This book describes the adsorption of carbon dioxide (CO2) by rocks. Carbon dioxide adsorption may play an important role in the geological storage of CO2, an essential component of carbon capture and storage (CCS) for achieving zero and negative carbon emissions to the atmosphere. Adsorption has wide applications elsewhere in industry. However, it has not received significant attention for its potential for CO2 storage, likely because the importance of CO2 adsorption on rocks is not widely recognized.
This book not only raises awareness of the importance of CO2 adsorption in CO2 storage, but also provides useful tools for research and development for the early deployment of CCS to contribute to the Paris Agreement goal of limiting global temperature rises.
Introduction.- Adsorption on solids and the potential of CO2 adsorption on reservoir rocks.- Adsorption measurements under high pressure.- Evaluating CO2 storage potential using apparent adsorption and effective density.- Absolute adsorption and fraction of adsorbed CO2 in pore space.- Reduction of overpressure due to adsorption.- CO2 adsorption and rock wettability.- Impact of adsorption on CO2 storage capacity and efficiency.- Adsorbed CO2 in post-injection phase.- Impact of adsorption on the fate of mobile CO2.- Impact of adsorption on security and safety of CO2 storage.- Conclusions and recommendations.
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