Catalysis Letters, Vol.123, No.3-4, 233-238, 2008
DME as reductant for continuous lean reduction of NOx over ZSM-5 catalysts
Dimethyl ether (DME) is an interesting alternative fuel to diesel, but is not an efficient reductant in lean NO (x) conversion over typical diesel HC-SCR catalysts. Comparatively high deNO(x) activity was found over H-ZSM-5 in the presence of water, giving reduction of 28% NO and 37% NO2 respectively with a DME/NOx-ratio of 4.