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SCR catalytic converters
SCR catalytic converters (selective catalytic reaction) are used in lean-burn engines, gas turbines and special applications in industry. Reduction operation requires the injection of urea as a reducing agent.
In addition to the reduction of NOx emissions, the oxidation of carbon monoxide and hydrocarbons (formaldehyde) is still necessary in accordance with legal requirements.
SCR systems are used for this purpose, in which SCR catalysts are used in the first stage and special oxidation catalysts in a downstream stage. The special oxidation catalysts also ensure that excess urea is oxidized (to be locked) and are therefore also called barrier catalysts. The end products are water, carbon dioxide and elemental nitrogen.
Here catalysts made of very thin, high-temperature-stable films and ceramic catalysts are used.
The Emission Partner SCR catalytic converters are designed for a high conversion performance of nitrogen oxides and formaldehyde, and for long-term stability.
SCR catalytic converters (selective catalytic reaction) are used in lean-burn engines, gas turbines and special applications in industry. Reduction operation requires the injection of urea as a reducing agent.
In addition to the reduction of NOx emissions, the oxidation of carbon monoxide and hydrocarbons (formaldehyde) is still necessary in accordance with legal requirements.
SCR systems are used for this purpose, in which SCR catalysts are used in the first stage and special oxidation catalysts in a downstream stage. The special oxidation catalysts also ensure that excess urea is oxidized (to be locked) and are therefore also called barrier catalysts. The end products are water, carbon dioxide and elemental nitrogen.
Here catalysts made of very thin, high-temperature-stable films and ceramic catalysts are used.
The Emission Partner SCR catalytic converters are designed for a high conversion performance of nitrogen oxides and formaldehyde, and for long-term stability.
Areas of application
General information on catalytic converters
At Emission Partner, we support you with the right catalytic converter for your exhaust system and help you to reduce your emissions. The task of a catalytic converter is to minimize pollutant emissions.
The catalysts are used in a variety of ways for the oxidation and reduction of gaseous pollutants. They are mainly used in combustion engines, gas turbines, boiler systems and special industrial applications.
Our oxidation catalysts are used for excess oxygen (lean-burn engines). If your system does not have an excess of oxygen availablewe install TWC (three-way) catalytic converters.
If NOx emissions also need to be reduced, this can only be achieved with SCR catalytic converters in systems with excess oxygen. These reduce NOx gases in accordance with the current requirements of the 44th BImSchV.
Catalysts with a honeycomb structure are created in order to realize the conversion rate of the pollutants in the most compact installation space possible. This is manufactured either as a coated metal structure (matrix) or from a ceramic (stones).
The Osurface of the catalysts is essentially determined by the cellularity of the matrix. The standard cell size is 200 cpsi (number of cells per inch² – corresponds to approx. 2.54 cm x 2.54 cm). In the case of full extrudates (ceramics), however, the cellularity is usually below 100 cpsi for production reasons and usually 300 cpsi for special applications (TWC).
The cellularity and design of the catalytic converters (diameter and depth) define the exhaust back pressure and the conversion rate of the system. For this reason, an analysis of the installation situation and general conditions is absolutely essential to ensure the optimum design of the system.
At Emission Partner, we support you with the right catalytic converter for your exhaust system and help you to reduce your emissions. The task of a catalytic converter is to minimize pollutant emissions.
The catalysts are used in a variety of ways for the oxidation and reduction of gaseous pollutants. They are mainly used in combustion engines, gas turbines, boiler systems and special industrial applications.
Our oxidation catalysts are used for excess oxygen (lean-burn engines). If your system does not have an excess of oxygen availablewe install TWC (three-way) catalytic converters.
If NOx emissions also need to be reduced, this can only be achieved with SCR catalytic converters in systems with excess oxygen. These reduce NOx gases in accordance with the current requirements of the 44th BImSchV.
Catalysts with a honeycomb structure are created in order to realize the conversion rate of the pollutants in the most compact installation space possible. This is manufactured either as a coated metal structure (matrix) or from a ceramic (stones).
The Osurface of the catalysts is essentially determined by the cellularity of the matrix. The standard cell size is 200 cpsi (number of cells per inch² – corresponds to approx. 2.54 cm x 2.54 cm). In the case of full extrudates (ceramics), however, the cellularity is usually below 100 cpsi for production reasons and usually 300 cpsi for special applications (TWC).
The cellularity and design of the catalytic converters (diameter and depth) define the exhaust back pressure and the conversion rate of the system. For this reason, an analysis of the installation situation and general conditions is absolutely essential to ensure the optimum design of the system.
Turnkey SCR systems
Do you need more than one SCR catalytic converter? Emission Partner has successfully retrofitted more than 300 SCR exhaust systems to date. Talk to us!
