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Título: | Retention of arsenic and selenium compounds present in coal combustion and gasification flue gases using activated carbons |
Autor: | López Antón, María Antonia CSIC ORCID ; Díaz Somoano, Mercedes CSIC ORCID ; García Fierro, José Luis CSIC ORCID; Martínez Tarazona, María Rosa CSIC ORCID | Palabras clave: | Activated carbon Arsenic Coal combustion Coal gasification Selenium |
Fecha de publicación: | 9-may-2007 | Editor: | Elsevier | Citación: | Fuel Processing Technology 88(8): 799-805 (2007) | Resumen: | The emission of potentially toxic compounds of arsenic and selenium present in flue gases from coal combustion and gasification processes has led to the need for gas cleaning systems capable of reducing their content. This work is focused on the capture of these elements in activated carbons which have proven to have good retention capacities for mercury compounds in gas phase. Two commercial activated carbons (Norit RBHG3 and Norit RB3) and a carbon prepared via activation of a pyrolysed coal (CA) were tested in simulated coal combustion and gasification atmospheres in a laboratory scale reactor. Arsenic and selenium compounds were retained to different extents on these carbons, retention efficiency depending mainly on the speciation of the element, which in turn depends on the gas atmosphere. Arsenic retention was similar in both combustion and gasification atmospheres unlike selenium retention. Moreover the retention of arsenic was lower than that of selenium. | Descripción: | 7 pages, 7 figures, 6 tables.-- Printed version published Aug 2007. | Versión del editor: | http://dx.doi.org/10.1016/j.fuproc.2007.03.005 | URI: | http://hdl.handle.net/10261/11221 | DOI: | 10.1016/j.fuproc.2007.03.005 | ISSN: | 0378-3820 |
Aparece en las colecciones: | (ICP) Artículos (INCAR) Artículos |
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Retention_arsenic_Lopez-Anton.pdf | 125,9 kB | Adobe PDF | Visualizar/Abrir |
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