Emission factors and annual emissions of bulk and trace elements from oil shale fueled power plants

Erkki Häsänen (Corresponding Author), Leena Aunela-Tapola, Vesa Kinnunen, Kari Larjava, Arvo Mehtonen, Tuomo Salmikangas, Jukka Leskelä, Juri Loosaar

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Abstract

Measurements were carried out to investigate the emission factors and annual emissions of bulk and trace elements from two large oil shale fueled power plants in northeastern Estonia. The samples from fuel and different ash fractions were collected at the same time as the SO2, NOx and fly ash concentrations in the stack gases were measured at the power plants. The elemental concentrations of 30 elements in the fuel, bottom ash, ash from super heater and economizer, cyclone and electrostatic precipitator ash, and fly ash were analysed by ICP-AES, ICP-MS or INAA. According to the balance studies, based on analyses of the fuel and different ash fractions, 40–50% of sulphur and selenium, and 25–35% of arsenic, cadmium and thallium are released in the gas phase. Other elements, except for chlorine, bromine and iodine, are retained in the ash fraction by over 90%. The emission factor for SO2 in oil shale fueled power plants is on the same level and the emission factor for NOx one third of that in coal fueled power plants. The fly ash emission factor of oil shale fueled power plants, 1100 mg/MJ, is about 20 times higher than in coal fueled power plants. Due to the large size of these oil shale fueled power plants (electricity output 1390 and 1610 MW) and high fly ash emission factors, the total annual emissions of many elements, both toxic and non-toxic, are very high. For example, the arsenic and lead emissions are 12 and 36 tons per year, respectively, and calcium emissions 36 000 tons/year.

Original languageEnglish
Pages (from-to)1 - 12
Number of pages12
JournalScience of the Total Environment
Volume198
Issue number1
DOIs
Publication statusPublished - 1997
MoE publication typeA1 Journal article-refereed

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Ashes
Oil shale
oil shale
Trace Elements
Trace elements
Coal Ash
power plant
Power plants
trace element
ash
Fly ash
fly ash
Coal
Arsenic
arsenic
Gases
coal
Economizers
Bromine
thallium

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Häsänen, E., Aunela-Tapola, L., Kinnunen, V., Larjava, K., Mehtonen, A., Salmikangas, T., ... Loosaar, J. (1997). Emission factors and annual emissions of bulk and trace elements from oil shale fueled power plants. Science of the Total Environment, 198(1), 1 - 12. https://doi.org/10.1016/S0048-9697(97)05432-6
Häsänen, Erkki ; Aunela-Tapola, Leena ; Kinnunen, Vesa ; Larjava, Kari ; Mehtonen, Arvo ; Salmikangas, Tuomo ; Leskelä, Jukka ; Loosaar, Juri. / Emission factors and annual emissions of bulk and trace elements from oil shale fueled power plants. In: Science of the Total Environment. 1997 ; Vol. 198, No. 1. pp. 1 - 12.
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title = "Emission factors and annual emissions of bulk and trace elements from oil shale fueled power plants",
abstract = "Measurements were carried out to investigate the emission factors and annual emissions of bulk and trace elements from two large oil shale fueled power plants in northeastern Estonia. The samples from fuel and different ash fractions were collected at the same time as the SO2, NOx and fly ash concentrations in the stack gases were measured at the power plants. The elemental concentrations of 30 elements in the fuel, bottom ash, ash from super heater and economizer, cyclone and electrostatic precipitator ash, and fly ash were analysed by ICP-AES, ICP-MS or INAA. According to the balance studies, based on analyses of the fuel and different ash fractions, 40–50{\%} of sulphur and selenium, and 25–35{\%} of arsenic, cadmium and thallium are released in the gas phase. Other elements, except for chlorine, bromine and iodine, are retained in the ash fraction by over 90{\%}. The emission factor for SO2 in oil shale fueled power plants is on the same level and the emission factor for NOx one third of that in coal fueled power plants. The fly ash emission factor of oil shale fueled power plants, 1100 mg/MJ, is about 20 times higher than in coal fueled power plants. Due to the large size of these oil shale fueled power plants (electricity output 1390 and 1610 MW) and high fly ash emission factors, the total annual emissions of many elements, both toxic and non-toxic, are very high. For example, the arsenic and lead emissions are 12 and 36 tons per year, respectively, and calcium emissions 36 000 tons/year.",
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Häsänen, E, Aunela-Tapola, L, Kinnunen, V, Larjava, K, Mehtonen, A, Salmikangas, T, Leskelä, J & Loosaar, J 1997, 'Emission factors and annual emissions of bulk and trace elements from oil shale fueled power plants', Science of the Total Environment, vol. 198, no. 1, pp. 1 - 12. https://doi.org/10.1016/S0048-9697(97)05432-6

Emission factors and annual emissions of bulk and trace elements from oil shale fueled power plants. / Häsänen, Erkki (Corresponding Author); Aunela-Tapola, Leena; Kinnunen, Vesa; Larjava, Kari; Mehtonen, Arvo; Salmikangas, Tuomo; Leskelä, Jukka; Loosaar, Juri.

In: Science of the Total Environment, Vol. 198, No. 1, 1997, p. 1 - 12.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Emission factors and annual emissions of bulk and trace elements from oil shale fueled power plants

AU - Häsänen, Erkki

AU - Aunela-Tapola, Leena

AU - Kinnunen, Vesa

AU - Larjava, Kari

AU - Mehtonen, Arvo

AU - Salmikangas, Tuomo

AU - Leskelä, Jukka

AU - Loosaar, Juri

PY - 1997

Y1 - 1997

N2 - Measurements were carried out to investigate the emission factors and annual emissions of bulk and trace elements from two large oil shale fueled power plants in northeastern Estonia. The samples from fuel and different ash fractions were collected at the same time as the SO2, NOx and fly ash concentrations in the stack gases were measured at the power plants. The elemental concentrations of 30 elements in the fuel, bottom ash, ash from super heater and economizer, cyclone and electrostatic precipitator ash, and fly ash were analysed by ICP-AES, ICP-MS or INAA. According to the balance studies, based on analyses of the fuel and different ash fractions, 40–50% of sulphur and selenium, and 25–35% of arsenic, cadmium and thallium are released in the gas phase. Other elements, except for chlorine, bromine and iodine, are retained in the ash fraction by over 90%. The emission factor for SO2 in oil shale fueled power plants is on the same level and the emission factor for NOx one third of that in coal fueled power plants. The fly ash emission factor of oil shale fueled power plants, 1100 mg/MJ, is about 20 times higher than in coal fueled power plants. Due to the large size of these oil shale fueled power plants (electricity output 1390 and 1610 MW) and high fly ash emission factors, the total annual emissions of many elements, both toxic and non-toxic, are very high. For example, the arsenic and lead emissions are 12 and 36 tons per year, respectively, and calcium emissions 36 000 tons/year.

AB - Measurements were carried out to investigate the emission factors and annual emissions of bulk and trace elements from two large oil shale fueled power plants in northeastern Estonia. The samples from fuel and different ash fractions were collected at the same time as the SO2, NOx and fly ash concentrations in the stack gases were measured at the power plants. The elemental concentrations of 30 elements in the fuel, bottom ash, ash from super heater and economizer, cyclone and electrostatic precipitator ash, and fly ash were analysed by ICP-AES, ICP-MS or INAA. According to the balance studies, based on analyses of the fuel and different ash fractions, 40–50% of sulphur and selenium, and 25–35% of arsenic, cadmium and thallium are released in the gas phase. Other elements, except for chlorine, bromine and iodine, are retained in the ash fraction by over 90%. The emission factor for SO2 in oil shale fueled power plants is on the same level and the emission factor for NOx one third of that in coal fueled power plants. The fly ash emission factor of oil shale fueled power plants, 1100 mg/MJ, is about 20 times higher than in coal fueled power plants. Due to the large size of these oil shale fueled power plants (electricity output 1390 and 1610 MW) and high fly ash emission factors, the total annual emissions of many elements, both toxic and non-toxic, are very high. For example, the arsenic and lead emissions are 12 and 36 tons per year, respectively, and calcium emissions 36 000 tons/year.

U2 - 10.1016/S0048-9697(97)05432-6

DO - 10.1016/S0048-9697(97)05432-6

M3 - Article

VL - 198

SP - 1

EP - 12

JO - Science of the Total Environment

JF - Science of the Total Environment

SN - 0048-9697

IS - 1

ER -