SCR is taking the heavy-duty trucking industry in a new direction.
Selective Catalytic Reduction (SCR) is the first and only technology in decades to be as good for the environment as it is good for business and vehicle performance. When EPA 2010 standards go into effect, no heavy-duty diesel engine can be emitting levels of nitrogen oxide (NOx) higher than .2 g/bhp-hr (grams per brake horsepower-hour), a standard more stringent than any in place in Europe. SCR is the only technology to date that has been proven to be able to meet this standard.
SCR will reduce:
Using Diesel Exhaust Fluid (DEF) to convert NOx emissions into pure nitrogen and water vapor, two natural components of the air we breathe, SCR systems can also be combined with a diesel particulate filter (DPF) to achieve even greater emissions reductions for PM.
The only other currently viable option requires the use of increased exhaust gas recirculation (EGR), which creates more heat rejection (wasted energy) and increased engine degradation, and results in fuel economy loss as high as 2% - a significant operational penalty for truck fleets and owner/operators.
Did you know? According to an online study conducted in May 2009, more than half (51.2%) of truck buyers are likely or very likely to consider the purchase of SCR to meet the 2010 EPA standards, compared to only 31.2% that are likely or very likely to consider increased EGR. Find out more by clicking here.