IS ADVANCED SCR TECHNOLOGY AT A STANDSTILL - A PROVOCATION FOR THE ACADEMIC COMMUNITY AND CATALYST MANUFACTURERS

Despite extensive contributions to the literature since 1975 regarding selective catalytic reduction (SCR) catalysis with ammonia for NOx re moval from combustion gases, there is still on-going, controversial di scussion in academia concerning both catalytically active sites in the SCR mechanism and deactivation phenomena with regard to practical SCR applications. New developments such as SCR of NOx by hydrocarbons are still thwarted by problems relating to the development of suitable ma terials. Efforts to replace SCR technology by selective catalytic deco mposition (SCD) for NO remain confused in both theory and experiment. (C) 1998 Elsevier Science B.V. All rights reserved.