Jinsheng Wang is a research scientist in CanmetENERGY, Natural Resources Canada, where he has worked on clean energy, carbon capture and storage (CCS), and oil and gas related projects since 2000. He has a PhD in chemical engineering and industrial experience in chemical and gas technologies.He has published on various topics related to his projects and is the principal author of a technical report of the International Energy Agency’s Greenhouse Gas R&D Program (IEA GHG) concerning geological storage of CO2.Philip Jaeger is full professor at Clausthal University of Technology. He holds a PhD in chemical engineering and is co-founder of Eurotechnica GmbH. His Venia Legendi is titled "Interfaces in enhanced oil and gas recovery". Over the past 30 years, he has published research on applications of supercritical fluids, system properties and colloidal behaviour at elevated pressures as well as carbon dioxide capture, storage and utilization. His current areas of research activities comprise phase/interphase behavior and mass transport in subsurface energy systems, handling of hydrogen as well as formation of dispersions at elevated pressures. Lectures given at Clausthal University cover topics related to subsurface energy production systems including geothermal energy.Hanin Samara is a research associate and lecturer at Clausthal University of Technology, with a PhD in petroleum engineering. She leads high-pressure laboratory operations, specializing in unconventional resources, gas storage, and separation processes, and has authored multiple research papers in these fields. With an energy management engineering background, she worked on projects related to green building design, energy efficiency, and renewable energy solutions.

• 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.