Elsevier

Energy Procedia

Volume 114, July 2017, Pages 4722-4727
Energy Procedia

Dissolved CO2 Storage in Geological Formations with Low Pressure, Low Risk and Large Capacities

https://doi.org/10.1016/j.egypro.2017.03.1607Get rights and content
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open access

Abstract

Geological CO2 storage is a mitigation technology to reduce CO2 emissions from fossil fuel combustion. However, major concerns are the pressure increase and saltwater displacement in the mainly targeted deep groundwater aquifers due to injection of supercritical CO2. The suggested solution is storage of CO2 exclusively in the dissolved state. In our exemplary regional case study of the North East German Basin based on a highly resolved temperature and pressure distribution model and a newly developed reactive transport coupling, we have quantified that 4.7 Gt of CO2 can be stored in solution compared to 1.5 Gt in the supercritical state.

Keywords

carbon dioxide
dissolved
storage capacity
numerical simulation
saline aquifer
Buntsandstein

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Peer-review under responsibility of the organizing committee of GHGT-13.