Utilization of Estonian Oil Shale at Power Plants

  • Arvo Ots

Abstract

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.

Keywords

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.

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Copyright information

© Springer Science+Business Media New York 1996

Authors and Affiliations

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

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