Fuel Tech Inc is an technology provider of boiler optimization, efficiency improvement, and air pollution reduction to utility and industrial customers. The company operates in two segments, Air Pollution Control and Fuel Chem. The Air Pollution Control technology segment includes technologies to reduce NOx emissions in flue gas from boilers, incinerators, furnaces and other stationary combustion sources. The Fuel Chem technology segment uses chemical processes in combination with Computational Fluid Dynamics and Chemical Kinetics Modeling boiler modeling for the control of slagging, fouling, corrosion, opacity and other sulfur trioxide-related issues in furnaces and boilers through the addition of chemicals into the furnace using TIFI Targeted In-Furnace Injection technology.