SCR DeNOx - cleaning power industry off-gases
Topsoe’s SCR DeNOx catalyst removes nitrogen oxides - NOx - from exhaust and flue gases. The catalyst converts NOx into water and nitrogen. 80% of the air we breathe consists of nitrogen.
Where is the SCR DeNOx technology used?
Any combustion process generates NOx – coal burning in power stations, waste incineration and petrol or diesel combustion in vehicles. By employing Topsoe’s SCR DeNOx catalyst, it is possible to remove NOx from exhaust and flue gases.
DeNOx and the environment
NOx causes acid rain as well as formation of smog and are harmful to health and buildings. To meet targets for CO2 and cleaner energy, Danish legislation requires that some of the fuel used at existing coal-fired power stations must be replaced by biomass such as straw and wood. Topsoe’s DeNOx catalyst is constructed to operate in such conditions with a very high efficiency.
Case: SCR DeNOx and the Avedøre Power Station
In Denmark as well as in the rest of Europe and the USA, increasingly stringent requirements are being imposed for co-firing with CO2-neutral fuels. Topsoe has SCR DeNOx catalysts installed at the Danish Avedøre Power Station where wood pellets have been used for co-firing since 2002. Topsoe’s catalyst has proved to be particularly suited for power stations burning biomass.