Investigation of adsorption properties of geological materials for CO2 storage |
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| Authors: | Tanja Tajnik Lu?ka Kajfe? Bogataj Egon Jura? Cvetka Ribari? Lasnik Jakob Likar Brane Debelak |
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| Affiliation: | 1. University of Ljubljana, Biotechnical Faculty, Department of Agriculture, , 1000 Ljubljana, Slovenia;2. ?o?tanj Thermal Power Plant, , 3325 ?o?tanj, Slovenia;3. Institute of the Environment and Spatial Planning, , 3000 Celje, Slovenia;4. University of Ljubljana, Faculty of Natural Sciences and Engineering, Department of Geotechnology and Mining, , 1000 Ljubljana, Slovenia |
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| Abstract: | The assessment for realistic CO2‐adsorption capacities of different rocks is important for understanding the processes associated with CO2 storage. This paper investigates the adsorption characteristics of rocks for CO2 (limestone, sandstone, marl, claystone, clay, siltstone and metamorphic rock) by using a gravimetric method. The measurements were performed at 21°C with pressures from 1 up to 4 MPa. Sandstone (and clay with sand/sandstone) showed the largest adsorption capacity at 21°C. The highest amount of in situ CO2 contents in measured samples was 21.4 kg/t. The CO2‐adsorption capacities were lower than past results in different coal samples. The results indicate that adsorption of CO2 into rocks may play an important role in storing CO2 in subsurface rock. Copyright © 2012 John Wiley & Sons, Ltd. |
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| Keywords: | carbon dioxide carbon capture and storage CCS adsorption rocks gravimetric method |
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