화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.27, No.5, 1570-1575, September, 2010
DOI10.1007/s11814-010-0269-5  Export Citation
Absorption of carbon dioxide in aqueous colloidal silica solution with NaOH
Kyu-Suk Hwang, Sang-Wook Park†, Dae-Won Park, Kwang-Joong Oh, and Seong-Soo Kim1
  • Division of Chemical Engineering, Pusan National University, Busan 609-735, Korea
  • 1Department of Environmental Administration, Catholic University of Pusan, Busan 609-737, Korea
E-mail:
The absorption rate (R(A)) of carbon dioxide was measured into an aqueous nanometer-sized colloidal silica solution of 0-31 wt% and NaOH of 0-2 kmol/m3 in a flat-stirred vessel for various sizes and speeds of 25 ℃ and 101.3 N/m2 to obtain the volumetric liquid-side mass transfer coefficient (k(L)a(L)) of CO2. The film theory accompanied by chemical reaction between CO2 and NaOH was used to estimate the theoretical value of absorption rate of CO2. The empirical correlation formula containing the relationship between kLaL and rheological property of the aqueous colloidal silica solution was presented. The value of R(A) in the aqueous colloidal silica solution was decreased by the reduction of k(L)a(L) due to elasticity of the solution.
Keywords:Absorption;NaOH;Carbon Dioxide;Silica;Viscoelastic Liquid
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