全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用：99美元
投递稿件

查看量下载量

相关文章

更多...

燃煤烟气常规污染物净化设施协同控制汞的研究

DOI: 10.13334/j.0258-8013.pcsee.2014.23.012, PP. 3924-3931

Keywords: 燃煤烟气,汞,烟气净化设施,协同控制

Full-Text   Cite this paper   Add to My Lib

Abstract:

采用OntarioHydro方法对国内20个典型燃煤电厂选择性催化还原脱硝(selectivecatalyticreductiondenitrification,SCR)系统、除尘系统(静电除尘器electrostaticprecipitator,ESP)、布袋除尘器(fabricfilter,FF)、湿法烟气脱硫系统(wetfluegasdesulfurization,WFGD)前后烟气汞的形态和浓度进行测试,研究电厂常规污染物控制设施对烟气汞的形态转化及协同控制作用。结果表明,SCR对烟气中总汞的减排效果不明显,但促进了Hg0向Hg2?的转变;SCR催化氧化Hg0与煤中的氯含量成正相关性,NH3对SCR催化氧化Hg0具有抑制作用。ESP/FF对烟气中汞的影响主要体现在对Hgp的协同脱除上,FF的脱汞效率高于ESP的脱汞效率,循环流化床锅炉配置ESP的脱汞效果高于煤粉炉配置ESP的脱汞效果。WFGD对汞的脱除依赖于烟气中Hg2?的比例,随着液气比(L/G)、pH的增加,WFGD脱汞效率逐渐增加。SCR促进了ESP、WFGD的脱汞效果,对于配置SCR?ESP?WFGD的燃煤电厂,对烟气汞的排放具有很好的协同控制能力。

 References

[1]  Pudasainee D,Kim J H,Seo Y C．Mercury emission trend influenced by stringent air pollutants regulation for coal-fired power plants in Korea[J]．Atmospheric Environment,2009,43(39)：6254-6259．
[2]  周劲松,张乐,骆仲泱,等．300 MW机组锅炉汞排放及控制研究[J]．热力发电,2008,37(4)：22-27．
[3]  Zhou Jinsong,Zhang Le,Luo Zhongyang,et al．Study on mercury emission and its control for boiler of 300 MW unit[J]．Thermal Power Generation,2008,37(4)：22-27(in Chinese)．
[4]  殷立宝,禚玉群,徐齐胜,等．中国燃煤电厂汞排放规律[J]．中国电机工程学报,2013,33(29)：1-9．
[5]  Yin Libao,Zhuo Yuqun,Xu Qisheng,et al．Mercury emission from coal-fired power plants in China[J]．Proceedings of the CSEE,2008,2013,33(29)：1-9(in Chinese)．
[6]  国家环境保护部．GB13223—2011火电厂大气污染物排放标准[S]．北京：中国标准出版社,2011．
[7]  Ministry of Environmental Protection of the People’s Republic of China．GB13223—2011 emission standard of air pollutants for thermal power plants[S]．Bejing：Standard Press of China,2011(in Chinese)．
[8]  王立刚,刘柏谦．燃煤汞污染及其控制[M]．北京：冶金工业出版社,2008：14-23．
[9]  Wang Ligang,Liu Boqian．Coal mercury pollution and its control[M]．Beijing：Metallurgical Industry Press,2008：14-23(in Chinese)．
[10]  许月阳,薛建明,管一明,等．燃煤电厂汞污染控制技术研究[J]．中国电机工程学报,2011,32(S1)：178-182．
[11]  Xu Yueyang,Xue Jianming,Guan Yiming,et al．Research on mercury control technologies for coal-fired power plants[J]．Proceedings of the CSEE,2011,32(S1)：178-182(in Chinese)．
[12]  Sjostrom S,Durham M,Bustard C J,et al．Activated carbon injection for mercury control：Overview[J]．Fuel,2010,89(6)：1320-1322．
[13]  Dombrowski K,Richardson C,Padilla J,et al．Evaluation of low ash impact sorbent injection technologies for mercury control at a Texas lignite PRB fired power plant[J]．Fuel Processing Technology,2009,90(11)：1406-1411．
[14]  Lee C W,Serre S D,Zhao Y X,et al．Mercury oxidation promoted by a selective catalytic reduction catalyst under simulated powder river basin coal combustion conditions[J]．Journal of the Air & Waste Management Association,2008,58(4)：484-493．
[15]  Kim J H,Pudasainee D,Yoon Y S,et al．Studies on speciation changes and mass distribution of mercury in a bituminous coal-fired power plant by combining field data and chemical equilibrium calculation-2010[J]．Industrial and Engineering Chemistry Research,2010,49(11)：5197-5203．
[16]  陈进生,袁东星,李权龙,等．燃煤烟气净化设施对汞排放特性的影响[J]．中国电机工程学报,2008,28(2)：72-76．
[17]  Chen Jinsheng,Yuan Dongxing,Li Quanlong,et al．Effect of flue-gas cleaning devices on mercury emission from coal-fired boiler[J]．Proceedings of the CSEE,2008,28(2)：72-76(in Chinese)．
[18]  钟丽萍,曹晏,李文英,等．燃煤电厂污染控制单元对汞释放的控制作用[J]．燃料化学学报,2010,38(6)：641-646．
[19]  Zhong Liping,Cao Yan,Li Wenyin,et al．Effect of the existing air pollutant control devices on mercury emission in coal-fired power plants[J]．Journal of Fuel Chemistry and Technology,2010,38(6)：641-646(in Chinese)．
[20]  王运军,段钰锋,杨立国,等．湿法烟气脱硫装置和静电除尘器联合脱除烟气中汞的试验研究[J]．中国电机工程学报,2008,28(29)：64-69．
[21]  Wang Yunjun,Duan Yufeng,Yang Liguo,et al．Experimental study on mercury removal by combined wet flue gas desulphurization with electrostatic precipitator[J]．Proceedings of the CSEE,2008,28(29)：64-69(in Chinese)．
[22]  唐念,盘思伟．大型煤粉锅炉汞的排放特性和迁移规律研究[J]．燃料化学学报,2013,41(4)：484-490．
[23]  Tang Nian,Pan Siwei．Study on mercury emission and migration from large scale pulverized coal-fired boiler[J]．Journal of Fuel Chemistry and Technology,2013,41(4)：484-490(in Chinese)．
[24]  Pudasainee D,Kim J H,Yoon Y S,et al．Oxidation,reemission and mass distribution of mercury in bituminous coal-fired power plants with SCR,CS-ESP and wet FGD[J]．Fuel,2012,93(3)：312-318．
[25]  Srivastava RK,Hutson N,Martin B,et al．Control of mercury emissions from coal-fired electric utility boilers[J]．Environmental science & technology,2006,40(5)：1385-1393．
[26]  Meij R,Winkel H．Mercury emissions from coal-fired power stations：The current state of the art in the Netherlands[J]．Science of the Total Environment,2006,368(1)：393-396．
[27]  支国瑞,薛志钢,李洋,等．基于国内实测燃煤电厂烟气汞排放估算的不确定度[J]．环境科学研究,2013,26(8)：814-821．
[28]  Zhi Guorui,Xue Zhigang,Li Yang,et al．Uncertainty of flue gas mercury emission from coal-fired power plants in China based on field measurements[J]．Research of Environmental Sciences,2013,26(8)：814-821(in Chinese)．
[29]  王铮,薛建明,许月阳,等．选择性催化还原协同控制燃煤烟气中汞排放效果影响因素研究[J]．中国电机工程学报,2013,33(14)：32-37．
[30]  Wang Zhen,Xue Jianming,Xu Yueyang,et al．Research on factors influencing SCR’s cooperative control in mercury emissions from coal-fired flue[J]．Proceedings of the CSEE,2013,33(14)：32-37(in Chinese)．
[31]  中国国家标准化管理委员会．GB/T 3558—1996,煤中氯含量的测定方法[S]．北京：中国标准出版社,2009．
[32]  Standardization Administration of the People’s Republic of China．GB/T 3558—1996,Determination of chlorine content in coal[S]．Beijing：China Standards Press,2009(in Chinese)．
[33]  Eswaran S,Stenger H G．Effect of halogens on mercury conversion in SCR catalysts[J]．Fuel Processing Technology,2008,89(11)：1153-1159．
[34]  Pewsto A A,Granite E J．Survey of Catalysts for Oxidation of Mercury in Flue Gas[J]．Environmental Science and Technology,2006,40(18)：5061-5069．
[35]  Eswaran S,Stenger H G．Understanding Mercury Conversion in Selective Catalytic Reduction(SCR)Catalysts[J]．Energy & Fuels,2005,19(6)：2328-2334．
[36]  Senior C L．Oxidation of Mercury across Selective Catalytic Reduction Catalysts in Coal-Fired Power Plants[J]．Journal of the Air & Waste Management Association,2006,56(1)：23-31．
[37]  Kamata H,Ueno S,Naito T,et al．Mercury Oxidation over the V 2 O 5 (WO 3 )/TiO 2 Commercial SCR Catalyst[J]．Industrial & Engineering Chemistry Research,2008,47(21)：8136-8141．
[38]  王运军,段钰锋,杨立国,等．燃煤电站布袋除尘器和静电除尘器脱汞性能比较[J]．燃料化学学报,2008,36(1)：23-29．
[39]  Wang Yunjun,Duan Yueng,Yang Liguo,et al．Comparison ofmercury removal characteristic between fabric filter and electrostatic precipitators of coal-fired power plants[J]．Journal of Fuel Chemistry and Technology,2008,36(1)：23-29(in Chinese)．
[40]  段钰锋,江贻满,杨立国,等．循环流化床锅炉汞排放和吸附实验研究[J]．中国电机工程学报,2008,28(32)：1-5．
[41]  Duan Yufeng,Jiang Yiman,Yang Liguo,et al．Experimental study on mercury emission and adsorption in circulating fluidized bed boiler[J]．Proceedings of the CSEE,2008,28(32)：1-5(in Chinese)．
[42]  Pavlish J H,Sondreal E A,Mann M D,et al．Status review of mercury control options for coal-fired power plants[J]．Fuel Processing Technology,2003,82(2-3)：89-165．
[43]  李志超,段钰锋,王运军,等．300 MW燃煤电厂ESP和WFGD对烟气汞的脱除特性[J]．燃料化学学报,2013,41(4)：491-498．
[44]  Li Zhichao,Duan Yufeng,Wang Yunjun,et al．Mercury removal by ESP and WFGD in a 300 MW coal-fired power plant[J]．Journal of Fuel Chemistry and Technology,2013,41(4)：491-498(in Chinese)．
[45]  Chang C S,Ghorishi S B．Simulation and evaluation of elemental mercury concentration increase in flue gas across a wet scrubber[J]．Environment Science Technology,2003,37(24)：5763-5766．

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133