中文摘要：

分别以环己烷、甲苯、正庚烷和正丁醇4种不同性质的有机溶剂作分散相，采用恒温槽反应器测定了CO2在水中的吸收速率．结果表明，吸收速率与界面性质有关，未加表面活性剂时，甲苯、环己烷、正庚烷乳液中的传质速率与其在气液界面上的铺展状况相对应，甲苯〉正庚烷〉环己烷，铺展所产生的油膜造成了附加阻力，使低体积分率时CO2吸收速率反比纯水中低，最小时甲苯、环己烷、正庚烷所对应的体积分率分别为0．02，0．08和0．04．表面活性剂的加入促使乳液更趋稳定，但由于表面活性剂在气液界面及油水界面的吸附，传质阻力显著增加，吸收速率较无表面活性剂时更低，对此现象进行了理论分析．与甲苯、环己烷等不同，正丁醇／水为部分互溶体系，在实验浓度范围内，吸收速率呈现先上升后逐渐下降的趋势，乳液与纯水中吸收速率比J/J0最高点与正丁醇在水中的溶解度相对应．

英文摘要：

The absorption of CO2 into emulsions was investigated using four organic solvents with different properties as dispersed phase, toluene, cyclohexane, n-heptane and n-butanol in a thermostatic reactor. The experimental results show that the absorption rate is closely related to the interfacial properties. When surfactants are not added, the absorption rates of CO2 in the emulsions of toluene, cyclohexane and n-heptane corresponding to their spreading behavior at the gas-liquid interface are： toluene 〉 n-heptane 〉 cyclohexane. Furthermore, a lower absorption rate than that in pure water is observed at low oil volume fraction due to the additional resistance by the spread oil film. The oil volume fractions for toluene, cyclohexane and n-heptane are 0.02, 0.08 and 0.04 respectively at the lowest value of J/J0. The emulsifier promotes the stabilization of the emulsion, however, it increases the resistance of mass transfer due to the adhesion of the surfactants to the gas-liquid and liquid-liquid interfaces, leading to an even lower absorption rate than in the dispersed system without addition of surfactants. Contrary to toluene, cyclohexane and n-heptane, variation of an initial rise following subsequent decline of the absorption rate is found in the partially miscible n-butanol-water system in the range of concentration discussed, and the maximum value of J/J0 coincides with the solubility of n-butanol in water.