Typical application range: 1.6 MW – 16 MW, vertical and horizontal installation for propulsion engines and gensets.
The ECO-NOxTM SCR reduction process in marine applications begins by injecting urea solution (33% or 40%) before the SCR reactor into the gas flow. The ECO-NOxTM uses proprietary self-cleaning urea spray nozzles to obtain a very fine spray that allows to achieve a most complete and uniform mixing between gas and urea.
The gas and reagent mix passes through a variable number of catalyst layers, as is appropriate for the required emission level.  Ecospray has developed customized solutions with or without by-pass, to adjust the level of emissions to the sailing areas (NECAs or others), and shock proof applications for navy vessels, where required.
ECO-NOXTM SCR based systems may include one or more layers of an oxidative catalyst (CatOx), which also makes it possible to efficiently remove CO and a significant portion of any unburned hydrocarbons. CatOx installed downstream of the SCR is also useful in minimizing any ammonia slip.
The ECO-NOxTM SCR systems employ DeNOx and CatOx catalysts produced by the Danish company Haldor Topsøe SA. These catalysts are based on a ceramic fiber porous support that is reinforced with titanium dioxide (TiO2) and are homogeneously impregnated with the active components Tungsten Trioxide (WO3) and Vanadium Pentoxide (V2O5), respectively.