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Title: Dynamic behavior of automotive catalysts. 4. Impact of air/fuel ratio excursions during driving

Abstract

Previous studies of the transient response of three-way automotive catalysts to rapid changes in air/fuel ratio have considered constant speed operation only. The present work analyzes and compares emissions measure over two different three-way catalysts during the warmed-up portion of the Federal test procedure. A computerized relational data base was used to analyze the large amount of data recorded in each test run. The results demonstrate that the large-amplitude, long-duration rich excursions that occur during variable-speed driving have a major impact on CO, hydrocarbon, and NO emissions.

Authors:
;
Publication Date:
Research Org.:
Physical Chemistry Department, General Motors Research Laboratories, Warren, Michigan
OSTI Identifier:
6365164
Resource Type:
Journal Article
Journal Name:
Ind. Eng. Chem., Prod. Res. Dev.; (United States)
Additional Journal Information:
Journal Volume: 24:3
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; 54 ENVIRONMENTAL SCIENCES; AUTOMOTIVE FUELS; CATALYSTS; COMBUSTION PRODUCTS; FUEL-AIR RATIO; HYDRODYNAMICS; VEHICLES; EMISSION; CARBON MONOXIDE; COMBUSTION CONTROL; COMPUTER CALCULATIONS; DATA BASE MANAGEMENT; FUEL ADDITIVES; HYDROCARBONS; MATERIALS TESTING; MONITORING; NITROGEN OXIDES; OPERATION; ADDITIVES; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; CONTROL; FLUID MECHANICS; FUELS; MANAGEMENT; MECHANICS; NITROGEN COMPOUNDS; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; TESTING; 023000* - Petroleum- Properties & Composition; 025000 - Petroleum- Combustion; 500200 - Environment, Atmospheric- Chemicals Monitoring & Transport- (-1989)

Citation Formats

Herz, R K, and Shinouskis, E J. Dynamic behavior of automotive catalysts. 4. Impact of air/fuel ratio excursions during driving. United States: N. p., 1985. Web. doi:10.1021/i300019a009.
Herz, R K, & Shinouskis, E J. Dynamic behavior of automotive catalysts. 4. Impact of air/fuel ratio excursions during driving. United States. https://doi.org/10.1021/i300019a009
Herz, R K, and Shinouskis, E J. 1985. "Dynamic behavior of automotive catalysts. 4. Impact of air/fuel ratio excursions during driving". United States. https://doi.org/10.1021/i300019a009.
@article{osti_6365164,
title = {Dynamic behavior of automotive catalysts. 4. Impact of air/fuel ratio excursions during driving},
author = {Herz, R K and Shinouskis, E J},
abstractNote = {Previous studies of the transient response of three-way automotive catalysts to rapid changes in air/fuel ratio have considered constant speed operation only. The present work analyzes and compares emissions measure over two different three-way catalysts during the warmed-up portion of the Federal test procedure. A computerized relational data base was used to analyze the large amount of data recorded in each test run. The results demonstrate that the large-amplitude, long-duration rich excursions that occur during variable-speed driving have a major impact on CO, hydrocarbon, and NO emissions.},
doi = {10.1021/i300019a009},
url = {https://www.osti.gov/biblio/6365164}, journal = {Ind. Eng. Chem., Prod. Res. Dev.; (United States)},
number = ,
volume = 24:3,
place = {United States},
year = {Sun Sep 01 00:00:00 EDT 1985},
month = {Sun Sep 01 00:00:00 EDT 1985}
}