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Effect of elasticity of aqueous colloidal silica solution on chemical absorption of carbon dioxide with 2-amino-2-methyl-1-propanol  

Park, Sang-Wook (Division of Chemical Engineering, Pusan National University)
Choi, Byoung-Sik (Division of Chemical Engineering, Pusan National University)
Lee, Jae-Wook (Department of Chemical Engineering, Sogang University)
Publication Information
Korea-Australia Rheology Journal / v.18, no.3, 2006 , pp. 133-141 More about this Journal
Abstract
Carbon dioxide was absorbed into the aqueous nanometer sized colloidal silica solution of 0-31 wt% and 2-amino-2-methyl-1-propanol of $0-2kmol/m^3$ in a flat-stirred vessel with the impeller of various sizes and speeds at $25^{\circ}C$ and 0.101 MPa to measure the absorption rate of $CO_2$. The volumetric liquid-side mass transfer coefficient$(k_La)\;of\;CO_2$ was used to obtain the empirical correlation formula containing the rheological behavior of the aqueous colloidal silica solution. Reduction of the measured $k_La$ was explained by the viscoelastic properties of the aqueous colloidal silica solution. The theoretical value of the absorption rate of $CO_2$ was estimated from the model based on the film theory accompanied by chemical reaction and compared with the measured value.
Keywords
absorption; 2-amino-2-methyl-1-propanol; carbon dioxide; silica; viscoelastic liquid;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By Web Of Science : 6  (Related Records In Web of Science)
Times Cited By SCOPUS : 2
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