EAP - Oil Shale publications

PUBLISHED
SINCE 1984

Oil Shale

ISSN 1736-7492 (Electronic)
ISSN 0208-189X (Print)

Open Access Journal

CiteScore: 2.6

Impact Factor (2022): 1.9

FIRING ESTONIAN OIL SHALE OF HIGHER QUALITY IN CFB BOILERS – ENVIRONMENTAL AND ECONOMIC IMPACT; pp. 113–126

PDF | doi: 10.3176/oil.2011.1S.04

Authors

K. PLAMUS, S. SOOSAAR, Arvo OTS, Dmitri Neshumayev

Abstract

In this article environmental and economic impact of firing oil shale of higher quality is analyzed.
   Fuel consumption, emission indicators (CO₂, SO₂, CO, NO_x, N₂O, particulates) and ash mass flow of a circulating fluidized bed (CFB) boiler firing oil shale of lower heating value (LHV) of 8.2–11.5 MJ/kg are presented. The investigation is based on full-scale firing tests.
   Based on test results the impact of transportation and operational costs of oil shale and ash handling on electricity price is analyzed. The pollution charges and CO₂ emission allowances are considered when analyzing the environmental impact on costs
   Firing upgraded oil shale (10.5 MJ/kg) leads to substantial reduction of environmental impact and enables to save costs of electricity production. Reduction of CO₂ emission by 7%, ash mass flow by 25% and fuel consumption by 22% when firing upgraded oil shale instead of conventional one (8.4 MJ/kg) enables to save up to 3 EUR/MWh_e, achieving the major savings from environmental costs, especially from reduced need for purchasing CO₂ emission allowances.

References

1. Ots, A. Oil Shale Fuel Combustion. – Tallinn, 2006. 833 p.

2. Arro, H., Prikk, A., Pihu, T. Calculation of qualitative and quantitative composition of Estonian oil shale and its combustion products. Part 1. Calculation on the basis of heating value // Fuel. 2003. Vol. 82, No. 18. P. 2179–2195.

3. Hotta, A., Parkkonen, R., Hiltunen, M., Arro, H., Loosaar, J., Parve, T., Pihu, T., Prikk, A., Tiikma, T. Experience of Estonian oil shale combustion based on CFB technology at Narva Power Plants // Oil Shale. 2005. Vol. 22, No. 4S. P. 381–397.

4. EVS-EN 12952-15:2003. Water-tube boilers and auxiliary installations – Part 15: Acceptance tests.

5. Arro, H., Loosaar, J., Ots, A., Pihu, T., Prikk, A., Rusheljuk, P., Hiltunen, M., Hotta, A., Parkkonen, R., Peltola, K. Firing Estonian oil shale in CFB boilers // 19th FBC Conference. May 21–May 24. 2006. Proceedings Part II. Vienna, Austria.

6. Arro, H., Prikk, A., Pihu, T. Calculation of CO₂ emission from CFB boilers of oil shale power plants // Oil Shale. 2006. Vol. 23, No. 4. P. 356–365.

7. Directive 2003/87/EC of the European Parliament and of the Council of 13 October 2003 establishing a scheme for greenhouse gas emission allowance trading within the Community // Official Journal L 275, 25.10.2003. P. 32–46.

8. Directive 2009/29/EC of the European Parliament and of the Council of 23 April 2009 amending Directive 2003/87/EC so as to improve and extend the greenhouse gas emission allowance trading scheme of the Community // Official Journal L 140, 05.06.2009. P. 63–87.

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