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Wybrane zagadnienia materiałowe związane z rozwojem czystej energetyki węglowej

Słowiński G.

Systems : journal of transdisciplinary systems science

2008

Vol. 13, spec. iss. 2/2

130--135

This paper presents cases, when the development of clean coal power depends on new materials. Current state-of-the-art, existing constraints and possible directions of further development are presented. Modern power plant should have: a) high efficiency, b) the possibility of simple and cheap CO2 capture. Efficiency increase can be achieved in a few ways as: further increase of thermodynamic parameters of steam cycle, introduction of gas turbine on gasified coal, reduction of loses connected with unavoidable temperature shifts through high temperature heat exchanger application or Solid Oxide Fuel Cell introduction. Currently, CO2 is captured with amine solutions from casual flue gas containing ~80% of nitrogen. There are ideas to redesign the power plant to avoid mixing of combustion products with atmospheric nitrogen and to use gas separating membranes and chemical loops instead of amines.