Verfahren zur Minderung von NO_x‐Emissionen in Rauchgasen

Abstract

Abstract Processes for lowering NO x emissions in flue gases . The authors survey processes currently under development for reducing NO x emission levels of combustion units. Primary measures, i.e. acting upon the combustion process itself, do not suffice to meet the recently stiffened limiting emission values; particular attention is therefore paid to secondary measures involving the flue gases. The article describes both wet processes and dry catalytic and non‐catalytic processes, some of which can also be employed for simultaneous removal of NO x and SO 2 . In view of the fast large‐scale implementation demanded, only a few, already extensively developed processes will presumable be accepted, and will play a considerable role on an industrial scale.