Emission reduction effect on PM2.5, SO2 and NOx by using red mud as additive in clean coal briquetting

doi:10.1016/j.atmosenv.2019.117203

IEECAS OpenIR > 粉尘与环境研究室

	Emission reduction effect on PM2.5, SO2 and NOx by using red mud as additive in clean coal briquetting
	Zhang, Yue 1; Shen, Zhenxing 1; Zhang, Bin 1; Sun, Jian 3; Zhang, Leiming 4; Zhang, Tian 1; Xu, Hongmei 1; Bei, Naifang 1; Tian, Jie 2; Wang, Qiyuan 2; Cao, Junji 2
通讯作者	Shen, Zhenxing(zxshen@mail.xjtu.edu.cn)
	2020-02-15
发表期刊	ATMOSPHERIC ENVIRONMENT
ISSN	1352-2310
卷号	223 页码:9
摘要	Emissions of PM2.5 and trace gases from residential coal consumption for winter heating have caused severe air pollution in northern China. Clean coal briquettes can meet both demands of clean environment and residential heating. As a byproduct from the Bayer process, red mud has the potential to be used as briquettes additive, although its recycling procedure is challenging. In this study, red mud was used to replace the currently used calcium oxide as additive in coal briquetting. Twelve sets of combustion experiments were conducted for bituminous coal, anthracite coal and their briquettes, and each set of the experiment was repeated at least three times. Emission profiles of PM2.5, SO2 and NOx were recorded during experiments. The highest emission reduction rates for PM2.5, SO2 and NOx were achieved at red mud contents of 10%, 5% and 2.5%, respectively, for bituminous coal, and at 10%, 5% and 7.5%, respectively, for anthracite coal. The corresponding emission reduction rates were 37.5%, 25.8% and 61.9% for bituminous coal and 31.2%, 55.1% and 17.9% for anthracite coal. In addition, both SO2 and NOx emissions showed clear peaks during the initial-burning stage for the two kinds of coals, while SO2 emission for anthracite coal burning showed another peak during the char-burning stage. Benefit analysis was also conducted assuming all the currently used raw coals were replaced with clean coal briquettes in Shaanxi province. The overall reductions are 2270.46 (t) year(-1) for PM2.5, 1538.00 (t) year(-1) for SO2 and 2177.81 (t) year(-1) for NOx in the province. Results presented in this study highlight that development of clean energy policies, such as replacing bituminous coal and anthracite coal with clean coal briquettes, will be effective to improve the regional air quality.
关键词	Clean coal briquettes Red mud Emission reduction
DOI	10.1016/j.atmosenv.2019.117203
关键词[WOS]	TRACE GAS EMISSIONS ; FLUIDIZED-BED COMBUSTION ; PULVERIZED COAL ; HOUSEHOLD STOVES ; HYDROGEN-SULFIDE ; CALCIUM-OXIDE ; BAYER PROCESS ; FUEL USE ; BIOMASS ; NITROGEN
收录类别	SCI ; SCI
语种	英语
资助项目	National Key R&D Program of China[2017YFCO212205] ; Natural Science Foundation of Shaanxi Province, China[2019JQ-386] ; China Postdoctoral Science Foundation[2019M653658]
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
项目资助者	National Key R&D Program of China ; Natural Science Foundation of Shaanxi Province, China ; China Postdoctoral Science Foundation
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000517660200050
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：36[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/12657
专题	粉尘与环境研究室
通讯作者	Shen, Zhenxing
作者单位	1.Xi An Jiao Tong Univ, Dept Environm Sci & Engn, Xian 710049, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, SKLLQG, Xian 710061, Peoples R China 3.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian 710049, Peoples R China 4.Environm & Climate Change Canada, Sci & Technol Branch, Air Qual Res Div, Toronto, ON, Canada
推荐引用方式 GB/T 7714	Zhang, Yue,Shen, Zhenxing,Zhang, Bin,et al. Emission reduction effect on PM2.5, SO2 and NOx by using red mud as additive in clean coal briquetting[J]. ATMOSPHERIC ENVIRONMENT,2020,223:9.
APA	Zhang, Yue.,Shen, Zhenxing.,Zhang, Bin.,Sun, Jian.,Zhang, Leiming.,...&Cao, Junji.(2020).Emission reduction effect on PM2.5, SO2 and NOx by using red mud as additive in clean coal briquetting.ATMOSPHERIC ENVIRONMENT,223,9.
MLA	Zhang, Yue,et al."Emission reduction effect on PM2.5, SO2 and NOx by using red mud as additive in clean coal briquetting".ATMOSPHERIC ENVIRONMENT 223(2020):9.