Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Investigation of a Mercury Speciation Technique for Flue Gas Desulfurization Materials
Most of the synthetic gypsum generated from wet flue gas desulfurization (FGD) scrubbers is currently being used for wallboard production. Because oxidized mercury is readily captured by the wet FGD scrubber, and coal-fired power plants equipped with wet scrubbers desire to benefit from the partial mercury control that these systems provide, some mercury is likely to be bound in with the FGD gypsum and wallboard. In this study, the feasibility of identifying mercury species in the FGD gypsum and wallboard samples was investigated using a large sample size thermal desorption method. Potential candidates of pure mercury standards including mercuric chloride (HgCl2), mercurous chloride (Hg2Cl2), mercury oxide (HgO), mercury sulfide (HgS), and mercuric sulfate (HgSO4) were analyzed to compare their results with those obtained from FGD gypsum and dry wallboard samples. Although any of the thermal evolutionary curves obtained from these pure mercury standards did not exactly match with those of the FGD gypsum and wallboard samples, it was identified that Hg2Cl2 and HgCl2 could be candidates. An additional chlorine analysis from the gypsum and wallboard samples indicated that the chlorine concentrations were approximately 2 orders of magnitude higher than the mercury concentrations, suggesting possible chlorine association with mercury.
Investigation of a Mercury Speciation Technique for Flue Gas Desulfurization Materials
Most of the synthetic gypsum generated from wet flue gas desulfurization (FGD) scrubbers is currently being used for wallboard production. Because oxidized mercury is readily captured by the wet FGD scrubber, and coal-fired power plants equipped with wet scrubbers desire to benefit from the partial mercury control that these systems provide, some mercury is likely to be bound in with the FGD gypsum and wallboard. In this study, the feasibility of identifying mercury species in the FGD gypsum and wallboard samples was investigated using a large sample size thermal desorption method. Potential candidates of pure mercury standards including mercuric chloride (HgCl2), mercurous chloride (Hg2Cl2), mercury oxide (HgO), mercury sulfide (HgS), and mercuric sulfate (HgSO4) were analyzed to compare their results with those obtained from FGD gypsum and dry wallboard samples. Although any of the thermal evolutionary curves obtained from these pure mercury standards did not exactly match with those of the FGD gypsum and wallboard samples, it was identified that Hg2Cl2 and HgCl2 could be candidates. An additional chlorine analysis from the gypsum and wallboard samples indicated that the chlorine concentrations were approximately 2 orders of magnitude higher than the mercury concentrations, suggesting possible chlorine association with mercury.
Investigation of a Mercury Speciation Technique for Flue Gas Desulfurization Materials
Lee, Joo-Youp (Autor:in) / Cho, Kyungmin (Autor:in) / Cheng, Lei (Autor:in) / Keener, Tim C. (Autor:in) / Jegadeesan, Gautham (Autor:in) / Al-Abed, Souhail R. (Autor:in)
Journal of the Air & Waste Management Association ; 59 ; 972-979
01.08.2009
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
Investigation into the behavior of mercury in wet flue gas desulfurization systems
| TIBKAT | 2022
Investigation into the behavior of mercury in wet flue gas desulfurization systems
| UB Braunschweig | 2022
Mercury Partitioning in Flue Gas Desulfurization Byproduct Liquors and Solids
| British Library Conference Proceedings | 2007
Corrosion Investigation of Ammonia Flue Gas Desulfurization
| British Library Online Contents | 2016
Impact of Fly Ash Composition on Mercury Speciation in Simulated Flue Gas
| Taylor & Francis Verlag | 2009