Simulation Optimizes Design of Selective Catalytic Reduction Systems to Meet Emissions Challenges - Article

The United States Environmental Protection Agency (EPA) and the European Union (Euro 6 standards) have implemented stringent diesel emissions standards for 2010 and 2013 respectively that force a dramatic reduction in discharges of particulate matter and nitrogen oxide (NOx). Current state-of-the-art in-cylinder solutions have fallen far short of achieving these limits. Selective catalytic reduction (SCR), which converts NOx with the aid of catalyst to nitrogen and water, is one exhaust aftertreatment method that is being considered to meet emissions requirements.