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Q: What is a catalytic converter and how does it work? – Jonas

A: Dear Jonas,

A catalytic converter is a canister-like device that reduces harmful automobile emissions. The catalytic converter was introduced in 1975 following the enactment of federal clean air laws. Most cars today are equipped with a three-way catalytic converter, so called because the device diminishes three harmful exhaust components – nitrogen oxide, nitrogen dioxide, and unburned hydrocarbons including carbon monoxide. Exhaust passes through the catalytic converter before it passes through the muffler and tail pipe. A ceramic honeycomb lines the catalytic converter. Metal catalysts – usually platinum, rhodium, and palladium – coat the structure, which increases surface area for contact with the exhaust. The catalysts speed up the chemical reactions which convert harmful nitric oxide and unburned hydrocarbons into less harmful carbon dioxide, nitrogen, and water vapor. Visit Tire Pros of Frederick more more auto repair tips.