This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
NOx Aromatics Effects in Catalyst-Equipped Gasoline Vehicles
Annotation ability available
Sector:
Language:
English
Abstract
Investigations into fuel compositional effects on emissions using model and full range fuels suggest aromatic components promote NOx conversion over the catalyst
Steady state results derived from a single engine (Ricardo Gasoline Fuels Consortium data) show that at a typical part load condition, the catalyst removes NOx less effectively with lower aromatic fuels. Neither CO nor H2 contribute significantly to catalyst performance.
Two vehicles were tested over a European cycle. Toluene formed more combustion chamber NOx, offset by increased catalyst conversion efficiency giving lower tailpipe NOx than isooctane in the vehicle with the better catalyst light-off and AFR control.
Recommended Content
Authors
Citation
Le Jeune, A., McDonald, C., and Lee, R., "NOx Aromatics Effects in Catalyst-Equipped Gasoline Vehicles," SAE Technical Paper 941869, 1994, https://doi.org/10.4271/941869.Also In
Gasoline: Composition and Additives to Meet the Performance and Emission Requirements of the Nineties
Number: SP-1054; Published: 1994-10-01
Number: SP-1054; Published: 1994-10-01
References
- McDonald C.R. Shore P.R. Lee G.R. Otter G.J. Humphries D.T. “The effect of gasoline composition and stoichiometry on exhaust emissions” Paper proposed for presentation at the 1994 SAE International Fuels & Lubricants Meeting October 17-20 1994 Baltimore, USA
- Bower S.J. Litzinger T. Frottier V. “The Effect Of Fuel Composition And Engine Deposits On Emissions From A Spark Ignition Engine” SAE Paper 932707 1994
- Heywood J.B. “Internal Combustion Engine Fundamentals” McGraw-Hill New York 1988
- Carr R.C. Starkman E.S. Sawyer R.F. “Influence of fuel composition on emissions of carbon monoxide and oxides of nitrogen” SAE Paper 700470 1970
- Kataoka K. Tsurusaki M. Kadota T. “Effect Of Fuel Properties On The Combustion Process And NO Emission In Spark Ignition Engine” SAE Paper 9pgh31940 1994
- Morgan T.D.B. Otter G.J. Lange W.W. Doyon J. Barnes J.R. Yamashita T. “An integrated study of the effects of gasoline composition on exhaust emissions. Part 1. Programme outline and results on regulated emissions” SAE Paper 932678 1993
- Hochhauser A.M. Koehl W. Painter L. Rippon B. Reuter R. Rutherford J. Benson J. Burns V. Gorse R.J. “The Effect Of Aromatics, MTBE, Olefins, And T90 On Mass Exhaust Emissions From Current And Older Vehicles SAE Paper 912322 1991
- Gething J. Hoekman S.K. Guerrero A. Lyons J. “The Effect Of Gasoline Aromatics Content On Exhaust Emissions - A Cooperative Test Program” SAE Paper 902073 1990
- Lucchesi R.P. “Fuel Effects On Emissions From Two Electrically Heated Catalyst Equipped Vehicles” SAE Paper 932760 1994
- Shore P.R. Humphries D.T. Hadded O. “Speciated Hydrocarbon Emissions From Aromatic, Olefinic And Paraffinic Model Fuels” SAE Paper 930373 1993
- Protection of the Environment In: Anonymous, ed. Code of Federal Regulations. Washington: Office of the Federal Register National Archives and Record Administration 1992
- Hosaka K. Onodera T. Wigg E. “The Effect Of Fuel Hydrocarbon Composition On Exhaust Emissions From Japanese Vehicles” SAE Paper 780625 1978
- Monroe D. DiMaggio C. Beck D. Matekunas F. “Evaluation Of A Cu/Zeolite Catalyst To Remove NOx From Lean Exhaust” SAE Paper 930737 1993
- Varde K. Cherng J. Bailey C. Majewski W.A. “Emissions And Their Control In Natural Gas Fuelled Engines” SAE Paper 922250 1992