Catalytic combustion is useful to avoid emission of carbon monoxide and nitrogen oxides into the environment. The widespread use of the catalytic converter was the response of the automotive industry to the legislation of the countries which sets limits on pollutant emissions. The catalytic combustion of CO + NO and air mixtures in a planar stagnation-point flow over a platinum foil is studied numerically in this paper. In order to optimize the operation of the platinum converter, chemical kinetic knowledge is necessary, therefore a kinetic model is proposed, based on elementary reaction steps, that allows to describe the experiments quantitatively. The heterogeneous reaction mechanism is modeled with the dissociative adsorption of the molecular oxygen and the nondissociative adsorption of CO, together with a surface reaction of the Langmiur-Hinshelwood type and the desorption reaction of the adsorbed products, CO(s) and NO(s). The resulting governing equations based on the boundary layer theory have been numerically integrated by using Runge-Kutta method and the response curve has been obtained as a function of the initial mixture concentration. The reduction of NO and oxidation of CO in absence and presence of O2 has been investigated, and the optimal oxygen feeding into the initial mixture concentration for the maximum reduction of CO and NO was found and corresponds to the reported experimental results.
Skip Nav Destination
ASME 2008 2nd International Conference on Energy Sustainability collocated with the Heat Transfer, Fluids Engineering, and 3rd Energy Nanotechnology Conferences
August 10–14, 2008
Jacksonville, Florida, USA
Conference Sponsors:
- Advanced Energy Systems Division and Solar Energy Division
ISBN:
978-0-7918-4319-2
PROCEEDINGS PAPER
Numerical Modeling of an Automotive Catalyst for CO and NO Emissions
Juan C. Prince,
Juan C. Prince
Instituto Tecnolo´gico de Veracruz, Veracruz, Ver., Me´xico
Search for other works by this author on:
Ce´sar Trevin˜o,
Ce´sar Trevin˜o
Universidad Nacional Auto´noma de Me´xico, Me´xico, D.F., Mexico
Search for other works by this author on:
Mario Diaz
Mario Diaz
Instituto Tecnolo´gico de Veracruz, Veracruz, Ver., Me´xico
Search for other works by this author on:
Juan C. Prince
Instituto Tecnolo´gico de Veracruz, Veracruz, Ver., Me´xico
Ce´sar Trevin˜o
Universidad Nacional Auto´noma de Me´xico, Me´xico, D.F., Mexico
Mario Diaz
Instituto Tecnolo´gico de Veracruz, Veracruz, Ver., Me´xico
Paper No:
ES2008-54218, pp. 205-211; 7 pages
Published Online:
June 22, 2009
Citation
Prince, JC, Trevin˜o, C, & Diaz, M. "Numerical Modeling of an Automotive Catalyst for CO and NO Emissions." Proceedings of the ASME 2008 2nd International Conference on Energy Sustainability collocated with the Heat Transfer, Fluids Engineering, and 3rd Energy Nanotechnology Conferences. ASME 2008 2nd International Conference on Energy Sustainability, Volume 1. Jacksonville, Florida, USA. August 10–14, 2008. pp. 205-211. ASME. https://doi.org/10.1115/ES2008-54218
Download citation file:
8
Views
Related Proceedings Papers
Related Articles
Numerical Predictions of Hydrogen-Air Rectangular Channel Flows Augmented by Catalytic Surface Reactions
J. Heat Transfer (April,2012)
Development of a Hybrid Catalytic Combustor
J. Eng. Power (April,1978)
An Experimental Study of the Effects of Platinum on Methane/Air and Propane/Air Mixtures in a Stagnation Point Flow Reactor
J. Heat Transfer (November,2009)
Related Chapters
Numerical Simulation Research on a Fixed Bed Gasifier
International Conference on Information Technology and Management Engineering (ITME 2011)
Clinical issues and experience
Mechanical Blood Trauma in Circulatory-Assist Devices
Why Do We Avoid Conflict?
Conflict Resolution: Concepts and Practice (The Technical Manager's Survival Guides)