Abstract
We experimentally investigated the characteristics of dissolution rate of CO_2 into water in porous media and the behavior of emitted CO_2 from porous media in sequestration conditions. Dissolution rate of CO_2 were summarized as a relationship between the modified Sherwood number and Reynolds number. Liquid CO_2 shows a high mass transfer rate as compared with gas and supercritical states. Carbon dioxide is emitted from porous rock in bubble form with diameters of about 1mm in gas state and much finer in liquid state.
