Catalytic reduction apparatus for NO.sub.X reduction

Catalytic sulfur trioxide flue gas conditioning

Cement, reduced-carbon ash and controlled mineral formation...

Char for contaminant removal in resource recovery unit

Char separator

Chlorinated hydrocarbon waste incinerator and valorization...

Chute of a feed system for a refuse incineration plant...

Circulating fluid bed combustion with circulating co combustion

Circulating fluid bed combustion with CO combustion promoter

Circulating fluid bed steam generator NO.sub.x control

Circulating fluidized bed repowering to reduce Sox and Nox emiss

Closed cycle waste combustion

Closed loop incineration process

Coal additives

Coal burning method to reduce particulate and sulfur emissions

Coal burning method to reduce particulate and sulfur emissions

Coal combustion products recovery process

Coal combustion to produce clean low-sulfur exhaust gas

Coal combustion to produce clean low-sulfur exhaust gas

Coal firing furnace and method of operating a coal-fired furnace