BioH2Steel

Biomass-based H2 for Sustainable Steel Production

This research is funded by CETPartnership, the Clean Energy Transition Partnership under the 2024 joint call for research proposals, co-funded by the European Commission (GA N° 101069750) and with the funding organisations detailed on cetpartnership.eu/funding-agencies-and-call-modules.

Project Overview

BioH2Steel addresses the urgent need to decarbonize steel production by integrating biomass-based hydrogen generation with direct reduction of iron ore.

The Challenge

Steel production is responsible for approximately 7% of global CO2 emissions. The conventional blast furnace route relies heavily on fossil coal and coke, making it one of the most carbon-intensive industrial processes. Transitioning to sustainable steel production is essential for meeting the EU's climate targets.

Our Approach

BioH2Steel investigates the integration of biomass and waste-based sorption-enhanced gasification (SEG) with the Direct Reduction of Iron (DRI) process. By producing hydrogen-rich synthesis gas from sustainable biomass sources, the project aims to replace fossil-based reducing agents in steel production.

The project addresses CETPartnership Challenges 2 (Renewable Fuels & Bioenergy) and 3 (Enabling Technologies & Solutions), bridging the gap between renewable energy generation and hard-to-abate industrial sectors.

Innovation Pathway

Starting from proven gasification technology at TRL 4-5, BioH2Steel targets advancement to TRL 6/7 through pilot-scale demonstration. The project combines torrefaction pre-treatment, oxy-sorption-enhanced gasification, advanced gas cleaning, and DRI process modelling to create a complete value chain from biomass to green steel.

Process flow diagram: biomass and waste enter Drying & Torrefaction, then the Oxy-SEG dual reactor (Gasifier and Combustor with CaO/CaCO3 loop), producing H2-rich syngas for the DRI furnace and CO2-rich flue gas for CO2 cracking to solid carbon.
BioH2Steel process flow: From biomass gasification to sustainable steel production
~7% of global CO2 emissions from steel production
TRL 6/7 Target technology readiness level
>60% H2 content in synthesis gas
>90% CO2 separation efficiency

Objectives

Ten interconnected objectives guide our research from biomass pre-treatment through to lifecycle assessment and scale-up strategies.

1

Torrefaction Pre-treatment

Develop and optimize torrefaction processes for biomass and waste feedstocks to improve gasification performance and feedstock flexibility.

2

Oxy-Sorption-Enhanced Gasification (oxy-SEG)

Advance oxy-sorption-enhanced gasification technology to produce hydrogen-rich synthesis gas with high efficiency from torrefied biomass.

3

Gas Cleaning & Conditioning

Develop advanced gas cleaning systems to meet the stringent purity requirements for DRI applications and downstream processes.

4

DRI Process Modelling

Create comprehensive process models for the integration of biomass-derived synthesis gas with Direct Reduction of Iron technology.

5

CO2 Capture & Cracking

Achieve >90% CO2 separation efficiency and investigate catalytic CO2 cracking for carbon utilization pathways.

6

Pilot-Scale Demonstration

Demonstrate the integrated BioH2Steel process at pilot scale, advancing the technology from TRL 4-5 to TRL 6/7.

7

Heat Recovery & Integration

Optimize heat recovery systems and thermal integration between gasification, gas cleaning, and DRI processes to maximize energy efficiency.

8

By-Product Valorization

Develop strategies for the reuse and valorization of process by-products including biochar, tars, and mineral residues.

9

Scale-up Strategy

Develop a comprehensive scale-up roadmap from pilot to industrial scale, including techno-economic analysis and market assessment.

10

Life Cycle Assessment

Conduct full lifecycle assessment comparing BioH2Steel pathways with conventional and alternative steel production routes.

Expected Outcomes

BioH2Steel will deliver measurable advances across eight key areas, contributing to the clean energy transition in hard-to-abate industries.

H2 Technologies

  • Validated biomass-to-hydrogen pathway via oxy-sorption-enhanced gasification
  • Synthesis gas with >60% H2 content from sustainable feedstocks
  • Integrated gas cleaning meeting DRI-grade purity specifications
  • Process data for scaling hydrogen production from biomass sources

Energy Efficiency

  • Optimized heat recovery between gasification and DRI processes
  • Reduced energy consumption through thermal integration
  • Torrefaction-enhanced feedstock reducing downstream energy demand
  • Process simulation models for energy-optimized plant design

Renewable Energy Integration

  • Proven pathway for renewable biomass in steel production
  • Flexible feedstock concepts enabling diverse biomass sources
  • Integration strategies for coupling with renewable electricity
  • Contribution to CETPartnership Challenge 2 objectives

Circularity & CCU

  • CO2 capture and catalytic cracking for carbon utilization
  • By-product valorization strategies for biochar and mineral residues
  • Waste-to-value concepts integrating waste streams as feedstock
  • Circular economy assessment for the full process chain

Pre-Commercialization

  • Pilot-scale demonstration advancing TRL from 4-5 to 6/7
  • Techno-economic analysis for industrial-scale implementation
  • Stakeholder engagement with steel industry partners
  • Intellectual property development and technology transfer plans

Scalability

  • Scale-up roadmap from pilot to demonstration to commercial scale
  • Modular design concepts for flexible capacity adaptation
  • Supply chain analysis for sustainable biomass sourcing at scale
  • Regulatory and permitting framework assessment

EU Competitiveness

  • Strengthening EU leadership in green steel technologies
  • Cross-border collaboration across 5 European countries
  • Contribution to EU Green Deal and Fit-for-55 objectives
  • Industrial competitiveness through reduced carbon costs

Knowledge Sharing

  • Open-access publications in peer-reviewed journals
  • Training and capacity building for early-career researchers
  • Industry workshops and stakeholder dissemination events
  • Best practice guidelines for biomass-to-steel pathways

News & Events

Project news, conference participations, publication announcements, and upcoming events.

News will be published here as they become available.

Publications

Project deliverables and newsletters available for download.

Deliverables

Deliverables will be published here as they become available.

Newsletters

Newsletters will be published here as they become available.

Consortium Partners

Partners from 5 European countries combining expertise in biomass gasification, steel production, process engineering, and lifecycle assessment.

Germany

USTUTT

University of Stuttgart, Institute for Energy Process Engineering and Dynamics in Energy Systems (IED). Coordinates the project and leads the experimental investigation of the Oxy-SEG for DRI process chain using both 20 kW and 200 kW DFB gasification facilities. Considerable experience in thermal utilization of gaseous, liquid and solid fuels.

ied.uni-stuttgart.de ↗

GTT-Technologies

One of the pioneers in the practical application of thermochemistry to analyze industrial problems. The thermo-kinetic process model specialized for DRI in mixed gas atmosphere will support and efficiently guide the experimental work.

gtt-technologies.de ↗

Cyclize

Science-based spin-off developing a novel and patented plasma process to convert hydrocarbons into syngas with variable ratios. Scaling from a pilot plant (TRL5) to a demo plant in a chemical park (TRL7).

cyclize.de ↗

ArcelorMittal

World leader in steel production, operates Europe's only Direct Reduced Iron (DRI) plant in Hamburg, Germany. Involved in material characterization, experimental testing of the oxy-SEG process, integration studies for the DRI furnace, and business case analysis for bio-syngas utilization.

germany.arcelormittal.com ↗
National Funding Agency

BMWK

Federal Ministry for Economic Affairs and Climate Action

Austria

BEST

BEST - Bioenergy and Sustainable Technologies GmbH. One of the leading institutions in Austria in the field of thermal biomass utilization. Will perform SEG with their 1 MWth gasifier and investigate the effects on downstream gas cleaning, and lead WP5 conducting LCA and assessing the socio-economic impacts.

best-research.eu ↗

Aichernig Engineering

Highly specialized small engineering company focused on planning bioenergy plants. Contributes expertise in designing medium and large-scale industrial bioenergy plants to the scaling-up concept and techno-economic analysis of bio-syngas and CO2 utilization.

repotec.at ↗
National Funding Agency

FFG

Austrian Research Promotion Agency

Sweden

KTH

KTH Royal Institute of Technology, Stockholm. Group of Energy and Furnace Technology. Working on catalytic cracking of biomass and syngas, producing bio graphite and hard carbon from biomass for application in batteries, steelmaking plants and primary aluminum production. In BioH2Steel, KTH will work on the experimental study of CO2 to solid carbon and assess the application of carbon for battery and steel plant applications.

mse.kth.se ↗

FerroSilva

Commercialising the FerroSilva process for the production of DRI using syngas from residual products from forestry and agriculture. The process has the potential to turn the steel industry into a carbon sink.

ferrosilva.com ↗
National Funding Agency

Swedish Energy Agency

Energimyndigheten

Denmark

DTU

Technical University of Denmark, Department of Chemical and Biochemical Engineering. Will demonstrate their state-of-the-art electro-scrubber technology for removal of impurities from gas at USTUTT's pilot-scale oxy-SEG facility. The innovative technology has been developed for biogas cleaning and will be tested on the bio-syngas for the DRI as a potential new area of application.

dtu.dk ↗

Elplatek

Core business is electroplating on special equipments and on electrodes for H2 production. Will help DTU demonstrating the innovative e-cleaning process for gas impurity removal at USTUTT's pilot-scale oxy-SEG facility.

elplatek.dk ↗
National Funding Agency

EUDP

Energy Technology Development and Demonstration Programme

Poland

WUST

Wroclaw University of Science and Technology, Department of Energy Conversion Engineering. Focusing on the characterization, torrefaction, combustion, and gasification of fuels. Expertise in biomass and waste torrefaction (dry/wet HTC processes), advancing plasma gasification and vitrification technologies.

pwr.edu.pl ↗

WITI

Is an independent R&D company supervised by the Minister of National Defense, specializing in military and civil engineering for the Polish and EU markets. Its main activities include mine-barrier equipment, shelters, camouflage systems, and engineering machines, applying research to the needs of engineering forces. The institute’s experience in plasma technologies and project expertise will play a key role in utilizing vitrification products for fortification, diagnostics, and hazardous material disposal.

witi.wroc.pl ↗

New Partner

Details about the new partner will be added soon.

National Funding Agency

NCBR

National Centre for Research and Development

Contact

DI Adolf Neuwirth

Project Coordinator

University of Stuttgart, Institute for Energy Process Engineering and Dynamics in Energy Systems

Christoph Strasser

Communication

BEST – Bioenergy and Sustainable Technologies GmbH

Website implemented by BEST