Influence of the co-firing on the leaching of trace pollutants from coal fly ash

Izquierdo, Maria; Moreno, Natalia; Font, Oriol; Querol, Xavier; Alvarez, Esther; Antenucci, Diano; Nugteren, Henk; Luna, Yolanda; Fernandez-Pereira, Constantino

Abstract

The (co)-firing of low-cost alternative fuels is expected to increase in the forthcoming years in the EU because of the economic and environmental benefits provided by this technology. This study deals with the impact of the different coal/waste fuel ratio of the feed blend on the mineralogy, the chemical composition and especially on the leaching properties of fly ash. Different blends of coal, petroleum coke, sewage sludge, wood pellets, coal tailings and other minor biomass fuels were tested in PCC (pulverised coal combustion) and FBC (fluidized bed combustion) power plants. The co-firing of the studied blends did not drastically modify the mineralogy, bulk composition or the overall leaching of the fly ash obtained. This suggests that the co-firing process using the alternative fuels studied does not entail significant limitations in the re-use or management strategies of fly ash. (c) 2007 Elsevier Ltd. All rights reserved.

Más información

Título según WOS: ID WOS:000256008600024 Not found in local WOS DB
Título de la Revista: FUEL
Volumen: 87
Número: 10-11
Editorial: ELSEVIER SCI LTD
Fecha de publicación: 2008
Página de inicio: 1958
Página final: 1966
DOI:

10.1016/j.fuel.2007.11.002

Notas: ISI