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Comparison of Four Sampling Methods for Semi-volatile Organic Compounds in Gas Phase Diesel Engine Exhausts
Technical Paper
2008-01-2435
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Newly designed Teflon® O-rings along with XAD-2 resin, stainless steel screens, lock rings, and glass cartridges were used to construct a new semi-volatile organic compounds (SVOC's) sampling device. This new sampling device allows direct and repeated sampling, extraction, and cleaning without ever having to be disassembled or reassembled. This new XAD-2 glass cartridge (X2) was compared with three other sampling methods namely Empore® membrane (EM), hexane impinger (HI), and “Cold Trap” (CT) for SVOC sampling efficiency on diesel engine exhaust emissions. The X2 method showed the highest overall SVOC collection efficiency, followed by the EM and HI methods. The X2 method has higher trapping efficiency for the oxygenates, polycyclic aromatic hydrocarbons (PAH's), alkyl cyclohexanes, and the alkyl aromatics than the other three SVOC sampling methods. The HI method has the highest trapping efficiency for the normal alkanes. The average percent breakthrough for all monitored SVOC's for X2, EM, HI, and CT methods are 8.5%, 7.0%, 19%, and 28%, respectively. The X2 and EM methods produced data with higher precision than HI and CT methods.
Authors
Citation
Pan, J. and Fanick, E., "Comparison of Four Sampling Methods for Semi-volatile Organic Compounds in Gas Phase Diesel Engine Exhausts," SAE Technical Paper 2008-01-2435, 2008, https://doi.org/10.4271/2008-01-2435.Also In
References
- Compendium of Methods for the Determination of Toxic Organic Compounds in Ambient Air Second Compendium Method TO-13A, Determination of Polycyclic Aromatic Hydrocarbons (PAH's) in Ambient Air Using Gas Chromatography/Mass Spectrometry (GC/MS) Center for Environmental Research Information, Office of Research and Development, U.S. Environmental Protection Agency Cincinnati, OH 45268 January 1999
- Storey, John M.E. et. al Analysis of Semi-volatile Organic Compounds in Diesel Exhaust Using a Novel Sorption and Extraction Method SAE paper 1999-01-3534 , International Fall Fuels and Lubricants Meeting and Exposition Toronto, Ontario Canada October 25-28 1999
- Lanning, L.A. et. al A New Method for Diesel HC Collection and Speciation SAE paper 2000-01-2951 . International Fuels and Lubricants Meeting and Exhibition, Emissions Measurement and Test Methods Oct 2000 Baltimore MD