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Dual Action Additives for Jet A-1: Fuel Dehydrating Icing Inhibitors

Repetto, Sonia L.; Lam, Joseph K.W.; Repetto, Sonia; Patel, Rishi; Johnson, Tim; Lam, J-KW; Costello, James F.; Chuck, Christopher J.

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Authors

Sonia L. Repetto

Joseph K.W. Lam

Sonia Repetto

Rishi Patel

Tim Johnson

J-KW Lam

Christopher J. Chuck



Abstract

© 2016 American Chemical Society. A novel approach for protecting jet fuel against the effects of water contamination based upon Fuel Dehydrating Icing Inhibitors (FDII) is presented. This dual-action strategy is predicated on the addition of a fuel-soluble water scavenger that undergoes a kinetically fast hydrolysis reaction with free water to produce a hydrophilic ice inhibitor, thereby further militating against the effects of water crystallization. Criteria for an optimum FDII were identified and then used to screen a range of potential water-scavenging agents, which led to a closer examination of systems based upon exo/endo-cyclic ketals and both endo- and exo-cyclic ortho esters. The ice inhibition properties of the subsequent products of the hydrolysis reaction in Jet A-1 were screened by differential scanning calorimetry. The hydrolysis products of 2-methoxy-2-methyl-1,3-dioxolane demonstrate similar ice inhibition performance to DiEGME over a range of blend levels. The calorific values for the products of hydrolysis were also investigated, and it is clear that there would be a significant fuel saving on use of the additive over current fuel system icing inhibitors. Finally, three promising candidates, 2-methoxy-2-methyl-1,3-dioxolane, 2-methoxy-2-methyl-1,3-dioxane, and 2-methoxy-2,4,5-trimethyl-1,3-dioxolane, were shown to effectively dehydrate Jet A-1 at room temperature over a 2 h period.

Citation

Lam, J. K., Repetto, S. L., Repetto, S., Patel, R., Johnson, T., Costello, J. F., …Chuck, C. J. (2016). Dual Action Additives for Jet A-1: Fuel Dehydrating Icing Inhibitors. Energy and Fuels, 30(11), 9080-9088. https://doi.org/10.1021/acs.energyfuels.6b01727

Journal Article Type Article
Acceptance Date Aug 22, 2016
Online Publication Date Oct 12, 2016
Publication Date Nov 17, 2016
Deposit Date Sep 5, 2016
Publicly Available Date Oct 12, 2017
Journal Energy and Fuels
Print ISSN 0887-0624
Electronic ISSN 1520-5029
Publisher American Chemical Society
Peer Reviewed Peer Reviewed
Volume 30
Issue 11
Pages 9080-9088
DOI https://doi.org/10.1021/acs.energyfuels.6b01727
Keywords fuel, dehydrating, icing inhibitors
Public URL https://uwe-repository.worktribe.com/output/922627
Publisher URL http://dx.doi.org/10.1021/acs.energyfuels.6b01727
Additional Information Additional Information : This document is the Accepted Manuscript version of a Published Work that appeared in final form in Energy and Fuels, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://dx.doi.org/10.1021/acs.energyfuels.6b01727

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