In 1975, the catalytic converter was installed on all new cars. The job of the catalytic converter is convert harmful pollutants into less harmful emissions before they ever leave the car’s exhaust system. Catalytic converters are designed to reduce all three pollutants: Carbon monoxide Hydrocarbons Nitrogen oxides Main emissions of the car engine Nitrogen gas N2 Carbon dioxide Water vapor Catalytic Converter Operations A coal scrubber is designed to remove SO2 and Nox from coal production factories. Please take notes on the Coal Scrubber Notepage while watching this video. Coal production & scrubbers