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What is SCR technology?

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What is SCR technology?

2023-06-30

The SCR system, for Selective Catalytic Reduction, works with AdBlue®. It improves the environmental footprint of diesel vehicles. How does this complementarity work? What are the main advantages? What you need to know.

 

Combined with SCR technology, AdBlue® converts nitrogen oxides (NOx) emitted by the diesel engine into nitrogen and water vapour, non-polluting components already present in the atmosphere.

 

 

In practice:

 

1. AdBlue® is injected into the exhaust pipe upstream of the SCR catalyst.

 

2. Under the effect of heat, urea decomposes into ammonia.

 

3. By chemical reaction with ammonia in the SCR catalyst, nitrogen oxides from the engine are converted into nitrogen (a harmless gas, the main component of the air we breathe) and water vapour.

 
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