GYIG OpenIR  > 环境地球化学国家重点实验室
Actual mercury speciation and mercury discharges from coal-fired power plants in Inner Mongolia, Northern China
Shunlin Tang;  Lina Wang;  Xinbin Feng;  Zhaohui Feng;  Ruiyang Li;  Huipeng Fan;  Ke Li
2016
Source PublicationFuel
Volume180Pages:194-204
Abstract

Mercury species distribution in the flue gas from three typical coal-fired power plants have been investigated using a C-5000 sampler for Ontario Hydro Method (OHM) to evaluate specified Hg emission inventories in the largest coal-production province of China, Inner Mongolia. The feed coal, bottom ash, fly ash and gypsum have also been sampled in the field. Mercury emissions are in the dominant form of Hg0 (>85%). The Hg2+ (<15%) and the Hgp (<2%) emissions are minor fractions of Hgt in the flue gas. The wet limestone flue gas desulfurization device (WLFGD) showed much higher removal efficiency for Hg2+ (87–95%) than for the other two Hg species. The input Hg/output Hg varied from 92% to 115% for the tested 3 coal-fried utility boilers during sampling time. We obtained comprehensive Hg discharge factors, including direct atmospheric Hg emission factors and indirect discharge factors of Hg associated with bottom ash, fly ash and gypsum, to the environment, designating the fates of Hg in coal. We estimated the Hg discharges from coal-fired power plants in Inner Mongolia in 2008–2014 and expanded to China. The maximum of direct Hg emissions from coal-fired power plants of Inner Mongolia was 24 Mg in 2012. The Chinese coal-fired power plants emitted directly 100 Mg Hg to the atmosphere every year at the nationwide air control actions. The maximum discharges of Hg associated with fly ash and gypsum of Inner Mongolia was 81 Mg and 11 Mg in 2012, respectively. The national Hg discharges with fly ash and gypsum every year are respectively about 300 Mg and 82 Mg, majority of which may be reemitted to the atmosphere by the utilization industry. Therefore, mercury emissions from coal-fired power plants are not the largest single source of Hg to the atmosphere in normal operation of the current efficient denitrification, particles control and desulfurization devices. Instead, the utilization industry of fly ash and gypsum would be emitting more Hg to the atmosphere.

KeywordMercury Species direct Hg Emission factors Hg Discharge Factors coal-fired Power Plants inner Mongolia
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/42920512-1/9619
Collection环境地球化学国家重点实验室
Affiliation1.Institute of Resources and Environment, Henan Polytechnic University, Jiaozuo, Henan Province 454000, China
2.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China
3.Jiaozuo Environmental Monitoring Station, Jiaozuo, Henan Province 454000, China
Recommended Citation
GB/T 7714
Shunlin Tang;Lina Wang;Xinbin Feng;Zhaohui Feng;Ruiyang Li;Huipeng Fan;Ke Li. Actual mercury speciation and mercury discharges from coal-fired power plants in Inner Mongolia, Northern China[J]. Fuel,2016,180:194-204.
APA Shunlin Tang;Lina Wang;Xinbin Feng;Zhaohui Feng;Ruiyang Li;Huipeng Fan;Ke Li.(2016).Actual mercury speciation and mercury discharges from coal-fired power plants in Inner Mongolia, Northern China.Fuel,180,194-204.
MLA Shunlin Tang;Lina Wang;Xinbin Feng;Zhaohui Feng;Ruiyang Li;Huipeng Fan;Ke Li."Actual mercury speciation and mercury discharges from coal-fired power plants in Inner Mongolia, Northern China".Fuel 180(2016):194-204.
Files in This Item:
File Name/Size DocType Version Access License
Actual mercury speci(529KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Shunlin Tang;Lina Wang;Xinbin Feng;Zhaohui Feng;Ruiyang Li;Huipeng Fan;Ke Li]'s Articles
Baidu academic
Similar articles in Baidu academic
[Shunlin Tang;Lina Wang;Xinbin Feng;Zhaohui Feng;Ruiyang Li;Huipeng Fan;Ke Li]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Shunlin Tang;Lina Wang;Xinbin Feng;Zhaohui Feng;Ruiyang Li;Huipeng Fan;Ke Li]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Actual mercury speciation and mercury discharges from coal-fired power plants in Inner Mongolia, Northern China.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.