TY - GEN
T1 - Measurement of the critical point for multi-component fluids by visible-type autoclave
AU - Hirano, N.
AU - Ota, Y.
AU - Tsuchiya, N.
PY - 2007
Y1 - 2007
N2 - The critical points of CO 2-H 2O, NaCl-H 2O and CO 2-NaCl-H 2O fluid mixtures were measured by observing the disappearance and reappearance of the meniscus by using the visible-type autoclave. The critical points of CO 2-H 2O and NaCl-H 2O fluids shift linearly with the variation in ion concentrations. The general tendency of the critical point shifting of H 2O-NaCl- CO 2 multi-component fluid was similar to the H 2O-CO 2 fluid. However at higher NaCl concentrations, the variation in the critical point was higher for higher CO 2 concentrations. This phenomenon is believed to be due to the interaction of ion or ions with water molecules in the fluid.
AB - The critical points of CO 2-H 2O, NaCl-H 2O and CO 2-NaCl-H 2O fluid mixtures were measured by observing the disappearance and reappearance of the meniscus by using the visible-type autoclave. The critical points of CO 2-H 2O and NaCl-H 2O fluids shift linearly with the variation in ion concentrations. The general tendency of the critical point shifting of H 2O-NaCl- CO 2 multi-component fluid was similar to the H 2O-CO 2 fluid. However at higher NaCl concentrations, the variation in the critical point was higher for higher CO 2 concentrations. This phenomenon is believed to be due to the interaction of ion or ions with water molecules in the fluid.
UR - http://www.scopus.com/inward/record.url?scp=84858019335&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84858019335&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84858019335
SN - 9780415451352
T3 - Water-Rock Interaction - Proceedings of the 12th International Symposium on Water-Rock Interaction, WRI-12
SP - 207
EP - 211
BT - Water-Rock Interaction - Proceedings of the 12th International Symposium on Water-Rock Interaction, WRI-12
T2 - 12th International Symposium on Water-Rock Interaction, WRI-12
Y2 - 31 July 2007 through 4 August 2007
ER -