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SPK Blend Component Specifications for Aviation Fuel

Learn about the key specifications for Synthetic Paraffinic Kerosene (SPK) blend components and their compliance requirements for aviation fuel. Includes details on composition, stability, and other considerations.

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SPK Blend Component Specifications for Aviation Fuel

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  1. D1655 vs. D 7566 Specification Overview Joseph Sorena 11/3/2011

  2. D7566 Structure

  3. Synthetic Paraffinic Kerosene (SPK) blend components • FT SPK Table A1.1 • Lower total acid • T90-10 Min • Thermal Stability Limit Temperature Elevated to 325 C. • Anti-Oxidant Required (17 min 24 mg/L max) • Cycloparaffin 15 Mass % Max • Aromatics 0.5 Mass % Max • Carbon & Hydrogen 99.5% Min • Nitrogen 2 ppm Max • Water 75 ppm Max • Sulfur 15 ppm Max • Metals 0.1 ppm Max • Halogens 1 ppm Max • HEFA Table A2.1 • All requirements as A1.1 plus • Fame less than 5 ppm

  4. Other considerations D7566 • 50 vol % blend max of SPK with Conventional Jet • With respect to ASTM the fuel will be distributed and handled as 1655 once blended and released. • Additives are the same approved for D1655 • Synthetic Aromatics Feedstocks outside of Scope of D7566 • Alcohol to Jet • Pyrolysis oils

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