Methanization and Energy Optimization of Biogas and Energy Plants in Southern Denmark

Challenge
The goal of the project is to support companies and a network connected to Tønder Business Council and stakeholders in Southern Denmark in a design initiative.

The focus is on increasing energy output and payments for energy through methanization and how this will involve local companies.

The objective is to develop a sustainable method for methanizing the CO2 content in biogas and thermal gasification gas within a robust and sustainable concept. This involves utilizing Danish patents from Aarhus University and companies to create a turnkey solution for 1-2 MW biogas plants.

Solution
The solution includes:

• Green electricity supply via local solar/wind producers.
• Design and dimensioning of an electrolysis plant (for hydrogen production).
• Design of plastic columns for biological methanization.
• Concept sketch for an integrated biogas and methanization system.
• Production of technical water based on wastewater sources.
• Method for thermal gasification and drying of biomass materials.
• Project coordination, involvement of local companies, and development of a business model for materials.

Impact

1. Green electricity sourcing: A report will be prepared on the possibilities of purchasing green electricity, based on both local actors and energy trading companies operating in Denmark and Germany.
2. Electrolysis plant proposal: Based on the requirements and preferences of LH Bio, Tønder Business Council, and Aarhus University, Xinct Electrolyzers Holland will prepare a proposal with technical and economic key figures for further development.
3. Industrial design proposal: A concrete industrial design proposal will be provided by A78, including drawings of the structure and modules for the methanization plant.
4. Concept design for biogas production: A corresponding design proposal for the overall concept targeting 1-2 MW biogas production will be developed, based on Holbæk Bioenergi’s facility in Tønder municipality. This task includes combining existing and new components and equipment.
5. Water purification solution: A cost estimate for a production-scale water purification solution will be prepared, including technical and economic data for agriculture/biogas and wastewater stakeholders. Chemical analyses will be conducted at a test facility. A drying method will also be designed and tested to achieve 50-70% dry matter in biomass for production scale.
6. Feasibility study for gasification: A feasibility study will be conducted for the implementation of gasification plants on a production scale. This includes analyzing suitable waste products, digested and dried products from biogas plants, and exploring solutions for drying and methanization as described above.
7. Project coordination: A management and activity plan will be created for project participants and stakeholders. A communication plan will ensure the involvement of member companies and local stakeholders on both sides of the border. A business model will be developed, including financing opportunities, marketing, and economic analysis for individual sub-solutions and the overall concept.

Cross-border cooperation
Tønder Business Council will ensure that the same concept is desired for establishment and demonstration under German conditions, extending the development led by Holbæk Bioenergi ApS.

Biogas-Hof-Martensen in Sönnebüll is forming an investor group, including solar and wind stakeholders, for similar development and large-scale demonstration.

In Germany, the work involves biogas plant owners who share similar conditions with several Danish projects. LH Bio serves 6-8 medium-sized Danish biogas plants that will follow the development.

It is important to note that both individual solutions and the overall solution can be commercialized.

Partners

• LH Bio
• Nordphos
• A78 Architects
• Victor Energy
• Tønder Business Council