Nalco Fuel Tech

Joachim Von Bergman, Deceased

Reinhard Pachaly

Jogindar Mohan Chawla

Distribution of pollution reducing agents within an effluent at the effective temperature window for effective gas phase reaction is greatly improved. A two-phase mixture having fine droplets of liquid, e.g. a NO.sub.x reducing agent such as aqueous solutions of urea or ammonia, dispersed in a gaseous component, such as air, is injected into the effluent an sonic velocity to achieve a distribution of particles of sizes effective to uniformly reduce NO.sub.x within the zone of effective temperature while not producing a significant level of droplets so large that they survive beyond the temperature zone.

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Mulheim/Ruhr, Germany

Joachim Von Bergman, Deceased