Physico-chemical characteristics of European pulverized coal combustion fly ashes

TY - JOUR

T1 - Physico-chemical characteristics of European pulverized coal combustion fly ashes

AU - Moreno, Natalia

AU - Querol, Xavier

AU - Andrés, J. M.

AU - Stanton, Kenneth T.

AU - Towler, Mark

AU - Nugteren, Henk

AU - Janssen-Jurkovicová, Maria

AU - Jones, R.

PY - 2005/8

Y1 - 2005/8

N2 - Fly ashes sourced from European pulverised coal burning power plants (from Spain, The Netherlands, Italy and Greece) were characterised in terms of their chemical composition, mineralogy and physical properties. The amount and composition of the glass present in the ashes were also determined. The materials analysed have very different compositions and were selected with a view to determining their suitability for different applications and for further studies on applications. The results were compared to the literature to determine their similarities to UK coal fly ashes. Chemical analysis has enabled the categorisation of the ashes based on their oxide contents. Devitrification of the glass phase has been effected using suitable heat treatments and crystal phases formed are used as an indicator of glass reactivity. Based on leaching tests, certain ashes were identified as having limitations for some further uses due to the relatively high levels of leachable trace elements. A wide range of physical properties such as density were observed and these are related to factors such as mineralogical content and particle morphology.

AB - Fly ashes sourced from European pulverised coal burning power plants (from Spain, The Netherlands, Italy and Greece) were characterised in terms of their chemical composition, mineralogy and physical properties. The amount and composition of the glass present in the ashes were also determined. The materials analysed have very different compositions and were selected with a view to determining their suitability for different applications and for further studies on applications. The results were compared to the literature to determine their similarities to UK coal fly ashes. Chemical analysis has enabled the categorisation of the ashes based on their oxide contents. Devitrification of the glass phase has been effected using suitable heat treatments and crystal phases formed are used as an indicator of glass reactivity. Based on leaching tests, certain ashes were identified as having limitations for some further uses due to the relatively high levels of leachable trace elements. A wide range of physical properties such as density were observed and these are related to factors such as mineralogical content and particle morphology.

KW - Fly ash

KW - Characterisation

KW - Mineralogy

KW - Trace elements

KW - Grain size

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-18544386993&origin=inward&txGid=f908a9861ce79f2a9d5eb6ac9294067a

U2 - 10.1016/j.fuel.2004.06.038

DO - 10.1016/j.fuel.2004.06.038

M3 - Article

SN - 0016-2361

VL - 84

SP - 1351

EP - 1363

JO - Fuel

JF - Fuel

IS - 11

T2 - 2003 International Ash Utilization Symposium

Y2 - 20 October 2003 through 22 October 2003

ER -