Reduction of nitrogen oxides in diesel exhaust: Prospects for use of synthesis gas

Abstract

Already commercialized and some of the most promising technologies of nitrogen oxide reduction in automotive diesel exhaust are compared. The Boreskov Institute of Catalysis (Siberian Branch, Russian Academy of Sciences) is developing an advanced method for the selective catalytic reduction of NO x with synthesis gas produced on board by the catalytic conversion of diesel fuel. The activity of the Ag/Al2O3 catalytic system in NO x reduction by H2 + CO admixtures is studied for both a model composition of the exhaust gas and under real diesel operation conditions.