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Título

The influence of carbon particle type in fly ashes on mercury adsorption

Autor López Antón, María Antonia ; Abad Valle, Patricia ; Díaz Somoano, Mercedes ; Suárez Ruiz, Isabel ; Martínez Tarazona, María Rosa
Palabras clave Mercury
Fly ash
Unburned carbon
Fecha de publicación jul-2009
EditorElsevier
Citación Fuel 88(7): 1194-1200 (2009)
ResumenRecent research has shown that certain fly ash materials produced in coal combustion for power generation have an affinity for the mercury compounds present in flue gases. However, the exact nature of Hg–fly ash interactions is still unknown and the different variables that influence mercury adsorption need to be identified. In this work the microscopic components of fly ashes derived from the combustion of different types of feed blends of different coal rank and mercury adsorption were investigated. The aim of this research was to establish relationships between Hg retention and the type of unburned carbons present in various fly ashes. The fly ashes and fly ash fractions studied were used as sorbent beds for high mercury concentrations, conditions in which mercury retention is highly favored. From the results obtained it was confirmed that the role of the unburned carbon components in mercury capture may depend, among other factors, on the type of unburned carbon. Fly ashes capture different species of mercury depending on their nature and the type of anisotropic particles.
Versión del editorhttp://dx.doi.org/10.1016/j.fuel.2007.07.029
URI http://hdl.handle.net/10261/108532
DOI10.1016/j.fuel.2007.07.029
ISSN0016-2361
E-ISSN1873-7153
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