Abstract
The global warming problem caused by increase of CO_2 in the atmosphere is getting tangible. Gas Lift Advanced Dissolution (GLAD) system has been newly developed to mitigate the global warming. The system dissolves low-purity CO_2 gas in seawater and sequestrates CO_2 at the deep ocean. The present paper describes basic characteristics of the system for pure and low-purity CO_2 gases. Performance of dissolution, liquid phase velocity, mass transfer coefficient, profile of void fraction will be discussed as functions of the gas injection rate. In addition, a relationship between mass transfer coefficient and bubble interfacial dynamics in the system will be discussed.