Particulate matter formation characteristics during Zhundong coal and rice husk co-combustion

被引：0

作者：

Zeng X. ^{[1
]}

Yu D. ^{[1
]}

Xiu Y. ^{[2
]}

Fan B. ^{[1
]}

Wu J. ^{[1
]}

Du Y. ^{[1
]}

Yu X. ^{[1
]}

Yao H. ^{[1
]}

Xu M. ^{[1
]}

机构：

[1] State Key Laboratory of Coal Combustion(Huazhong University of Science and Technology), Wuhan, 430074, Hubei Province

[2] Project Construction Management Center, Urban Construction Bureau of Huangdao District of Qingdao City, Qingdao, 266555, Shandong Province

来源：

Zhongguo Dianji Gongcheng Xuebao | / 16卷 / 4429-4435期

基金：

中国国家自然科学基金;

关键词：

Co-combustion; Particulate matters; PM[!sub]1[!/sub; Rice husk; Zhundong coal;

D O I：

10.13334/j.0258-8013.pcsee.160415

中图分类号：

学科分类号：

摘要：

Co-combustion of coal and biomass is an effective way to reduce the emission of pollutant and greenhouse gas during power generation. It is of particular importance to concern the particulate matter (PM) emission during this process, as the hazy weather becomes more and more serious in China. Experiment was conducted on a drop tube furnace to study the PM formation characteristics during co-combustion of a typical Zhundong coal and rice husk. The furnace temperature is 1300℃, and rice husk was blended with Zhundong coal at ratios of 7.5%, 12.5% and 20%, respectively. The PM produced was collected by a low pressure impactor (LPI), and its composition was analyzed by SEM-EDS. The results show that the main composition of submicron particulate matter (PM1) produced by Zhundong coal consists of Na, Mg, Ca, Fe and S, and Ca is the main composition of super-micron particulate matter (PM1-10). While for rice husk, the PM1 mainly consists of K, Cl, P, and PM1-10 is dominated by Si. The amount of PM1 in per unit mass was reduced during co-combustion when the ratio of rice husk was at 12.5% and 20%. And it was attributed to the interactions between the minerals in these two fuels and the vaporized elements (Na, Mg and K) released from the fuels. The PM1-10 produced in per unit mass ash during co-combustion is almost equal to the value calculated from the two fuels when they combusted alone, and its amount decreases as the ratio of rice husk increases. © 2016 Chin. Soc. for Elec. Eng.

引用

页码：4429 / 4435

页数：6

共 28 条

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