Abstract
We have investigated storage potential in a feasibility study of a CO2 geologic storage system design. This study is a part of a research project titled —Innovative Zero-emission Coal Gasification Power Generation||. In commercial use cases, the total amount of CO2 storage is approximately 30 million tons, which means that theannual amount of CO2 storage is 1.54 million tons in a 20-year injection cycle. In the case of large-scale CO2 storage, the total amount of CO2 storage is assumed to be 200 million tons; the annual amount of CO2 storage is 10 million tons in a 20-year cycle. We selected three reservoir sites—sites A, B, and C—as commercial use cases. An additional site, Site D, was selected as a large-scale CO2 storage site. the storage capacities of aquifers distributed in 4 sites,sites A, B, and C as commercial use cases and site D as large-scale CO2 storage case, were evaluated. Additionally, injectivity and long-term behavior were examined through numerical analyses. These results indicated the possible of sites A, B, and C as commercial use and site D as large-scale CO2 storage.This paper describes the site selection, geological characterization, and CO2 storage potential of sites selected for case studies.
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