A method for metering a reagent into a flowing medium includes adjusting a quantity of a reagent to be metered per unit of time into a flowing medium as a function of a thickness of a reaction zone in a catalytically active material. An apparatus for metering a reagent into a flowing medium includes...http://www.google.es/patents/US5643536?utm_source=gb-gplus-sharePatente US5643536 - Method and apparatus for metering a reagent into a flowing medium
Method and apparatus for metering a reagent into a flowing medium
