Storage Stability of Jet Fuel Not Containing Anti-Oxidant (AO)

Abstract

This program assessed the effectiveness of adding anti-oxidant (AO) to various fuels after the fuels leave the refinery. The project involved storing severely hydro-treated fuels for a period of 12 months to simulate the 36 month storage period for vehicles and equipment aboard pre-positioned ships. One fuel contained AO from the refinery and an additional fuel was procured without AO added at the refinery. Each fuel was divided in half with one half being stored as received at 43C and the second half treated with the JP-8 additive package and stored at 43C. The fuel without the AO had AO added upon receipt at TFLRF. A third fuel was added to the matrix that was provided from Australia. This fuel was thought to exhibit poor storage stability characteristics. As with the other fuels, this fuel was divided into two portions with one stored as received and the other additized with the JP-8 additive package and stored at 43C. 15. SUBJECT TERMS Acid Number Peroxide Number ASTM D3241 at 260C ASTM D3241 Breakpoint 16. SECURITY CLASSIFICATION OF: 17. LIMITATION OF ABSTRACT 18. NUMBER OF PAGES 19a. NAME OF RESPONSIBLE PERSON a. REPORT

Effect of Reactive Sulfur Removal by Activated Carbon on Aviation Fuel Thermal Stability

“…Hydroperoxides are primary autoxidation products but also are found at micromolar concentrations in Jet A-1 during the storage period . There is no general consensus in the literature to define a maximum admissible concentration for hydroperoxides in jet fuels; we found only one report which refers to an informal maximum level of hydropeoxides in jet fuel as 8 ppm (the military specification peroxide limit). However, it is known that the formation of hydroperoxides during the fuel storage period is an inevitable slow process.…”

Additive Effectiveness Investigations in Alternative Fuels

“…It is worth noting that these additives may also have an effect on storage stability. In the ongoing program to convert CONUS to Jet A, work conducted by SwRI [12] and by the Naval Research Laboratory (NRL) [13] suggested that the standard JP8 additive package may be a hindrance to storage stability.…”