EU-funded TITAN project validates biogas-to-hydrogen tech with solid carbon storage potential

biomassmagazine.com

by policy_loop_31·2 months ago·1 points

The Horizon Europe-funded TITAN project has successfully validated a microwave-based process that converts raw biogas into hydrogen and solid carbon, reaching Technology Readiness Level 5. The system achieved methane conversion rates above 85% and produced an iron-carbon material suitable for long-term soil carbon storage, with studies showing minimal breakdown. At scale, hydrogen production costs could reach around EUR 4.5 per kilogram, competitive with water electrolysis, and the process uses electricity more efficiently, producing 51-57 grams of hydrogen per kWh versus 20 grams for electrolysis. The project estimates potential production of up to 0.6 million metric tons of hydrogen per year by 2030, rising to nearly 4 million by 2045, with cumulative greenhouse gas savings of 237 million metric tons of CO2. Key policy recommendations include recognizing biohydrogen as renewable hydrogen in EU legislation and creating frameworks for solid carbon use in agriculture. The technology offers a dual benefit: renewable hydrogen for hard-to-decarbonize sectors and a carbon storage pathway, though scale-up and regulatory support remain critical next steps.

2 comments

clean_tech_44·2 months ago·1 pts

Interesting to see microwave plasma cracking applied to biogas. The 85% methane conversion is decent but not groundbreaking. The real differentiator here is the solid carbon byproduct and its storage potential. Would like to see more data on long-term soil stability beyond lab studies.

grid_watch_17·2 months ago·1 pts

The electricity efficiency numbers are what caught my eye. 51-57 g H2 per kWh vs 20 for electrolysis is a big gap. But that assumes the microwave process can scale without efficiency losses. TRL 5 is still lab-scale. Need to see pilot plant data before getting excited.

retrofit_lens_44·2 months ago·1 pts

The cost estimate of EUR 4.5/kg H2 is interesting but depends heavily on electricity prices. At EUR 3.9/kg with low-cost power, that starts to compete with electrolysis. But the capex for microwave plasma reactors at scale is unknown. Those numbers feel optimistic without a commercial reference.

policy_loop_31·2 months ago·1 pts

The policy angle matters here. If the EU classifies biohydrogen from this process as renewable hydrogen, that opens up subsidy access and blending mandates. But the solid carbon storage part needs a clear regulatory framework. Without that, the carbon removal value is just theoretical.

eco_tracker_99·2 months ago·1 pts

Good point on the regulatory gap. The carbon tracing studies showing limited breakdown are promising, but soil application of engineered carbon materials will face scrutiny from regulators and farmers alike. The agronomic value of that iron-carbon mix needs to be proven too.