Evaluation of performance variables to accelerate the deployment of sustainable aviation fuels at a regional scale

Article Thermodynamics

Recent advancements in catalytic conversion pathways for synthetic jet fuel produced from bioresources

Brandon Han Hoe Goh et al.

Summary: This study reviews technologies and catalysts for producing synthetic jet fuels, as well as the use of biomass resources as feedstock. It discusses the production process and challenges for uncertified biojet fuels.

ENERGY CONVERSION AND MANAGEMENT (2022)

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Article Energy & Fuels

Conversion of waste to sustainable aviation fuel via Fischer-Tropsch synthesis: Front-end design decisions

Natalia Montoya Sanchez et al.

Summary: Front-end design decisions for producing sustainable aviation turbine fuel from waste materials were presented. The design utilizes distributed conversion of waste to oil, which is then transported to a central facility for gasification, syngas cleaning, Fischer-Tropsch synthesis, and refining. The evaluation of different aspects of the front-end design employed case studies, calculations, experimental investigations, and literature review.

ENERGY SCIENCE & ENGINEERING (2022)

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Article Green & Sustainable Science & Technology

CORSIA: The first internationally adopted approach to calculate life-cycle GHG emissions for aviation fuels

Matteo Prussi et al.

Summary: The aviation sector's significant growth has led to concerns about its impact on climate change, prompting the establishment of CORSIA by ICAO to reduce greenhouse gas emissions. A methodology for evaluating the life-cycle emissions of sustainable aviation fuels (SAFs) has been agreed upon by 193 ICAO member states, highlighting SAFs' potential in reducing aviation's carbon footprint.

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2021)

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Article Energy & Fuels

Fischer-Tropsch Synthesis as the Key for Decentralized Sustainable Kerosene Production

Andreas Meurer et al.

Summary: Synthetic fuels are crucial in defossilizing future aviation transport, and decentralized on-site production of synthetic kerosene can significantly reduce ecological impacts. The Fischer-Tropsch synthesis plays a key role in the power-to-liquid process, demonstrating flexibility in product fraction output for decentralized kerosene production.

ENERGIES (2021)

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Review Energy & Fuels

Qualification of Alternative Jet Fuels

Mark A. Rumizen

Summary: The commercial aviation industry has traditionally relied on well-proven conventional fuels for aircraft operation. With the introduction of drop-in jet fuel produced from non-petroleum feedstocks, the ASTM International Aviation Fuel Subcommittee has developed new standards to evaluate and control the quality and performance of these alternative fuels. This framework builds upon industry consensus-based fuel specifications to ensure that new fuels are essentially identical to petroleum derived jet fuels.

FRONTIERS IN ENERGY RESEARCH (2021)

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Article Multidisciplinary Sciences

Toward net-zero sustainable aviation fuel with wet waste-derived volatile fatty acids

Nabila A. Huq et al.

Summary: The paper evaluates the catalytic conversion of food waste-derived VFAs to produce n-paraffin SAF for near-term use as a 10 vol% blend for ASTM Fast Track qualification and produce a highly branched, isoparaffin VFA-SAF to increase the renewable blend limit. VFA ketonization models assessed the carbon chain length distributions suitable for each VFA-SAF conversion pathway, and food waste-derived VFA ketonization was demonstrated for >100 h of time on stream at approximately theoretical yield. Fuel property blending models and experimental testing determined normal paraffin VFA-SAF meets 10 vol% fuel specifications for Fast Track. Synergistic blending with isoparaffin VFA-SAF increased the blend limit to 70 vol% by addressing flashpoint and viscosity constraints, with sooting 34% lower than fossil jet. Techno-economic analysis evaluated the major catalytic process cost-drivers, determining the minimum fuel selling price as a function of VFA production costs. Life cycle analysis determined that if food waste is diverted from landfills to avoid methane emissions, VFA-SAF could enable up to 165% reduction in greenhouse gas emissions relative to fossil jet.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2021)

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Article Thermodynamics

Biojet fuel production from oleaginous crop residues: thermoeconomic, life cycle and flight performance analysis

Nicolas Vela-Garcia et al.

Summary: By utilizing different thermochemical routes for biojet fuel production, simulations showed differences between the ATJ and HEFA processes in terms of biojet fuel production rate, GHG emissions, and selling price. Both routes met the requirements for producing qualified biojet fuels.

ENERGY CONVERSION AND MANAGEMENT (2021)

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Article Agricultural Engineering