Selective Catalytic Reduction (SCR)
Emissions from power stations or engines typically contain NOx. NOx is a generic term for mono-nitrogen oxides NO and NO2 (nitric oxide and nitrogen dioxide). They are produced from the reaction of nitrogen and oxygen gases in the air during combustion, especially at high temperatures.
In the lower atmosphere, NOx combines with reactive organic gases in the presence of sunlight to form ground-level ozone, which is the primary component of urban smog. In addition, nitric oxide and nitrogen dioxide are components of acid rain, which is a significant problem in the northern hemisphere.
Over the past 20 years, ECI has led the way in Selective Catalytic Reduction (SCR) NOx Abatement Systems in Australia and around the world.
Selective catalytic reduction is a post-combustion control technology capable of reducing NOx emissions by 80-95+ percent. The ECI Selective Catalytic Reduction system selectively reduces NOx by combining liquid Urea/Ammonia (NH3) and Oxygen (02), with NOx in the exhaust gas, in the presence of a catalyst to form molecular nitrogen (N2) and water (H20).
The addition of an Oxidation Catalyst onto an SCR NOx Abatement System will further reduce levels of CO (Carbon Monoxide), hydrocarbon and VOC (Volatile Organic Compounds) emissions by up to 80-90 percent.
The Selective Catalytic Reduction offers:
- Long catalyst life.
- System design flexibility for marine, rail and plant applications.
- Broad temperature range from 285ºC to 520ºC.
- Compatible with various fuel types, which includes contaminated fuels with up to 3.5% Sulphur.
- Process guarantees.
- Ongoing maintenance and emissions testing services.
- Urea supply.
- Remote access to PLC controls.
- Technical training & engineering manuals.
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