CO2Dissolved - CO₂ Dependable Injection and Storage System Optimized for Local Valorization of the geothermal Energy Delivered

Begin of project: January 1, 2013

End of project: April 30, 2016

Status of project: April 30, 2016

Schematic illustration of the CO2-Dissolved concept. Source: Partnering in Innovation, Inc. (USA)

To the end of the 21^st century carbon capture and storage (CCS) from industrial processes will become increasingly important as both significant reductions of CO₂ emissions will then be required and the “Energiewende” for electric power generation will then generally be implemented.

In order to keep carbon capture and storage costs within reasonable limits, new and cheap procedures have to be applied. Also CO₂ should preferably be injected in close proximity to where it is captured. This could be achieved by a novel patented concept that combines geothermal energy production and CO₂ capture and storage by dissolving CO₂ in the produced thermal water and subsequent re-injection. In contrast to classical concepts no formation water will be displaced and no free gas phase can develop. Hence, CO₂ can securely be stored at a large number of sites even if respective reservoir qualities (i.e. seal properties) do not match those of comparable gas reservoirs. Another advantage of the concept is the possibility to use the extracted heat from the thermal water directly at the site for industrial purposes or local heating networks.

This concept would be applicable for industrial CO₂ emitters at the small to medium scale (i.e. 10-150 kt CO₂/a). Together with partners from France and the USA the feasibility of the concept will be evaluated for conditions in Germany.

Link to project homepage

Partner:

• BRGM (coordinator)
• CFG
• Geogreen
• Georessources
• LEO
• Partnering in Innovation, Inc. (USA)