A study of trace element behavior in two modern coal-fired power plants I

Development and optimization of trace element analysis using reference materials

Eliisa Hatanpää, Kaarina Kajander, Timo Laitinen (Corresponding Author), Sulo Piepponen, Hannu Revitzer

Research output: Contribution to journalArticleScientificpeer-review

27 Citations (Scopus)

Abstract

Analytical methods for solid samples taken from a coal-fired power plant were developed and optimized in order to facilitate a comprehensive series of measurement campaigns aimed at trace metal balance determinations in various coal-fired power plants. Commercial reference materials with certified trace element contents were used as model samples. A procedure which had been previously developed for the analysis of fly ash was found to give good recoveries in the case of both coal fly ash and coal in a two-laboratory intercomparison. This procedure was based on microwave digestion in a mixture of HNO3 and HF in closed vessels. The digestion of samples of dolomitized limestone and gypsum rock was found to be successful under similar conditions but using a mixture of HNO3, HCl and HF, although the precision of the determination was not as good as in the case of coal and coal fly ash. The digestion procedures developed and tested in this work can be recommended as simple and uniform methods in the analysis of power plant samples for a number of trace elements, exclusive Hg.

Original languageEnglish
Pages (from-to)205 - 217
Number of pages13
JournalFuel Processing Technology
Volume51
Issue number3
DOIs
Publication statusPublished - 1997
MoE publication typeA1 Journal article-refereed

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Coal
Trace Elements
Trace elements
Power plants
Coal Ash
Fly ash
Calcium Sulfate
Calcium Carbonate
Gypsum
Limestone
Rocks
Microwaves
Recovery

Cite this

Hatanpää, Eliisa ; Kajander, Kaarina ; Laitinen, Timo ; Piepponen, Sulo ; Revitzer, Hannu. / A study of trace element behavior in two modern coal-fired power plants I : Development and optimization of trace element analysis using reference materials. In: Fuel Processing Technology. 1997 ; Vol. 51, No. 3. pp. 205 - 217.
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abstract = "Analytical methods for solid samples taken from a coal-fired power plant were developed and optimized in order to facilitate a comprehensive series of measurement campaigns aimed at trace metal balance determinations in various coal-fired power plants. Commercial reference materials with certified trace element contents were used as model samples. A procedure which had been previously developed for the analysis of fly ash was found to give good recoveries in the case of both coal fly ash and coal in a two-laboratory intercomparison. This procedure was based on microwave digestion in a mixture of HNO3 and HF in closed vessels. The digestion of samples of dolomitized limestone and gypsum rock was found to be successful under similar conditions but using a mixture of HNO3, HCl and HF, although the precision of the determination was not as good as in the case of coal and coal fly ash. The digestion procedures developed and tested in this work can be recommended as simple and uniform methods in the analysis of power plant samples for a number of trace elements, exclusive Hg.",
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A study of trace element behavior in two modern coal-fired power plants I : Development and optimization of trace element analysis using reference materials. / Hatanpää, Eliisa; Kajander, Kaarina; Laitinen, Timo (Corresponding Author); Piepponen, Sulo; Revitzer, Hannu.

In: Fuel Processing Technology, Vol. 51, No. 3, 1997, p. 205 - 217.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Piepponen, Sulo

AU - Revitzer, Hannu

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