Influence of CeO2 catalytic system in vehicle emissions and fuel consumption reduction

A project in Thessaloniki-Greece was conducted using gasoline vehicles equi pped with a rare earths (mainly cerium oxide-CeO2) catalytic system. The ma in idea of this system is to provide the combustion chamber with an adequat e amount of cerium oxide.(CeO2), without affecting the operational paramete rs of the engine. The gasoline engine passenger cars were tested for the CO and HC emissions. These results are correlated with diesel engine vehicles tests for particulates emissions. Both car categories present important re duction of the pollutant emissions and fuel consumption.