Carbon monoxide: control strategies on the automobile source Employ a leaner air/fuel mixture(higher air/fuel ratio) Employ catalytic exhaust reactors Excess air is pumped into the exhaust pipe Air-exhaust mixture pass through a catalytic converter to oxidize co to co2 Addition of oxygenates to gasoline Examples of oxygenates: methanol, ethanol, MTBECarbon monoxide: control strategies on the automobile source • Employ a leaner air/fuel mixture (higher air/fuel ratio) • Employ catalytic exhaust reactors – Excess air is pumped into the exhaust pipe. – Air-exhaust mixture pass through a catalytic converter to oxidize CO to CO2. • Addition of oxygenates to gasoline – Examples of oxygenates: methanol, ethanol, MTBE