Proceedings of Conference on Coal Science
Online ISSN : 2423-8309
Print ISSN : 2423-8295
ISSN-L : 2423-8295
[volume title in Japanese]
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1-03 Chemical Forms of Mercury Contained in Fly Ash Produced from Coal-Fired Power Plant
Dorcas Linda Ernesto UACIQUETEKosuke SAKUSABETakahiro KATOHirokazu OKAWAKatsuyasu SUGAWARA
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Pages 6-7


An analysis was performed by combining the TPD and CVAAS to identify and quantify the mercury forms in the fly ash produced from a coal-fired power plant. The TPD curve of the model sample for each mercury compound showed a unique peak temperature, and the chemical form of mercury was identified by comparing the peak temperature with that of the fly ash. A linear combination of the TPD curve of each model sample was curve-fitted to that of the fly ash. The calculated results revealed that 45% of total mercury is C-Hg in the fly ash followed by HgO, HgS, HgSO4・2HgO, HgSO4 with around 14%.

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