Traditionally, pollutants have been viewed and controlled individually, but as time passed, targeted pollutants expanded beyond NO_x and SO_x to include mercury and carbon dioxide. As the costs associated with pollution control systems have increased dramatically, the focus has shifted to developing cost-effective multi-pollutant control strategies. Nalco Mobotec has created such a strategy based upon the Nalco Mobotec ROFA^® system. The ROFA system provides superior mixing and temperature distribution that result in more efficient combustion. Addition of the ROTAMIX^® system and other furnace sorbent injection systems results in a highly cost-effective multi-pollutant control system.

Multi-Pollutant Control Options

Nalco Mobotec Multi-Pollutant Control solutions provide a variety of cost-effective offerings for meeting regulatory compliance requirements.

Nalco Mobotec Multi-Pollutant Control Systems

The Nalco Mobotec ROFA system offers improved, more efficient combustion, with less NO_x generated in the furnace and less fuel required to generate a given MW output. Less fuel used for the same MW output helps lower carbon dioxide (CO₂) emissions—which can be reduced still further by means of biomass cofiring or firing.

The addition of ROTAMIX technology for the injection of ammonia or urea lowers NO_x emissions, while furnace sorbent injection (FSI) systems can be applied effectively to reduce SO_x and mercury emissions. FSI systems coupled with ROFA technology increase the contact/interface between sorbent and flue gas. This improved mixing reduces sorbent usage while maintaining desired emission levels. For more information about Multi-Pollutant Control, please refer to the Technology Overview page.