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Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received November 28, 2000
Accepted August 3, 2001

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Unsteady-State Absorption of CO2 into w/o Emulsion with Aqueous Alkaline Liquid Droplets

Sang-Wook Park^† Hidehiro Kumazawa¹ In-Joe Sohn

Department of Chemical Engineering, Pusan National University, Busan 609-735, Korea ¹Department of Material System Engineering and Life Science, Toyama University, Toyama 930-8555, Japan

Korean Journal of Chemical Engineering, January 2002, 19(1), 75-82(8), 10.1007/BF02706877

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Abstract

Unsteady-state absorption of CO2 into w/o emulsion was studied by experimental measurements and prediction from mathematical modeling. Absorption experiments were performed by using a stirred vessel with a flat gasliquid interface under 0.101 MPa and 25 oC. Continuous phase was benzene that has larger solubility than water. Dispersed phase was an aqueous solution of NaOH and AMP. The effects of reactant concentration, size of emulsified droplets, volume fraction of continuous phase and stirring speed on the absorption rate of CO2 were investigated. In the mathematical model, the mechanism of CO2 absorption into the continuous 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.

Keywords

Gas Absorption Carbon Dioxide Emulsion Amine

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