Practical Technology for
Combustion Improvement and Emissions Reduction
As a world leader in combustion optimization and multi-pollutant reduction, Nalco Mobotec brings innovative solutions to the world's global air pollution control challenges. Nalco Mobotec offers practical approaches for the control and reduction of emissions such as NOx, SOx, CO, PM (Particulate Matter) and Mercury, while maximizing efficiency. In addition, Nalco Mobotec's solutions can accommodate fuel flexibility, biomass conversions, or co-firing. Instead of requiring major capital equipment purchases, Nalco Mobotec's finessed approach optimizes your current assets.
ROFA® (Rotating Opposed Fire Air) Nalco Mobotec's patented design sets the volume of the furnace in rotation via an asymmetric boosted over-fire air system. The induced rotation and turbulence prevent laminar flow, resulting in superior mixing and temperature distribution, for more effective combustion. Staging the combustion allows for optimal emissions control, inducing reduction of NOx, SOx, CO, and particulate matter, while minimizing excess air and unburned carbon in the fly ash. This system has demonstrated significant NOx reductions, with lower reagent use or no need for a reagent whatsoever. ROFA also allows for the flexibility to fire various fuels or co-fire biomass.
ROTAMIX® is a patented technique for rotary mixing of chemicals and/or additional fuel. The system combines air injection nozzles with automatically regulated lances for the injection of chemicals into the furnace where the temperature is most favorable. Combined with ROFA, the ROTAMIX system can dramatically reduce NOx emissions, promoting meaningful air pollution control. Additionally, demand for chemicals is drastically reduced, when compared to other SNCR systems. ROTAMIX is also used to inject fireside chemical treatments, to minimize slag deposition and/or corrosion in the system.
ROFA FSI (Furnace Sorbent Injection) reduces capital and operating costs through optimal in-furnace mixing of chemicals such as lime, limestone, soda ash, and other sorbents. This air pollution control technology is effective for capturing SO2, SO3 and mercury.
Mercury control technologies from Nalco Mobotec provide solutions to address site specific operating and mercury emission control needs. The MerControl™ family of solutions includes halogen injection, non-carbon sorbents that do not compromise fly ash quality and FGD (flue gas desulfurization) re-emission control approaches that bind mercury in the waste system of a FGD unit. For further emissions control, on-site activated carbon production technology is also available from Nalco Mobotec.
