3. Oxy-combustion power plants
3.1 Oxygen production and oxy-combustion boilers
The basic concept of oxy-combustion is simple: replace air with pure oxygen (with a purity of at least 95%) in an air separation unit (ASU) to burn a fossil fuel either in a boiler or in a gas turbine. The combustion products then form a mixture of CO2 and water vapor, from which the CO2 can easily be extracted by condensation of the water.
To control the adiabatic flame temperature, which can rise from 1,900°C with air to 2,800°C with 95% O2, an inert gas is required, and to do this the combustion products, namely water vapor, CO2 itself and excess O2, to the O2 supply are recycled in a boiler.
In the oxy-combustion option,...
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Oxy-combustion power plants
Cost analysis
Bibliography
Bibliography
- (1) - METZ (B.), DAVIDSON (O.), DE CONINCK (H.C.), LOOS (M.), MEYER (L.A.) - IPCC 2005 (Intergovernmental Panel on Climate Change). - Special Report on CO2 capture and storage, prepared by Working Group 3, Cambridge University Press, UK and New York NY, États-Unis (2005) http://www.ipcc.ch ...
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