What is Selective Catalytic Reduction (SCR), How does SCR work with AdBlue, Why does SCR helps with fuel efficiency,

1. Selective Catalytic Reduction
(SCR) Technology
and
AdBlue®

2. What is SCR?
 Selective Catalytic Reduction (SCR) is a technology which leading
European manufacturers of diesel vehicles have jointly adopted
after comparing and testing a variety of available technologies
aimed at reducing emission levels to the required limits.
 SCR is the only technology that produces the reduction of exhaust
fume emissions required by legislation while allowing optimum
engine operation in terms of performance and fuel consumption.
 SCR technology is proven to enable Heavy Diesel Vehicle engines
to comply with Euro IV, V and VI. Using Air1® is the most efficient
way to take full advantage of SCR technology and to meet
emission regulations.

3. SCR works with the addition of AdBlue®, a high
purity urea based fluid
SCR technology reduces emissions of the NOx gases that are produced
inside the engine during combustion. It works with AdBlue® that is
injected in the hot exhaust gas stream just prior to the SCR unit.
The AdBlue® is hydrolyzed to ammonia (NH3) and inside the SCR unit it
assists in breakdown of NOx to harmless Nitrogen gas (N2) and steam
(H20).

4. Why will SCR with AdBlue® make you save on
fuel?
 Competing technology EGR combats NOx inside
the engine by re-circulating a portion of the exhaust
back through the engine’s cylinders. This requires
the engine to work harder and consume more fuel.
 SCR process allows engines to operate at
maximum efficiency, increasing fuel economy, and
lowering costs.
 OEMs and fleets utilizing SCR have seen fuel
efficiencies ranging from 4 to 11% percent in trucks
equipped with SCR technology.

5. For further information please
contact the Air1® team
at: www.air1.info
Air1® is a registered trademark of Yara International ASA. AdBlue® is a registered trademark of the Verband der Automobilindustrie e.V (VDA)