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Showing 1 to 5 of 5 for “"Automotive catalysts"”.
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Ageing Mechanisms in Automotive Catalysts
… models. With the regulations concerning automotive emissions becoming more and more stringent it is important that these laboratory methods are developed, and catalyst ageing mechanisms understood, in order to continue to produce more efficient and durable catalytic control …
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A design strategy applied to sulfur resistant lean NOx̳ automotive catalysts
… to development of many advanced technologies for automotive catalysts such as the lean NOx, trap. Under lean conditions, sulfur will be oxidized to S0₃ and then form sulfate on the trap. The sulfate on the trap is thermodynamically very stable and, thus, difficult to purge. The NOx trap will then …
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The effect of sulphur in fuel on the performance of automotive catalysts
Catalysts have been used on cars since 1974 to reduce tailpipe emission levels of carbon monoxide, hydrocarbons and oxides of nitrogen. Initially, oxidation catalysts were used that operated under very lean air/fuel conditions and gave rise to increased sulphate particulate emissions. These …
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Dynamic Incompressible Navier-Stokes Model of Catalytic Converter in 1-D Including Fundamental Oxidation Reaction Rate Expressions
Classical one-dimensional (1D) models of automotive catalysts are effective in designing catalyst systems that meet current emission standards. These models use various assumptions in order to simplify the mathematical formulation. Although these postulations have been effective in the past, they …
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The development of ceria-based catalysts for automotive after-treatment applications
… gas shift reactions, solid oxide fuel cells and automotive catalytic after-treatment. It has often been the material of choice for supporting precious metals in many of the applications previously mentioned, as it can provide a high surface area and has excellent redox properties. This enables …