Electrically Heated Transition Metal Oxide Catalyst for Cold Start Emission Reduction Frpm Gasoline Engine

摘要

Cold-start emissions represent the greatest concentration of emissions from today's catalyst equipped vehicle. The existing catalytic converters are successful in reducing emissions after engine warm-up. The catalyst is not active during this warm-up period due to its low operating temperature. Emission reduction is possible by heating and changing the composition of catalyst used in automobile. This paper deals with the potential of catalytic systems with electrically heated metal oxide catalyst and the presentation of thermal analysis provides insight into the catalytic system. In this investigation, an attempt is being made to study the pollution from multi-cylinder SI engine, by developing improved catalysts. It is found that the electrically heated catalytic (EHC) converter with copper oxide catalyst when used with existing catalytic converter, the hydrocarbons (HC) and carbon monoxide (CO) emissions are reduced considerably.