Study on mercury oxidation by SCR catalyst in coal-fired power

被引：9

作者：

Li, Bing ^{[1
]}

Wang, Hongliang ^{[2
]}

Xu, Yueyang ^{[2
]}

Xue, Jianming ^{[2
]}

机构：

[1] Huadian Elect Power Res Inst, Shandong Branch, Jinan 250014, Shandong, Peoples R China

[2] GuoDian Sci & Technol Res Inst, Nanjing 210023, Jiangsu, Peoples R China

来源：

POWER AND ENERGY SYSTEMS ENGINEERING, (CPESE 2017) | 2017年 / 141卷

关键词：

SCR catalyst; mercury; catalytic oxidation; coal-fired power plant; flue gas; CONVERSION;

D O I：

10.1016/j.egypro.2017.11.040

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The mercury speciation and concentration in flue gas before and after selective catalytic reduction (SCR) system of a 300MW coal-fired utility boiler has been determined using Ontario Hydro method (OHM). The effect of SCR catalyst on mercury speciation transformation is investigated and the impact of chlorine content in coal and ammonia on mercury oxidation by SCR catalyst are examined. The results show that SCR has little effect on mercury emission reduction and the concentration of particulate mercury changes little before and after SCR. SCR catalyst promotes the oxidation of elemental mercury to oxidized mercury and has significant impact on mercury emission. The oxidation of elemental mercury by SCR catalyst is greatly affected by chlorine content in coal and the higher the chlorine content in coal, the higher the concentration of oxidized mercury at SCR outlet. NH3 is detrimental to oxidation of elemental mercury by SCR catalyst. (C) 2017 The Authors. Published by Elsevier Ltd.

引用

页码：339 / 344

页数：6

共 50 条

[1] The research of SCR catalyst for elemental mercury conversion in coal-fired flue gas
Zhang, Qiang
Pan, Weiguo
Guo, Ruitang
[J]. ENVIRONMENTAL ENGINEERING, PTS 1-4, 2014, 864-867 : 1470 - 1473
[2] Discussion and Research on the Deactivation of the SCR Catalyst in the Coal-fired Power Plants
Zhao, Ning
Pan, Siwei
Wei, Zhengle
[J]. ENVIRONMENTAL PROTECTION AND RESOURCES EXPLOITATION, PTS 1-3, 2013, 807-809 : 1431 - 1436
[3] Significance of RuO2 Modified SCR Catalyst for Elemental Mercury Oxidation in Coal-fired Flue Gas
Yan, Naiqiang
Chen, Wanmiao
Chen, Jie
Qu, Zan
Guo, Yongfu
Yang, Shijian
Jia, Jinping
[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2011, 45 (13) : 5725 - 5730
[4] Effects of SCR catalyst breakage on mercury emission properties in coal-fired power plant: field testing and laboratory evaluation
Teng, Yang
Li, Peixuan
Wang, Guangyu
Wang, Chen
Qi, Nana
Zhang, Kai
Wang, Minwu
[J]. APPLIED CATALYSIS A-GENERAL, 2023, 650
[5] Regeneration of commercial SCR catalyst deactivated by arsenic poisoning in coal-fired power plants
Qiang Lu
Zulfiqar Ali
Hao Tang
Tahir Iqbal
Zulqarnain Arain
Min-shu Cui
Ding-jia Liu
Wen-yan Li
Yong-ping Yang
[J]. Korean Journal of Chemical Engineering, 2019, 36 : 377 - 384
[6] DeNOx performance of SCR catalyst for exhaust gas from coal-fired power plant
School of Energy and Power Engineering, Shandong University, Jinan 250061, Shandong, China
[J]. Huagong Xuebao, 2013, 7 (2611-2618):
[7] Regeneration of commercial SCR catalyst deactivated by arsenic poisoning in coal-fired power plants
Lu, Qiang
Ali, Zulfiqar
Tang, Hao
Iqbal, Tahir
Arain, Zulqarnain
Cui, Min-shu
Liu, Ding-jia
Li, Wen-yan
Yang, Yong-ping
[J]. KOREAN JOURNAL OF CHEMICAL ENGINEERING, 2019, 36 (03) : 377 - 384
[8] Mercury control for coal-fired power plants
Hall, Robert E.
Lee, Chun-Wai
Hutson, Nick D.
[J]. CHALLENGES OF POWER ENGINEERING AND ENVIRONMENT, VOLS 1 AND 2, 2007, : 850 - 854
[9] Oxidation, reemission and mass distribution of mercury in bituminous coal-fired power plants with SCR, CS-ESP and wet FGD
Pudasainee, Deepak
Kim, Jeong-Hun
Yoon, Young-Sik
Seo, Yong-Chil
[J]. FUEL, 2012, 93 (01) : 312 - 318
[10] Study on Optimization Experiment of SCR Denitrification Technologies in a Coal-fired Power Plant
Zhang, Limeng
Dong, Xinguang
Hou, Fanjun
Liu, Ke
Che, Gang
[J]. 2017 3RD INTERNATIONAL CONFERENCE ON ENVIRONMENTAL SCIENCE AND MATERIAL APPLICATION (ESMA2017), VOLS 1-4, 2018, 108

← 1 2 3 4 5 →