Particulate matter formation characteristics during Zhundong coal combustion at different temperatures

被引：0

作者：

Zeng, Xian-Peng ^{[1
]}

Yu, Dun-Xi ^{[1
]}

Fan, Bin ^{[1
]}

Wu, Jian-Qun ^{[1
]}

Xu, Ming-Hou ^{[1
]}

机构：

[1] State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan

来源：

Meitan Xuebao/Journal of the China Coal Society | 2015年 / 40卷 / 11期

关键词：

Alkali metal; Combustion temperature; Formation characteristics; Particulate matter; Zhundong coal;

D O I：

10.13225/j.cnki.jccs.2015.8009

中图分类号：

学科分类号：

摘要：

The particulate matter formation characteristics of Zhundong coal at different combustion temperatures was studied in a drop tube furnace. Four temperatures, i. e., 900, 1 000, 1 100, and 1 300℃, were tested. The particulate matters were collected by a low pressure impactor (LPI) to get the particle size distributions, and the elemental compositions were analyzed by XRF. Significant differences were observed during Zhundong coal combustion at different temperatures. The amounts of submicron particulate matter (PM1) produced at 900℃ and 1 000℃ are much higher than that at 1 100℃ and 1 300℃, and the peak size is larger than that at 1 100℃ and 1 300℃. The amounts of super-micron particulate matter (PM1-10) produced at 900-1 100℃ are similar, while it increases significantly at 1 300℃. By analyzing the particle elemental compositions, it is found that the adsorption or reaction of sodium by coal ash is the main reason for PM1 reduction at high temperature. © 2015, China Coal Society. All right reserved.

引用

页码：2690 / 2695

页数：5

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