Topsoe and Sasol have signed technology licensing and engineering agreements with Swedish project developer Alby PtX for its planned synthetic sustainable aviation fuel (e-SAF) facility in Alby, Sweden. The integrated G2Lâ„¢ e-fuels technology is intended to support annual production of approximately 66,000 tons of e-SAF using renewable hydrogen and captured carbon dioxide.
Under the agreements, Topsoe and Sasol will act as Single Point Licensor, providing an integrated technology package covering synthesis gas generation, Fischer-Tropsch synthesis and hydroprocessing. The configuration combines Topsoe’s eREACTâ„¢ electrified reverse water-gas shift technology and hydroprocessing systems with Sasol’s low-temperature Fischer-Tropsch (LTFTâ„¢) technology.
The facility is being developed in Alby, within Sweden’s Ã…nge Municipality. Its planned Power-to-Liquid (PtL) process will use renewable electricity to produce hydrogen through water electrolysis. The hydrogen will then react with captured carbon dioxide to generate synthesis gas, which will be converted into synthetic hydrocarbons and subsequently upgraded into aviation fuel.
Topsoe and Sasol Combine Technologies for e-SAF Production
The G2Lâ„¢ e-fuels configuration integrates several conversion stages to produce synthetic aviation fuel from renewable electricity, water and captured carbon dioxide.
Topsoe’s eREACTâ„¢ technology uses electrification to drive the reverse water-gas shift reaction, producing synthesis gas from hydrogen and carbon dioxide. This provides the intermediate gas mixture required for Fischer-Tropsch synthesis.
Sasol’s LTFTâ„¢ technology converts carbon monoxide and hydrogen into longer-chain hydrocarbons through catalytic Fischer-Tropsch synthesis. Topsoe’s hydroprocessing technology subsequently upgrades these hydrocarbons into finished synthetic fuels, including aviation fuel.
The technology selection is intended to prioritise e-SAF production rather than maximise the output of separate hydrocarbon co-products.
A key feature of the configuration is its treatment of naphtha and other hydrocarbon streams. Rather than recovering all these fractions as separate products, the process can recycle suitable streams into the production system for further conversion. This is intended to increase the proportion of available carbon directed towards aviation fuel.
The integrated configuration is also designed to manage renewable hydrogen and electricity consumption efficiently, improving the utilisation of renewable resources and captured carbon throughout the production process.
Alby PtX Advances Its Swedish e-SAF Project Towards FEED
The technology agreements provide the process design and engineering packages required to integrate the different production stages. These packages will support the front-end engineering design (FEED) phase, during which the plant’s technical configuration and engineering requirements will be developed further.
Separately, Alby PtX announced on 10 November 2026 that it had awarded the FEED contract to Spanish engineering company Técnicas Reunidas. The contractor will be responsible for integrating the engineering design of the entire production process.
The FEED phase is expected to refine the plant design, project scope, cost estimates and implementation schedule, providing the technical and commercial basis for a final investment decision (FID).
The potential next stage would involve an engineering, procurement and construction (EPC) contract. However, construction and project execution remain dependent on a positive FID and subsequent contractual arrangements.
Alby PtX is jointly owned by Norwegian Power-to-Liquid developer Norsk e-Fuel and investment manager Prime Capital, with support from renewable energy developer RES.
G2Lâ„¢ Technology Targets Higher Aviation Fuel Output
The G2Lâ„¢ e-fuels solution combines Topsoe’s electrified synthesis gas generation and hydroprocessing technologies with Sasol’s commercially established Fischer-Tropsch process.
The integrated design allows the production configuration to be adjusted according to the desired fuel output. For the Alby project, the priority is to maximise the production of synthetic aviation fuel while making efficient use of renewable hydrogen, electricity and captured carbon dioxide.
The project adds another potential commercial-scale application for the technology partnership between Topsoe and Sasol. Their collaboration brings together expertise in synthesis gas production, Fischer-Tropsch conversion and fuel upgrading for the development of synthetic fuels.
For Alby PtX, securing the process technology and engineering integration represents an important step towards advancing the proposed Swedish facility. The project’s progress will now depend on completing the engineering work, establishing its investment requirements and reaching a final investment decision.
Related: engineering contract for the same Alby PtX e-SAF project
