Experimental research of mercury removal efficiency by activated coke
ZHAO Yu-bing1;2;GUO Miao1;2;BAI Zhong-hua1;
Abstract:
Analyse the effect of different adsorbents on gaseous mercury adsorption,compare the adsorption capacity of different activated cokes on gaseous mercury.For the same activated coke,investigate the adsorption methods on mercury removal efficiency over time,influence of particle size and contact area on efficiency.The results show that,at the beginning of adsorption reaction,the adsorption rate is maximum,then decreases until saturate the activated coke.The saturation adsorption capacity of these two kinds of activated coke is 1.137 μg/g and 0.792 μg/g respectively.With the increase of activated coke quality,the adsorption efficiency and needed time for saturation increase.Changing methods,the maximum adsorption rate is raised from 20 percent to 40 percent,that means,the higher adsorbent and mercury ratio,the greater adsorption efficiency.Increase the contact area of adsorbent with mercury-containing gas can improve mercury removal efficiency.
Key Words: gaseous mercury;activated coke;adsorption;adsorption capacity;mercury removal efficiency
Foundation: 国家电网公司产业化项目(FT71-10-04)
Authors: ZHAO Yu-bing1;2;GUO Miao1;2;BAI Zhong-hua1;
DOI: 10.13226/j.issn.1006-6772.2013.01.031
References:
- [1]杨刚.煤中汞的脱除技术研究进展[J].洁净煤技术,2011,17(3):82-85.
- [2]姜英,连进京,苏庆平,等.酸雨对煤中砷、汞的淋滤特征及分布规律的影响[J].洁净煤技术,2010,16(5):92-95,52.
- [3]傅丛,连进京,姜英,等.高汞煤燃烧过程中汞的析出规律试验研究[J].洁净煤技术,2007,13(6):62-65.
- [4]U.S.Environmental Protection Agency.Office of air Qual-ity Planning and Standards and Office of Research and Development[R].Washington D C:U.S.Government Printing Office,1997.
- [5]王建英,贺克雕,马丽萍.燃煤烟气中单质汞的净化脱除[J].能源环境保护,2007,21(3):5-7,18.
- [6]Laudal,Brown,Nott.Effects of flue gas constituents on mercury speciation[J].Fuel Processing Technology,2000,65-66:157-165.
- [7]R Chang,G Roffen.Effects of moisture on properties of epoxy molding compounds[J].Power Engineering,1995(51):51-57.
- [8]Olson,Miller,Sharma.Catalytic effects of carbon sorbents for mercury capture[J].Journal of hazardous materials,2000,74(1-2):61-79.
- [9]Yang Hongqun,Xu Zhenghe,Fan Maohong,et al.Adsor-bents for capturing mercury in coal-fired boiler flue gas[J].Journal of Hazardous Materials,2007,146(1-2):1-11.
- [10]Uranowski L J,Tessmer C H,Vidic R D.Effects of met-als and surface functional groups on adsorptive proper-ties of GAC[A].Innovative Technologies for Site Reme-diation and Hazardous Waste Management[C].Pitts-burgh PA,1995:26-30.
- [11]李毅鹏.活性炭的表面化学与表面改性[J].西北煤炭,2004,2(4):9-10,20.
- [12]叶群峰,王成云,徐新华,等.高锰酸钾吸收气态汞的传质-反应研究[J].浙江大学学报:工学版,2007,41(5):831-835,870.
- [13]左海滨,张涛,张建良,等.活性炭脱硫技术在烧结烟气脱硫中的应用[J].冶金能源,2012,31(3):56-59.
- [14]步学朋,徐振刚,李文华,等.中国活性焦烟气净化研究分析[J].洁净煤技术,2010,16(2):67-71.
- ZHAO Yu-bing1
- 2
- GUO Miao1
- 2
- BAI Zhong-hua1
- 2
- MA Chen-teng1
- 2
- SHI Ya-wei1
- 2(1.State Grid Electric Power Research Institute
- Nanjing 210003
- China
- 2.Beijing Guodian Futong Science and Technology Development Co.
- Ltd.
- Beijing 100070
- China)
- ZHAO Yu-bing1
- 2
- GUO Miao1
- 2
- BAI Zhong-hua1
- 2
- MA Chen-teng1
- 2
- SHI Ya-wei1
- 2(1.State Grid Electric Power Research Institute
- Nanjing 210003
- China
- 2.Beijing Guodian Futong Science and Technology Development Co.
- Ltd.
- Beijing 100070
- China)