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Understanding SAF Production and Certification

Aug 23, 2024

Technical Training Session: SAF Production Technologies and Certification

Welcome and Introduction

  • Jane Hoopy, Director of IKEA Environment Program, welcomed participants.
  • Highlighted the need to address knowledge gaps in SAF implementation among participating states.
  • Acknowledged participation from Asia Pacific region despite time differences.
  • Session Focus: Understanding Aviation Turbine Fuel (ATF) specifications, new fuel production pathways, and certification processes.
  • Featured Speakers: Mr. Ross Walker (Airbus), Mr. Markham Hussein (U.S. Federal Aviation Administration), and Mr. Nicolas Sturland (Safra).

Overview of Aviation Turbine Fuel (ATF)

  • ATF and Jet Fuel Definitions

    • ATF is also known as Jet A or Jet A1 fuel.
    • Key specifications: ASTM d1655 and Def Stan 091/091.
    • Composed of paraffins, naphthenes, and aromatics.
  • Production of ATF

    • Derived from crude oil, differing in sulfur content and viscosity.
    • Various processes used to synthesize fuels from non-petroleum sources.

SAF: Synthetic Aviation Turbine Fuels

  • First approved non-petroleum ATF in 1999 via Fischer-Tropsch process.
  • ASTM D4054 and D7566 documents guide approval and certification.
  • Seven approved pathways using various feedstocks and processes.
  • Blending requirements to ensure safety and performance matching Jet A fuel.

Certification Process and Evaluation

  • Process Overview

    • ASTM D4054 evaluation process ensures new fuels match existing Jet A fuel.
    • Involves rigorous testing and industry reviews.
  • ASTM D7566 Specification

    • Details synthetic blend components and blending ratios.
    • Fuels must meet ASTM D1655 to be flight-approved.

Challenges and Future Directions

  • 100% SAF Certification

    • Current challenge: developing specifications for 100% SAF.
    • Exploring fully formulated SAF and blending aromatic components.
  • Efficiency of Certification Process

    • Enhancing understanding of fuel impacts on aircraft systems.
    • Role of Clearinghouses in supporting producers through certification.

Conclusion and Future Outlook

  • Continual work towards expanding certified pathways and developing 100% drop-in SAF.
  • Upcoming session on March 23rd: SAF Market Outlook and Policies.
  • Encouragement for feedback to improve training sessions.