MERCURY EMISSION CHARACTERISTICS FROM COAL-FIRED POWER
PLANTS BASED ON FIELD TESTS

Yu Lixin Li Chao Han Zhongguo Liu Jianmin Jiang Lixing

doi:10.13205/j.hjgc.201508031

Volume 33 Issue 8

Nov. 2015

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Yu Lixin Li Chao Han Zhongguo Liu Jianmin Jiang Lixing, . MERCURY EMISSION CHARACTERISTICS FROM COAL-FIRED POWERPLANTS BASED ON FIELD TESTS[J]. ENVIRONMENTAL ENGINEERING , 2015, 33(8): 136-139. doi: 10.13205/j.hjgc.201508031

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Yu Lixin Li Chao Han Zhongguo Liu Jianmin Jiang Lixing, . MERCURY EMISSION CHARACTERISTICS FROM COAL-FIRED POWER PLANTS BASED ON FIELD TESTS[J]. ENVIRONMENTAL ENGINEERING , 2015, 33(8): 136-139. doi: 10.13205/j.hjgc.201508031

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MERCURY EMISSION CHARACTERISTICS FROM COAL-FIRED POWER PLANTS BASED ON FIELD TESTS

doi: 10.13205/j.hjgc.201508031

Yu Lixin Li Chao Han Zhongguo Liu Jianmin Jiang Lixing,

Publish Date: 2015-08-22

Abstract

Abstract

Coal，slag，limestone，water in desulfurization process，gypsum，desulfurization wastewater and ash were sampled and tested in order to study mercury emission characteristics from a typical coal-fired power plant． EPA30B and Ontario-Hydro methods were applied to determine the mercury speciation of flue gas in different position． The results indicated that the mercury emission concentration of 300 MW unit met“Emission Standard of Air Pollutants for Thermal Power Plants”( GB 13223—2011) ． The mercury emission in flue gas accounted for a considerable proportion，reaching 89. 50%，and the amount of mercury emission into the atmosphere was about 38. 72 μ g / ( kW·h) ． The flue gas purification system of typical 300MW units was SCR + ESP + WFGD combined process，and the removal efficiency of mercury in flue gas was only 29. 71%，and mercury removal rate was not high without strengthen the mercury removal measures．

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