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Analysis of Petroleum Fuels by Midband Infrared Spectroscopy
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 01, 1994 by SAE International in United States
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A new analytical method based on midband infrared spectroscopy in the 4,000-400 cm-1 wavenumber region has been developed that allows for rapid and reliable measurement of several pertinent fuel properties simultaneously. The method may be automated and, by using commercially available Fourier transform infrared (FTIR) equipment, would be eminently suitable for laboratory and field applications.
Preliminary studies show that midband infrared spectroscopic data may be calibrated to determine those fuel properties that are due to chemical structural features that give rise to active infrared resonance bands. The measured fuel property values must relate linearly to spectral intensities, that is, they must obey Beer's law. In this study, the initially selected fuel properties were aromatic hydrocarbon-, benzene-, and MTBE contents, carbon-to-hydrogen ratio, heat of combustion, cetane index, refractive index, viscosity, and density. Good correlations were found between FTIR and nuclear magnetic resonance (NMR) data, and between FTIR and cetane number, as measured in the constant volume combustion apparatus (CVCA). NMR data may be considered definitive in chemical structural arguments. Since the FTTR data correlate well with both the fundamental NMR and the CVCA-determined cetane number data, by inference, the correlations elevate the fundamental credibility of the CVCA data as well.
Usefulness of the method is discussed for middle distillate fuels (DF-2, JP-5, JP-8, Jet A, and Jet A-1), for gasolines, and for natural gas.
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CitationFodor, G., "Analysis of Petroleum Fuels by Midband Infrared Spectroscopy," SAE Technical Paper 941019, 1994, https://doi.org/10.4271/941019.
- Swarin, S.J. Drumm, C.A. “Prediction of Gasoline Properties With Near-Infrared Spectroscopy and Chemometrics,” SAE Paper No. 912390 1991
- Kelly, J.J. Callis, J.B. “Nondestructive Analytical Procedure for Simultaneous Estimation of the Major Classes of Hydrocarbon Constituents of Finished Gasolines,” Anal. Chem. 1990 62 1444
- Westbrook, S.R. “Army Use of Near-Infrared Spectroscopy to Estimate Selected Properties of Compression Ignition Fuels,” SAE Paper 930734 1993
- Fodor, G.E. Kohl, K.B. “Analysis of Middle Distillate Fuels by Midband Infrared Spectroscopy,” Energy & Fuels 1993 7 598
- Ryan, T. W., III “Development of a Portable Fuel Cetane Quality Monitor,” Interim Report BFLRF No. 277 Belvoir Fuels and Lubricants Research Facility (SwRI), Southwest Research Institute Defense Technical Information Center Accession No. AD A252331 1992
- Bellamy, L.J. The Infrared Spectra of Complex Molecules Chapman and Hall Ltd. London 1975 1980
- Martens, H.A. “Multivariate Calibration: Quantitative Interpretation of Non-Selective Chemical Data,” Parts I and II of the 1985 PhD Dissertation The Norwegian Institute of Technology, University of Trondheim Trondheim, Norway 1986 82-539-0273-5 82-539-274-3
- Haaland, D. Thomas, E.V. “Partial Least-Squares Method for Spectral Analysis. 1. Relation to other Quantitative Calibration Methods and the Extraction of Qualitative Information,” Anal. Chem. 1988 60 1193
- Haaland, D. Thomas, E.V. “Partial Least-Squares Method for Spectral Analysis. 2. Application to Simulated and Glass Spectral Data,” Anal. Chem. 1988 60 1202
- Lacey, P.I. “Development of a Lubricity Test Based on the Transition From Boundary Lubrication to Severe Adhesive Wear in Fuels,” STLE Meeting Philadelphia, PA May 1994