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http://dx.doi.org/10.5762/KAIS.2021.22.5.1

Development of Adsorbent for Vapor Phase Elemental Mercury and Study of Adsorption Characteristics  

Cho, Namjun (School of Energy Materilas & Chemical Engineering, Korea University of Technology & Education)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.22, no.5, 2021 , pp. 1-6 More about this Journal
Abstract
Mercury, once released, is not destroyed but accumulates and circulates in the natural environment, causing serious harm to ecosystems and human health. In the United States, sulfur-impregnated activated carbon is being considered for the removal of vapor mercury from the flue gas of coal-fired power plants, which accounts for about 32 % of the anthropogenic emissions of mercury. In this study, a high-efficiency porous mercury adsorption material was developed to reduce the mercury vapor in the exhaust gas of coal combustion facilities, and the mercury adsorption characteristics of the material were investigated. As a result of the investigation of the vapor mercury adsorption capacity at 30℃, the silica nanotube MCM-41 was only about 35 % compared to the activated carbon Darco FGD commercially used for mercury adsorption, but it increased to 133 % when impregnated with 1.5 % sulfur. In addition, the furnace fly ash recovered from the waste copper regeneration process showed an efficiency of 523 %. Furthermore, the adsorption capacity was investigated at temperatures of 30 ℃, 80 ℃, and 120 ℃, and the best adsorption performance was found to be 80 ℃. MCM-41 is a silica nanotube that can be reused many times due to its rigid structure and has additional advantages, including no possibility of fire due to the formation of hot spots, which is a concern when using activated carbon.
Keywords
Mercury Vapor; Adsorbent; Adsorption Capacity; Silica Nanotube; Fly Ash; Sulfur Impregnation;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 J. H. Lee, Study on the emission characteristics of mercury compounds from anthropogenic sources and laboratory furnace, Yonsei Uinvesity, Korea, July 2006.
2 C. Lee, "Development of high efficiency adsorbent, injection system and adsorbent coated filter for control of Hg on coal-fired power plants", Technical Report-2013000110002, Korea Environmental Industry & Technology Institute, Korea, June 2015.
3 B. Padak, M. Brunetti, A. Lewis, J. Wilcox, "Mercury binding on activated carbon", Environ Prog, Vol.25, pp.319-326, 2006.   DOI
4 S. Vitolo, R. Pini, "Deposition of sulfur from H2S on porous adsorbents and e ect on their mercury adsorption capacity", Geothermics Vol.28, pp.341-354, 1999.   DOI
5 J. Yang, Y. Zhao, S. Zhang, C. Zheng, ect., 'Mercury removal from flue gas by magnetospheres present in fly ash: role of iron species and modification by HF', Fuel Process. Technol., Vol.167 pp.263-270, 2017.   DOI
6 M. C. Ferens, "Review of the Physiological Impact of Mercury", US Environmental Protection Agency, US Gov. Printing Office, Washington D.C. 1997.
7 K. M. Rice, E. M. Walker, M. Wu, C. Gillette, E. R. Blough, "Environmental mercury and its toxic effects", J. Prev. Med. Public Health, Vol.47, No.2, pp.74-83, March 2014. DOI: http://dx.doi.org/10.3961/jpmph.2014.47.2.74   DOI
8 Z. M. Siddiqi, "Transport and fate of mercury in the environment", Handbook of Environmental Materials Management, pp.1-20, Springer, 10 January 2018.
9 J. M. Pacyna, J. Munthe, "Summary of research projects on mercury funded by European Commission DG Research", Workshop on Mercury: needs for further international environmental agreements, Brussels, 29-30, March 2004.
10 Control of mercury emissions from coal fired electric utility boilers: an update, Air pollution prevention & control division, U.S. Environmental Protection Agency; 2005.
11 J. Y. Park, Study of Mercury Emissions from the Exhaust of Coal-fired Power Plants and Automobiles, Master's thesis, Yonsei Uinvesity, Korea, June 2006.
12 Z. Tan, L. Sun, J. Xiang, H. Zeng, J. Qiu, "Gas- phase elemental mercury removal by novel carbon- based sorbents", Carbon, Vol.50, pp.362-371, 2012.   DOI
13 Y.-I. Yoon, W.-K. Choi, S.-H. Lee, H.-K. Lee, "Status of Combined SOx, NOx and Mercury Control Technology from the Fule Gas", Prospectives of Industrial Chemistry, Vol.8 No.1, pp.12-25, 2005.
14 E. S. Edgerton, B. E. Hartsell, J. J. Jansen, 'Mercury Speciation in Coal-fired Power Plant Plumes Observed at Three Surface Sites in the Southeastern U.S.', Environ. Sci. Technol., Vol.40, No.15, pp.4563-4570, 2006. DOI: https://doi.org/10.1021/es0515607   DOI
15 M. Attari, S. S. Bukhari, H. Kazemian, S. Rohani, "A low-cost adsorbent from coal fly ash for mercury removal from industrial wastewater", Journal of Environmental Chemical Engineering, Vol.5, pp.391-399, 2017.   DOI