TY - GEN
T1 - Evaluation of CO2 sorption capacity of granite for CO 2 geological sequestration
AU - Fujii, T.
AU - Sato, Yoshinori
AU - Lin, H.
AU - Sasaki, K.
AU - Takahashi, T.
AU - Inomata, Hiroshi
AU - Hashida, Toshiyuki
PY - 2007/5/11
Y1 - 2007/5/11
N2 - Anthropogenic effects on climate can be mitigated through various measures. Among them being CO2 sequestration into geological reservoirs including deep saline aquifers, depleted oil/gas reservoirs and coal seams are interested in a powerful means for drastically reducing emissions of CO 2. When CO2 would be injected into geological reservoir, it should be necessary to know the potential of CO2 storing into the reservoir. In this study, amount of CO2 sorption of granite was to evaluate experimentally at temperatures 50, 70, 100 and 200°C and pressure up to 20 MPa using a magnetic suspension balance (MSB), which allows to measure under supercritical condition. As a result, we confirmed that the granite have the potential of CO2 sorption. Sorption isotherms obtained from the MSB experiment showed that amount of CO2 sorption increased with the increasing pressure and decreased with the increasing temperature for all experimental conditions. Especially, amount of CO2 sorption at 50°C compared with that at other temperatures (70, 100 and 200°C) increased rapidly in the vicinity of the critical state. In addition, the granite showed a maximum of CO2 sorption into granite could reach up to about 1.0% by weight at 50°C and 14.4MPa. The present results may provide a fundamental knowledge for the development of CO2 geological sequestration technology.
AB - Anthropogenic effects on climate can be mitigated through various measures. Among them being CO2 sequestration into geological reservoirs including deep saline aquifers, depleted oil/gas reservoirs and coal seams are interested in a powerful means for drastically reducing emissions of CO 2. When CO2 would be injected into geological reservoir, it should be necessary to know the potential of CO2 storing into the reservoir. In this study, amount of CO2 sorption of granite was to evaluate experimentally at temperatures 50, 70, 100 and 200°C and pressure up to 20 MPa using a magnetic suspension balance (MSB), which allows to measure under supercritical condition. As a result, we confirmed that the granite have the potential of CO2 sorption. Sorption isotherms obtained from the MSB experiment showed that amount of CO2 sorption increased with the increasing pressure and decreased with the increasing temperature for all experimental conditions. Especially, amount of CO2 sorption at 50°C compared with that at other temperatures (70, 100 and 200°C) increased rapidly in the vicinity of the critical state. In addition, the granite showed a maximum of CO2 sorption into granite could reach up to about 1.0% by weight at 50°C and 14.4MPa. The present results may provide a fundamental knowledge for the development of CO2 geological sequestration technology.
KW - Amount of CO sorption
KW - CO
KW - Geological sequestration
KW - Granite
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U2 - 10.1063/1.2721254
DO - 10.1063/1.2721254
M3 - Conference contribution
AN - SCOPUS:34248229286
SN - 0735404038
SN - 9780735404038
T3 - AIP Conference Proceedings
SP - 79
EP - 83
BT - WATER DYANMICS
T2 - 4th International Workshop on Water Dynamics
Y2 - 7 November 2006 through 8 November 2006
ER -