Abstract: | Abstract Three middle distillate fuels originating from New Zealand, Venezuela, and Texas were studied to determine the nitrogen compound distribution in each fuel. Organo-nitrogen compounds in the fuels were isolated by mild acid extraction followed by silica gel adsorption. The extraction scheme yielded three extracts for each fuel—a basic nitrogen extract in methylene chloride, a non-basic nitrogen extract in methyl alcohol, and a non-basic nitrogen extract in methylene chloride. The major constituents of each extract were identified by gas chromatography/mass spectrometry (GC/MS). |