LC-(1)H NMR Characterization Studies of Tricyclic Aromatics and Olefins in Diesel Fuels.
Final rept. Sep 82-31 Dec 85,
VIRGINIA POLYTECHNIC INST AND STATE UNIV BLACKSBURG DEPT OF CHEMISTRY
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New analytical approaches for determination of 1 tricyclic aromatics, 2 alkenes, and weight data in Naval diesel fuels are described. Tricyclic aromatics are detected and characterized at concentrations as low as approx. 0.25 in diesel fuels. Various analytical approaches for characterizing alkenes in diesel fuels are also explored, including 1 chromatographic separation of the alkene fraction in diesel fuels by AgNO3 impregnated chromatographic columns, and 2 a 19F NMR tagging method characterizing alkenes. Finally, a calculative method for conversion of LC-1H NMR molar data to weight data for each chromatographic fraction in a fuel is described.
- Physical Chemistry