Detection and Identification of Sulfur Compounds in an Australian Jet Fuel
DEFENCE SCIENCE AND TECHNOLOGY ORGANISATION VICTORIA (AUSTRALIA) AIR VEHICLES DIV
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Jet fuel contains a wide range of sulfur compounds that affect the properties and performance of the fuel in a number of ways, including corrosion of uncoated metals, effects on fuel lubricity, and on both thermal and storage stability properties. All of these properties are ongoing concerns for the ADF. Jet fuel used by the ADF has its sulfur content controlled through specification DEFAUST 5240, however, sulfur compounds other than thiols are not controlled by chemical class. A range of methods to isolate, identify and speciate sulfur compounds in fuel were examined and used to elucidate the types of sulfur compounds found in a representative fuel. Methods for isolation of thiols, sulfides, thiophenes and condensed thiophenes were successfully performed. These methodologies are now available for further characterisation of sulfur compounds to assist in ongoing issues of corrosion and stability in ADF jet fuels.