Characterisation and Modelling of the Reactions in a Three-Way PdRh Catalyst in the Exhaust Gas from an Ethanol-Fuelled Spark-Ignition Engine

Claire McAtee, Geoffrey McCullough, David Sellick, Alexandre Goguet

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Abstract

This work investigated and modelled the performance and characteristics of automotive catalytic converter formulations when subjected to a synthetic exhaust gas mixture representative of that emitted by an ethanol-fuelled spark-ignition engine. A synthetic gas reactor and exhaust gas emissions analysers were used to assess the catalytic activity, the products distribution and chemical mechanisms exhibited by a commercial catalytic converter formulation when exposed to ethanol containing gas mixtures. A commercially available after-treatment modelling platform named Axisuite was used to simulate the catalyst performance. This software was used to assign the pre-exponential frequency factor and activation energy variables within the rate equations. A set of global kinetic coefficients for the relevant reactions was established and is reported.
Original languageEnglish
Number of pages13
JournalProceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering
Early online date01 Jan 2019
DOIs
Publication statusEarly online date - 01 Jan 2019

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Catalytic converters
Exhaust gases
Internal combustion engines
Gas mixtures
Ethanol
Catalysts
Gas emissions
Catalyst activity
Activation energy
Kinetics
Gases

Keywords

  • SI engines exhaust emission control
  • Ethanol
  • Reaction kinetics
  • Catalyst modelling
  • Acetaldehyde emissions

Cite this

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abstract = "This work investigated and modelled the performance and characteristics of automotive catalytic converter formulations when subjected to a synthetic exhaust gas mixture representative of that emitted by an ethanol-fuelled spark-ignition engine. A synthetic gas reactor and exhaust gas emissions analysers were used to assess the catalytic activity, the products distribution and chemical mechanisms exhibited by a commercial catalytic converter formulation when exposed to ethanol containing gas mixtures. A commercially available after-treatment modelling platform named Axisuite was used to simulate the catalyst performance. This software was used to assign the pre-exponential frequency factor and activation energy variables within the rate equations. A set of global kinetic coefficients for the relevant reactions was established and is reported.",
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AU - McCullough, Geoffrey

AU - Sellick, David

AU - Goguet, Alexandre

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KW - SI engines exhaust emission control

KW - Ethanol

KW - Reaction kinetics

KW - Catalyst modelling

KW - Acetaldehyde emissions

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JO - Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering

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