Community Research and Development Information Service - CORDIS

FP6

CO2SINK — Result In Brief

Project ID: 502599
Funded under: FP6-SUSTDEV
Country: Germany

The benefits of carbon capture and storage

An EU-funded project contributed to enhanced awareness of the benefits of carbon storage through on-site demonstration and monitoring.
The benefits of carbon capture and storage
Although geological sequestration of carbon dioxide (CO2) offers a promising means of significantly reducing Europe's CO2 emissions, there remain public concerns regarding the safety and environmental impact of carbon capture and storage (CCS). Efforts to combat this call for a better understanding of the science of CO2 sequestration.

The 'In-situ R&D laboratory for geological storage of CO2' (CO2SINK) project contributed to these efforts by monitoring its own CO2 injection activities underneath the city of Ketzin near Berlin. The project's main focus was the development and testing of monitoring techniques, accompanied by a public outreach programme.

The Ketzin gas storage site offered an existing surface infrastructure, thereby cutting down on the need for new developments, and it possesses known geological features that are largely representative of many areas in Europe. The latter advantage means results can be more easily transferred. Furthermore, the test site is close to a metropolitan area, and thus presented a unique opportunity for showcasing onshore CO2 storage. This was deemed especially important for accelerating public awareness of the benefits of geological storage of CO2 as an option for lessening greenhouse gas (GHG) emissions.

A total of 33 000 tonnes of CO2 were injected in the Ketzin facilities over a period of 21 months. Effects of CO2 injection were observed and measured with long-term field monitoring using commercially available geochemical sensors that were maintained over the entire duration of the project. Geophysical and geochemical techniques and sensor systems were used to monitor wells, the spreading of the CO2 plume, relevant temperature changes, gas composition and seismic effects.

One of the CO2SINK's monitoring successes was the indication that, after five months of CO2 storage, the microbial community adapted to changes in environmental conditions. This and other successes inspired many national and international activities that greatly contributed to the accomplishment of various project objectives.

Project partners undertook a several activities aimed at informing the wider community about the project and CCS in general. The site was host to a small visitor's centre, which also offered a relevant tour, and several open events were extensively covered by the local, national, European and international press.

CO2SINK aimed to continue project work and complement research activities at the Ketzin storage site for the duration of a second period.

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