Microkinetic Modelling for Propane Oxidation in Channel Flows of a Silver-Based Automotive Catalytic Converter

Paper #:
  • 2011-01-2094

Published:
  • 2011-08-30
Citation:
Sawatmongkhon, B., Tsolakis, A., York, A., and Theinnoi, K., "Microkinetic Modelling for Propane Oxidation in Channel Flows of a Silver-Based Automotive Catalytic Converter," SAE Technical Paper 2011-01-2094, 2011, https://doi.org/10.4271/2011-01-2094.
Pages:
11
Abstract:
Computational Fluid Dynamics (CFD) is used to simulate chemical reactions and transport phenomena occurring in a single channel of a honeycomb-type automotive catalytic converter under lean burn combustion. Microkinetic analysis is adopted to develop a detailed elementary reaction mechanism for propane oxidation on a silver catalyst. Activation energies are calculated based on the theory of the Unity Bond Index-Quadratic Exponential Potential (UBI-QEP) method. The order-of-magnitude of the pre-exponential factors is obtained from Transition State Theory (TST). Sensitivity analysis is applied to identify the important elementary steps and refine the pre-exponential factors of these reactions. These pre-exponential factors depend on inlet temperatures and propane concentration; therefore optimised pre-exponential factors are written in polynomial forms. The results of numerical simulations are validated by comparison with experimental data.
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$28.00
Mail
$28.00
Members save up to 42% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Article
2017-07-26
Technical Paper / Journal Article
1990-02-01
Technical Paper / Journal Article
1990-02-01
Technical Paper / Journal Article
1989-09-01
Technical Paper / Journal Article
1989-09-01
Training / Education
2018-02-05
Technical Paper / Journal Article
1989-09-01