Low-Temperature Selective Catalytic Reduction (SCR) of NOx with NH3 Over Zeolites and Metal Oxide-Based Catalysts and Recent Developments of H2-SCR

Abstract

This review provides an introduction to the recent progress in the development of transition metal-exchanged zeolites and mixed oxide-based catalysts for the low-temperature selective catalytic reduction (SCR) of NOx with ammonia. The nature of the different active species over different catalysts and the corresponding relationship between their performance and catalytic properties as well as the mechanism and kinetics of SCR reaction on different catalysts are discussed. In addition, recent developments of H2-SCR are also reviewed.