Diesel oxidation catalyst

Four commercial monolithic diesel oxidation catalysts (DOCs) with two different platinum group metal (PGM) loadings and Pt:Pd ratios of 1:0, 2:1, 3:1 (w/w) were investigated systematically for CO, C3H6, and NO oxidation, CO-C3H6 co-oxidation, and COC3H6-NO oxidation reactions via transient activity measurements in a simulated diesel engine exhaust environment. As PGM loading increased, light-off curves shifted to lower temperatures for individual and co-oxidation reactions of CO and C3H6. CO and C3H6 were observed to inhibit the oxidation of themselves and each other.

10p tudichquannguyet 29-11-2021 5 1   Download

The energy requirement has increased exponentially over the past decades due to industrialization and the changes of subsequent lifestyle. Almost 90% of the present energy source is based on the combustion of fossil fuels. Diesel engines are considered the most ideal power generators in transportation and industrial sectors owing to their fuel economy and efficiency. However, they suffer from the disadvantages of exhaust pollutants particularly oxides of nitrogen (NOx), which are facing increasingly stringent emission regulations which led to the search for alternative technologies.

7p kethamoi2 15-12-2019 36 0   Download