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Title: Influence of a Modification of the Petcoke/Coal Ratio on the Leachability of Fly Ash and Slag Produced from a Large PCC Power Plant

Abstract

Co-firing of coal with inexpensive secondary fuels such as petroleum coke is expected to increase in the near future in the EU given that it may provide certain economic and environmental benefits with respect to coal combustion. However, changes in the feed fuel composition of power plants may modify the bulk content and the speciation of a number of elements in fly ash and slag. Consequently, leachability of these byproducts also can be modified. This study is focused on identifying the changes in the environmental quality of co-fired fly ash and slag induced by a modification of the petcoke/coal ratio. Petcoke was found to increase the leachable content of V and Mo and to enhance the mobility of S and As. However, with the exception of these elements, the addition of this secondary fuel did not drastically modify the bulk composition or the overall leachability of the resulting fly ash and slag.

Authors:
; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL) National Synchrotron Light Source
Sponsoring Org.:
Doe - Office Of Science
OSTI Identifier:
959797
Report Number(s):
BNL-82783-2009-JA
Journal ID: ISSN 0013-936X; ESTHAG; TRN: US201016%%941
DOE Contract Number:  
DE-AC02-98CH10886
Resource Type:
Journal Article
Resource Relation:
Journal Name: Environmental Science and Technology; Journal Volume: 41
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 02 PETROLEUM; COAL; COKE; COMBUSTION; ECONOMICS; ENVIRONMENTAL QUALITY; FLY ASH; MODIFICATIONS; PETROLEUM PRODUCTS; POWER PLANTS; SLAGS; national synchrotron light source

Citation Formats

Izquierdo,M., Font, O., Moreno, N., Querol, X., Huggins, F., Alvarez, E., Diez, S., Otero, P., Ballesteros, J., and Gimenez, A. Influence of a Modification of the Petcoke/Coal Ratio on the Leachability of Fly Ash and Slag Produced from a Large PCC Power Plant. United States: N. p., 2007. Web. doi:10.1021/es063002d.
Izquierdo,M., Font, O., Moreno, N., Querol, X., Huggins, F., Alvarez, E., Diez, S., Otero, P., Ballesteros, J., & Gimenez, A. Influence of a Modification of the Petcoke/Coal Ratio on the Leachability of Fly Ash and Slag Produced from a Large PCC Power Plant. United States. doi:10.1021/es063002d.
Izquierdo,M., Font, O., Moreno, N., Querol, X., Huggins, F., Alvarez, E., Diez, S., Otero, P., Ballesteros, J., and Gimenez, A. Mon . "Influence of a Modification of the Petcoke/Coal Ratio on the Leachability of Fly Ash and Slag Produced from a Large PCC Power Plant". United States. doi:10.1021/es063002d.
@article{osti_959797,
title = {Influence of a Modification of the Petcoke/Coal Ratio on the Leachability of Fly Ash and Slag Produced from a Large PCC Power Plant},
author = {Izquierdo,M. and Font, O. and Moreno, N. and Querol, X. and Huggins, F. and Alvarez, E. and Diez, S. and Otero, P. and Ballesteros, J. and Gimenez, A.},
abstractNote = {Co-firing of coal with inexpensive secondary fuels such as petroleum coke is expected to increase in the near future in the EU given that it may provide certain economic and environmental benefits with respect to coal combustion. However, changes in the feed fuel composition of power plants may modify the bulk content and the speciation of a number of elements in fly ash and slag. Consequently, leachability of these byproducts also can be modified. This study is focused on identifying the changes in the environmental quality of co-fired fly ash and slag induced by a modification of the petcoke/coal ratio. Petcoke was found to increase the leachable content of V and Mo and to enhance the mobility of S and As. However, with the exception of these elements, the addition of this secondary fuel did not drastically modify the bulk composition or the overall leachability of the resulting fly ash and slag.},
doi = {10.1021/es063002d},
journal = {Environmental Science and Technology},
number = ,
volume = 41,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}