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Impacto dos Catalisadores Automotivos no Controle da Qualidade do Ar
Recebido em 4/4/02; aceito em 17/6/02. By Maria do Carmo Rangel; and Marly Fernandes Araújo Carvalho Instituto de Química, Universidade Federal da Bahia; and Departamento Ciências Exatas e da Terra, Universidade do Estado da Bahia

IMPACT OF AUTOMOTIVE CATALYSTS IN THE CONTROL OF AIR QUALITY. Advanced industrialized nations have experienced severe pollution problems over the past forty years, caused mainly by carbon monoxide, hydrocarbons and nitrogen oxide emissions from automobiles. Catalyst technology has played a major part in minimizing these emissions as required by even more restrictive laws. The catalyst has been optimized over the years to meet the requirements of high activity and long life. The oxidation of hydrocarbon and carbon monoxide are in advanced development stage while that of NOx catalysts is far less advanced. In the future, catalyst technology is expected to contribute to overcome the challenges to get a cleaner air.

 


Impacto dos Catalisadores Automotivos no Controle da Qualidade do ArImpacto dos Catalisadores Automotivos no Controle da Qualidade do Ar
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Quim. Nova,


Vol. 26, No. 2, 265-277, 2003

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Maria do Carmo Rangel and Marly Fernandes Araújo Carvalho
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