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Speciation of Hydrocarbons in Exhaust from Low-Emission, Gasoline-Fueled Vehicles by High-Speed and Standard Gas Chromatography Methods
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 16, 2007 by SAE International in United States
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Previous SAE papers documented the development of a high-speed, high-resolution gas chromatography (GC) instrument for speciating the individual hydrocarbon vapors in vehicle exhaust. The “fast GC” was built in response to an AIGER (American Industry / Government Emissions Research) consortium initiative. This report continues the evaluation and expands the application of the fast GC to include exhaust from low-emission gasoline-fueled vehicles [EPA standard of 0.075 g/mi (50k) NMOG]. An extensive database of 320 exhaust speciation records was generated by collecting and analyzing exhaust from two vehicles that were fueled with five different gasolines. Bag samples were collected during the 1975 FTP driving cycle and analyzed by both the high-speed and the standard GC techniques for method comparison. Statistical analysis of results for nine representative species revealed that the fast GC method generally agreed to within ±10% of the standard GC method for average measured concentrations. Repeatability for the fast GC was about ±3% of the average measured value. The report also includes a rigorous evaluation of detection limit and response linearity characteristics, which showed that the typical fast GC detection limit was about 0.005 ppmC (parts-per-million carbon).
CitationFarrugia, J. and Olson, K., "Speciation of Hydrocarbons in Exhaust from Low-Emission, Gasoline-Fueled Vehicles by High-Speed and Standard Gas Chromatography Methods," SAE Technical Paper 2007-01-0305, 2007, https://doi.org/10.4271/2007-01-0305.
- Olson, K.L. Loo, J.F. Mulawa, P.A. “Rapid Hydrocarbon Speciation and Exhaust Reactivity Measurements using High Speed, High Resolution Gas Chromatography,” SAE Technical Paper No. 2000-01-2950 2000
- Farrugia J. Olson K. “Evaluation of a High Speed, High Resolution Gas Chormatography Instrument for Exhaust Hydrocarbon Speciation,” SAE Technical Paper No. 2005-01-0683 2005
- Siegl, W.O. Richert, J.F.O. Jensen, T.E. Schuetzle, D. Swarin, S.J. Loo, J.F. Prostak, A. Nagy, D. Schlenker, A.M. “Improved Emissions Speciation Methodology for Phase II of the Auto/Oil Air Quality Improvement Research Program - Hydrocarbons and Oxygenates,” SAE Technical Paper No. 930142 1993
- Siegl, W.O. Chladek, E. Strand, V.L. Chase, R.E. “Variability in Hydrocarbon Speciation Measurements at Low Emission (ULEV) Levels,” SAE Technical Paper No. 950781 1995
- “California Non-Methane Organic Gas Test Procedures,” California Environmental Protection Agency, Air Resources Board 9528 Telstar Ave., El Monte, California July 30 2002
- Bauer, E. L. A Statistical Manual for Chemists 2nd Academic Press New York, NY 1971
- Hoekman, S.K. Stanley, R.M. Clark, W.L. Siegl, W.O. Schlenker, A.M. Biller, W.F. “CRC Speciated Hydrocarbon Emissions Analysis Round Robin Test Program,” SAE Technical Paper No. 950780 1995
- Lanning, L.A. Clark, W.L. Siegl, W.O. Hoekman, S.K. Stanley, R. M. Biller, W.F. “CRC Hydrocarbon Emissions Analysis Round Robin Test Program, Phase II,” SAE Technical Paper No. 971608 1997
- Slemr, J. Slemr, F. D'Souza, H. Partridge, R. “Study of the Relative Response Factors of Various Gas Chromatograph-Flame Ionisation Detector Systems for Measurement of C2 - C9 Hydrocarbons in Air,” J. Chromatography A 1061 75 84 2004