Assessment of the Effectiveness of Post-Refinery Antioxidant Additions to Jet A Fuel
Abstract
This study was conducted in support of the Air Force Jet A initiative to deploy commercial Jet A as a "drop in" replacement for MIL-SPECJP-8 fuel. The effectiveness of antioxidant additives when added to additive-free Jet A fuel at either point of use or at delivery was evaluated through thermal stressing of hydrotreated Jet A fuels at 90 deg C under 100 psig oxygen for up to 96 hours in accordance with ASTM D5304 (low pressure reactor, LPR). Hydroperoxide concentrations did not exceed the limit of 8 ppm (1 meq/kg) in two hydrotreated Jet A fuels and 14CONUS Jet A fuels after 16 hours of LPR stress. This was taken as an indication that these fuels would be stable in ambient storage for at least two years without added antioxidants. The findings also indicated that there may be some decrease in storage and possibly thermal stability with the addition of the JP-8 additive package, consisting of a corrosion inhibitor, antistatic additive and the fuel system icing inhibitor, to Jet A fuel. While these results indicate that Jet A fuels can be stored without antioxidants, it was recommended that antioxidant-free fuels in storage be periodically checked for hydroperoxide formation.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 14, 2011
- Accession Number
- AD1108737
Entities
People
- Janet M. Hughes
- Kristina M. Myers
- Nathan J. Begue
- Robert E. Morris
Organizations
- United States Naval Research Laboratory