2024-03-29T14:45:43Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/110112018-11-15T12:08:17Zcom_10261_84com_10261_5col_10261_337
Mercury and selenium retention in fly ashes: Influence of unburned particle content
López Antón, María Antonia
Díaz Somoano, Mercedes
Abad Valle, Patricia
Martínez Tarazona, María Rosa
Mercury
Selenium
Fly ash
7 pages, 6 figures, 2 tables.-- Printed version published Sep 2007.-- Issue title: "The 6th European Conference on Coal Research and its Applications".
Mercury and selenium are present as trace elements in coal and may be emitted to the environment in gas phase during coal conversion processes or be partially retained on the fly ashes. The present work explores the possibility that selenium may contribute to mercury capture in fly ashes in two different situations: firstly the power station itself, in order to evaluate the influence of typical working conditions, and secondly in a fixed bed of fly ashes enriched with Se, in order to study the capture of mercury in more severe conditions. It was found that the presence of selenium in fly ashes may improve their capacity to capture mercury. However, in the four fly ashes of different origin studied, selenium is not the most important component for mercury retention. In fact, the presence of selenium in fly ash samples enriched in unburned carbon does not have any significant effect on mercury retention.
The results of this work were obtained as part of the projects PPQ2001-2359-C02-02 and CTM2004-04252.CO2-02/TECNO.
Peer reviewed
2009-02-26T09:02:07Z
2009-02-26T09:02:07Z
2007-04-16
artículo
http://purl.org/coar/resource_type/c_6501
Fuel 86(14): 2064-6070 (2007)
0016-2361
http://hdl.handle.net/10261/11011
10.1016/j.fuel.2007.03.031
en
http://dx.doi.org/10.1016/j.fuel.2007.03.031
open
22195 bytes
application/pdf
Elsevier