Utilization of Estonian Oil Shale at Power Plants

  • Arvo Ots


Estonian oil shale belongs to the carbonate class and is characterized as a solid fuel with very high mineral matter content (60–70% in dry mass), moderate moisture content (9–12%) and low heating value (LHV 8–10 MJ/kg).

Estonian oil shale deposits lie in layers interlacing mineral stratas. The main constituent in mineral stratas is limestone. Organic matter is joined with sandy-clay minerals in shale layers.

Estonian oil shale at power plants with total capacity of 3060 MWe is utilized in pulverized form. Oil shale utilization as fuel, with high calcium oxide and alkali metal content, at power plants is connected with intensive fouling, high temperature corrosion and wear of steam boiler’s heat transfer surfaces.

Utilization of Estonian oil shale is also associated with ash residue use in national economy and as absorbent for flue gas desulphurization system.


Calcium Oxide Heat Transfer Surface High Temperature Corrosion Clinker Mineral Free Calcium Oxide 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Ots, A (1992). “Formation of Air-Polluting Compounds while Burning Oil Shale”: Oil Shale,Vol. 9, N°1, 63–75.Google Scholar
  2. Ots, A (1994). The Influence of Cleaning on Corrosive-Erosive Wear of Steam Boiler Heating Surfaces Tubes, The Impact of Ash Deposition on Coal Fired Plants“: Proceedings of the Engineering Foundation Conference,Taylor & Francis, 759–766.Google Scholar
  3. Öpik, I (1961). The Influence of Oil Shale Mineral Matter on the Conditions of Boiler Operation: Estonian State Publishing House, Tallinn, p. 249 (in Russian).Google Scholar
  4. Ots, A (1977). The Processes in Steam Boilers in Burning Oil Shale and KanskAchinsk Basin Coals: Energia, Moscow, p. 312 (in Russian).Google Scholar
  5. Ots, A, Arro, H (1980). The Mechanism of Fouling Steam Generators Heating Surfaces under the Combustion Products of Solid Fuels. Fouling and Corrosion in Steam Generators: Beograd, 29–41.Google Scholar
  6. Loosaar, J; Jegorov, D (1985).“Nitrogen Oxides Formation while Burning Pulverized Estonian Oil Shale in the Experimental Device”: Trans. of Tallinn Technical University, N°600, 33–39 (in Russian). Google Scholar
  7. Kikas, V (1988).“Mineral Matter of Kukersite Oil-Shale and Its Utilization”: Oil ShaleVol. 5, N“1, 15–28 (in Russian). Google Scholar
  8. Öpik, 1 (1990). “Ash Utilization After Combustion and Thermal Processing of Low-Grade Fuels”: VTT Symposium Low Grade Fuels,Vol. 2, 117–128.Google Scholar

Copyright information

© Springer Science+Business Media New York 1996

Authors and Affiliations

  • Arvo Ots
    • 1
  1. 1.Thermal Engineering DepartmentTallin Technical UniversityTallinnEstonia

Personalised recommendations