Rates of CO2 absorption into aqueous droplets of monoethanolamine (MEA), diethanolamine (DEA), and triethanolamine (TEA) in water-in-oil (w/o) emulsion were measured in a flat-stirred vessel at 25degreesC. The effects of reactant concentration, size of aqueous droplets, volume fraction of continuous phase, and stirring speed on the absorption rate of CO2 were investigated. The absorption mechanism of CO2 into the continuous benzene phase through a gas-liquid interface was described on the basis of the penetration model, while the subsequent absorption/reaction in the dispersed aqueous droplets was modeled by the film model.