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DONG Energys Power Stations Reduce Emission of Pollutant Gases
Nitrogen oxides – or NOx – are pollutant gases produced by combustion at the power stations.
The 50% reduction is the result of the power stations supplying a smaller percentage of power and heat than they used to do and of optimisation and improvement of the operation of the plants that clean the flue gas.
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Great expectations to new catalyst replacement strategy
For example, Studstrup Power Station has achieved very low NOx emissions through optimisation of operation and maintenance of deNOx plants. After installation of a new catalyst layer in 2011, Studstrup Power Station’s specific NOx emissions have been approximately 9mg NOx/MJ, which corresponds to approximately one third of the level at similar central power stations.
Optimised combustion resulted in fuel savings
Results are also achieved at power stations without deNOx plants. For example, Skærbæk Power Station has reduced its emissions by approximately 20% by optimising combustion. Similar activities are currently ongoing at Asnæs and Herning power stations.
Source: DONG Energy
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