Impact of 50% Alcohol to Jet Blends on Aviation Turbine Fuel Filtration and Coalescence
NAVAL AIR SYSTEMS COMMAND PATUXENT RIVER MD FUELS AND LUBRICANTS DIV
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In October 2009, Secretary of the Navy Ray Mabus directed the Navy to decrease its reliance on fossil fuels. The Secretary set a goal of operating with at least 50 of energy consumption coming from alternative sources by 2020. He also set forth the goal of demonstrating a Great Green Fleet, operating on 50 alternative fuel, by 2012 and deploying by 2016. The use of alternativepetroleum sourced aviation fuel blends is a critical component to achieving these goals. Alcohol to Jet ATJ fuels is an alternative sourced aviation fuel that is currently being evaluated. ATJ fuels are synthetic paraffin fuels produced from alcohols isobutanol or n-butanol. Sugars, corn, grasswoodbiomass, and power plantindustrial CO2 are all potential ATJ feedstocks. ATJ fuels are comprised of a mixture of C8, C12, C16, and C20 paraffins. The degree of branching is dependent on the alcohol starting material used. ATJ had no negative impacts on filter separator performance and did not disarm coalescer or separator media when blended with JP-5 at a 11 by volume ratio as evident by satisfactory compliance with sediment removal, water removal, and differential pressure performance criteria defined in section 3.6 of MIL-PRF-32148 and sections 3.1.1a b, 184.108.40.206, and 220.127.116.11 of EI 1581 5th Edition. It is recommended that 5050 ATJ fuel blends be approved for use with EI 1581 5th edition Category M and MIL-PRF-32148 qualified filter separators.
- Industrial Chemistry and Chemical Processing