How AdBlue® works

AdBlue® IS NOT A FUEL, or a FUEL ADDITIVE. AdBlue® is a product that is injected into the exhaust system of diesel powered heavy commercial vehicles and agricultural machinery. It is also being used more and more on passenger cars. When the AdBlue® solution is injected into the extremely hot exhaust a chemical reaction takes place. The noxious gases in the exhaust react with the ammonia in the AdBlue® and the catalyst material contained within the exhaust to produce nitrogen and water, two inert harmless substances. This therefore reduces the volume of harmful gases emitted by diesel powered vehicles.

Expressed as an equation: 4NO + 4NH3 + O2 –» 4N2 + 6H2O

As you can see from the highlighted section the output consists of nitrogen and water. SCR (selective catalytic reduction) systems have a conversion efficiency of between 70 and 90%

Noxdown Limited produce AdBlue® to the internationally recognised ISO 22241 standard – the standard required in order to call the product AdBlue®

Selective catalytic reduction (SCR) is also used in both the marine sector and in industrial applications. Generally speaking these sectors use the new AUS40 specification for the product they require. In essence the product is the same as AdBlue® used in the automotive sector but produced to a higher concentration of 40% by weight compared to 32.5% used in automotive AdBlue®.

Using our modern production facility, Noxdown Limited invites enquiries from both industrial and marine customers who require urea solutions in any specific concentration.