What is SCR Technology?
SCR stands for Selective Catalytic Reduction. Almost all major European heavy-duty vehicles manufacturers have decided to use this technology to meet the new emission legislation. The main components of the SCR system are the SCR catalyst, the AdBlue injection unit, the AdBlue tank and the AdBlue dosing control unit. AdBlue is injected into the exhaust pipe upstream of the catalyst where its urea molecules react with heat and water to form ammonia. When the NOx reacts inside the catalyst with the ammonia, the harmful NOx molecules in the exhaust are converted to harmless nitrogen and water.
