The Horizon Europe-funded TITAN project, in cooperation with the European Biogas Association, has successfully validated a novel direct biogas conversion technology as it nears the conclusion of its 48-month research cycle. Operating with a budget of nearly €3 million, the project achieved Technology Readiness Level 5 (TRL 5), demonstrating stable execution under conditions representative of real-world gas streams. The initiative establishes a technological framework for converting raw biogas into high-purity renewable hydrogen and stable solid carbon materials. According to the strategic project roadmap, this validated approach could enable the production of up to 0.6 million tonnes of hydrogen per year by 2030, eventually scaling to nearly 4 million tonnes annually from 2045 onward.

Decarbonizing highly resilient, carbon-intensive economic sectors while expanding the regional supply of renewable energy carriers presents critical operational difficulties across Europe. Specifically, hard-to-abate sectors such as heavy industry, transport, and agriculture face severe challenges in reducing greenhouse gas emissions to meet climate neutrality mandates. Concurrently, the transition to a hydrogen economy is constrained by the substantial electricity demands and high production costs associated with conventional water electrolysis. Furthermore, existing gas processing infrastructures typically require multiple intensive treatment and separation steps to isolate individual components from raw biogas, which introduces severe systemic inefficiencies and limits the economic viability of small-scale distributed operations.

The TITAN project addresses these systemic bottlenecks by developing a specialized, scalable microwave-heated catalytic reactor that combines multiple reaction phases within a single consolidated step. This modular process utilizes targeted microwave energy to drive the direct cracking of biogas, yielding a hydrogen-rich gas and a solid iron-carbon matrix without requiring complex post-treatment gas separation. Rigorous environmental assessments confirmed that the resulting solid carbon material induces no significant negative side effects on soil microorganisms or fauna. Furthermore, carbon-tracing analysis verified extremely limited decomposition in agricultural soil applications, confirming the product’s high technical capability for permanent, long-term terrestrial carbon storage.

Large-scale economic evaluations indicate that this single-step microwave configuration offers superior performance outcomes compared to conventional electrolysis pathways. The reactor achieved stable methane conversion rates exceeding 85%, producing between 51 and 57 grams of hydrogen per kilowatt-hour of electricity consumed, which is significantly higher than the 20 grams per kilowatt-hour typically generated via water electrolysis. Economic modeling estimates large-scale hydrogen production costs at approximately €4.5 per kilogram, falling to €3.9 per kilogram in regions with low-cost electricity. Projections indicate that the widespread commercial deployment of this infrastructure could deliver cumulative greenhouse gas savings of up to 237 million tonnes of carbon dioxide emissions by 2045.