Erich Hums

Is advanced SCR technology at a standstill? A provocation for the academic community and catalyst manufacturers

Abstract Despite extensive contributions to the literature since 1975 regarding selective catalytic reduction (SCR) catalysis with ammonia for NOx removal from combustion gases, there is still on-going, controversial discussion 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 materials. Efforts to replace SCR technology by selective catalytic decomposition (SCD) for NO remain confused in both theory and experiment.

Innovative lines of SCR catalysis: NOx reduction for stationary diesel engine exhaust gas and dioxin abatement for waste incineration facilities

Abstract As shown by the NO x emission control for stationary diesel engines and the dioxin abatement for waste incineration facilities, SCR catalysts have been optimized for certain applications by modifying specific material properties.