01-04-2025

Electric tri-converter demo results a breakthrough for Aether Aurora™ SAF solution

Aether Fuels (Aether), a sustainable fuels technology company, today reported exciting demonstration results for the electric Tri-Converter technology embedded in its proprietary Aether Aurora solution which aims to transform the economics of sustainable fuels and accelerate large-scale deployment. This electric Tri-Converter demonstration has a capacity that is more than 50 times larger than the previously demonstrated pilot plant. The results represent a breakthrough for sustainable aviation fuel (SAF) production. 

The electric Tri-Converter converts waste carbon feedstocks into the syngas that supplies the downstream Fischer-Tropsch (FT) unit in the Aether Aurora process. The purpose of the demo was to prove that the electric Tri-Converter can continuously produce syngas at an increasingly larger scale using a mix of real-world feedstocks, including biogenic CO₂, renewable natural gas (RNG), and green hydrogen. The program is part of Aether’s program to build and operate a fully integrated demonstration plant (the “Demo Plant”) producing more than one barrel per day of sustainable fuels. Aether plans to complete the construction of the Demo Plant later this year.

The demonstrator is a joint project between Aether and GTI Energy. Aether Aurora integrates technology elements first developed by GTI Energy in a gas-to-liquids program, which is supported by grants from the U.S. Department of Energy (DOE). Aether has licensed the relevant technologies from GTI Energy and leverages the laboratory and demonstration spaces at its Chicago-area campus. Aether has subsequently taken over responsibility for future Aether Aurora development and commercialisation, including expanding its R&D team.

The results of the demonstrator validate that the electric Tri-Converter is ready for integration into the Demo Plant. More critically, they demonstrate the solution’s capability to use a wide range of abundant feedstocks to create sustainable fuels - a breakthrough that can potentially shatter a key barrier to scaling production.

This milestone was celebrated yesterday at the Aether and GTI Energy demonstrator site where Aether investors and feedstock executives joined federal, state and local officials to view the technology, meet the team, tour Aether’s R&D center and GTI Energy lab spaces, and learn how the innovations will accelerate the transition to sustainable fuels. State Senator Laura Murphy (IL-28th) was on hand to deliver opening remarks.

The Syngas Generation Engine for Next-Gen Sustainable Fuels

Aether Aurora optimizes the well-established FT process to create drop-in liquid hydrocarbons leveraging its novel electric Tri-Converter and Upgrading technologies. As the solution’s “syngas generation engine”, the electric Tri-Converter improves and streamlines the process where feedstocks and the internally recycled downstream byproducts are converted into syngas. This is achieved via novel catalysts and a reactor that uses electricity instead of combustion to generate the reaction heat. Where typical syngas production requires multiple reactors to convert the same mix of inputs, Aether Aurora employs just one. The streamlined equipment configuration reduces CAPEX while the electrification innovations generate higher energy efficiency and yields than a conventional combustion reactor.

Aether’s demonstrator is supported by suppliers that include bp for RNG, Invenergy for clean hydrogen production, and Certarus Ltd for low carbon energy supply and logistics.

State Senator Murphy remarked: “The road to the future is paved in sustainable practices, and GTI Energy and Aether Fuels are at the forefront of this future. They are leading the way in developing energy solutions that will transform how we power industries, transportation and everyday life. Their innovation not only drives us forward, it drives economic growth that supports every hardworking Illinoisan.”

Aether CEO, Conor Madigan, said: “This is an exciting milestone for Aether and a tribute to our R&D experts and our partners at GTI Energy. The aviation and ocean shipping industries need affordable sustainable fuels at scale and the electric Tri-Converter technology is a transformative step forward. It drives critical process simplification and enables cost-efficient feedstock flexibility.  When integrated into our Aether Aurora solution we’re making SAF production more scalable and cost effective.”

GTI Energy’s VP of Carbon Management and Conversion, Don Stevenson, said: “GTI Energy has a long history of pioneering advanced energy solutions, and we’re proud to see technologies incubated in our labs being integrated into solutions for scaling low-emission fuels. Through collaboration with DOE and companies like Aether Fuels, GTI Energy helps unlock the potential of waste carbon streams while creating economically viable fuels solutions for industries.”

Elie Fayad, Aether’s Senior Director of R&D, noted: "Today’s milestone represents nearly a decade of dedicated innovation and significant R&D investment by GTI Energy and Aether Fuels. The electric Tri-Converter is one of the breakthroughs in our Aether Aurora solution that drastically improves SAF economics and brings large-scale deployment within reach.”

Aether Aurora is trademarked by Aether Fuels.