Nitrogen oxides

SCR (Selective Catalytic Reduction) systems are designed to selectively reduce NOx (nitrogen oxides) in many applications. Using a reagent, typically ammonia or urea, in the presence of a catalyst, SCR systems convert NOx into nitrogen and water vapour, two environmentally harmless compounds. SCR technology is recognised for its high efficiency and reliability, making it the optimal solution for controlling harmful emissions.

Area Impianti manufactures low and high temperature SCRs, compartmented or not, with or without auto regeneration. We specialise in hybrid systems ideal for incineration, self-cleaning systems ideal for glass and innovative SCR tail ends for the cement industry. We also supply BAC (Bag and Catalyst) systems, where the DeNOx function is integrated into the filter through compact solutions.

Area Impianti can integrate the SNCR (Selective Non-Catalytic Reduction) system with the boiler, to optimise the first post-combustion reduction section, studying the thermal profile and optimising the injection points.

The SNCR treatment of nitrogen oxides takes place through reaction with ammonia activated by high temperature (850-1050°C). These temperatures are usually reached immediately downstream an incineration or calcination furnace.