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The Decline And Recovery Of Thermal Oxidative Stability Of Ultra-Low Sulfur Diesel Blends, Abigail Schoor Cohen
The Decline And Recovery Of Thermal Oxidative Stability Of Ultra-Low Sulfur Diesel Blends, Abigail Schoor Cohen
Electronic Theses and Dissertations
Dissertation supervised by Professor Bruce D. Beaver
The oxidative stability of ultra-low sulfur diesel (ULSD) has generally been expected to continuously decline over time. However, recent studies have suggested that it may fluctuate.1-2 In this study, the oxidative stability of stored commercially purchased ULSD was monitored with a methanol extraction method.3 In this methodology, proposed by Hardy and Wechter, fuel blends are extracted with methanol before and after thermal stressing.4 The methanol-soluble layer contains the oxygenated and oxidizable components of the fuel (SMORS) and the change in this mass upon stressing thus represents the oxidative stability of …