Suitability of a radical based method for assessment of jet fuel antioxidant capacity and projected storage stability

Rawson, P, Stansfield, C, Creek, J, Webster, R and Evans, D 2017, 'Suitability of a radical based method for assessment of jet fuel antioxidant capacity and projected storage stability', Fuel, vol. 199, pp. 497-503.


Document type: Journal Article
Collection: Journal Articles

Title Suitability of a radical based method for assessment of jet fuel antioxidant capacity and projected storage stability
Author(s) Rawson, P
Stansfield, C
Creek, J
Webster, R
Evans, D
Year 2017
Journal name Fuel
Volume number 199
Start page 497
End page 503
Total pages 7
Publisher Elsevier
Abstract Jet fuel stability is an important fuel property for management of fuel in storage. A method for predicting jet fuel stability, based on the colourimetric reaction of the stable free radical 2,2-diphenyl-1-picrylhydrazyl (DPPH) has been examined in this work. A range of jet fuels of known and unknown refining history, including a range of antioxidant compounds have been examined using the DPPH assay with mixed results. It was found that the DPPH technique responds predictably with a range of phenolic species however was less predictable with jet fuels of unknown provenance. Little to no correlation was observed when comparing unknown fuels storage stabilities based on oxidative and peroxide formation tests against the DPPH assay, however a good correlation was observed for fuels of known refining history for these same storage stability tests. The wide variation of results may in part be due to the very complex reaction mechanisms of DPPH with species in the fuels and due to the inherent chemical complexity of middle distillate fuels that may have undergone ageing reactions in storage prior testing with the DPPH assay.
Subject Non-automotive Combustion and Fuel Engineering (incl. Alternative/Renewable Fuels)
Keyword(s) 2
2-Diphenyl-1-picrylhydrazyl
Antioxidant capacity
DPPH
Jet fuel oxidative stability
DOI - identifier 10.1016/j.fuel.2017.02.054
Copyright notice © 2017 Elsevier Ltd
ISSN 0016-2361
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