Chemical Engineering, China University of Mining and Technology, Xuzhou, 221116, Jiangsu
来源：
Huagong Xuebao/CIESC Journal | 2019年 / 70卷 / 08期
关键词：
Coal combustion; Maceral; Mineral matter; Pyrolysis; Reactivity; Reducibility;
D O I：
10.11949/0438-1157.20190205
中图分类号：
学科分类号：
摘要：
The effects of intrinsic minerals and three inorganic components (CaO, Fe2O3 and Al2O3) on the semi-coke combustion reactivity of maceral with different reducibility were investigated on a thermogravimetric analyzer. The results indicated that the combustion reactivity of maceral chars from the weakly reductive coal is better than that from the reductive coal. The inherent mineral matter of vitrinite reduces the ignition temperature of vitrinite chars, while the inherent mineral matter of inertinite shows obvious inhibition effect on their chars combustion reaction. Three added mineral matter inhibit the combustion reaction of maceral chars from the reductive coal, and the relative inhibiton sequence could be described as follows: Al2O3>CaO>Fe2O3, while CaO has a little catalytic effect on the combustion reaction of maceral chars from the weakly reductive coal, and the inhibition effect of Al2O3 and Fe2O3 on the combustion reaction of maceral chars from the weakly reductive coals is lower than that on the combustion reaction of maceral chars from the reductive coal. © All Right Reserved.
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页码：2946 / 2953
页数：7
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