Abstract
ABSTRACT A high paraffin, high nitrogen, low sulfur jet fuel derived from Athabasca tar sands was studied. The organo-nitrogen compounds in the fuel were isolated by mild acid extraction followed by silica-gel adsorption. Three extracts were derived from this fuel: a basic nitrogen compounds extract, BNC, in methylene chloride, a non-basic nitrogen compounds extract, NBNC, in methyl alcohol and an NBNC extract in methylene chloride. The major constituents of each extract were identified and quantitated by combined capillary column GC/MS. Alkyl substituted pyrroles, pyridines, indoles, tetrahydro-quinolines, carbazoles, and quinolines were the prevalent organo-nitrogen compounds present. Incompatibility tests were conducted on this fuel using the oxygen overpressure method with both doped and undoped fuel systems. The dopant of choice was cumene hydroperoxide. Practically no sediment formation was observed for the undoped fuel (0.1 mg/100mL fuel). The doped fuel matrix induced incompatibility behavior in proportion to the quantity of dopant present.
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