Korea-Australia Rheology Journal

  • 제20권1호
  • /
  • Pages.1-6
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  • 2008
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  • 1226-119X(pISSN)
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  • 2093-7660(eISSN)
한국유변학회 (The Korean Society of Rheology)
권호 표지

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

  • Park, Sang-Wook (Division of Chemical Engineering, Pusan National University) ;
  • Choi, Byoung-Sik (Division of Chemical Engineering, Pusan National University) ;
  • Song, Ki-Won (Division of Chemical Engineering, Pusan National University) ;
  • Lee, Jae-Wook (Department of Chemical Biomolecular Engineering, Sogang University)
  • 발행 : 2008.03.31
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초록

Absorption rate of carbon dioxide was measured in the aqueous xanthan gum (XG) solution in the range of 0-0.15 wt% containing 2-amino-2-methyl-1-propanol (AMP) of $0-2\;kmol/m^3$ in a flat-stirred vessel with an impeller of 0.05m and agitation speed of 50rpm at $25^{\circ}C$ and 0.101 MPa. The volumetric liquid-side mass transfer coefficient ($k_La$) of $CO_2$, which was correlated with the viscosity and the elastic behavior of XG solution containing Deborah number as an empirical formula, was used to estimate the chemical absorption rate of $CO_2\;(R_A)$. $R_A$, which was estimated by mass transfer mechanism based on the film theory using the physicochemical properties and the kinetics of reaction between $CO_2$ and AMP, was compared with the measured rate. The aqueous XG solution with elastic property of non-Newtonian liquid made $R_A$ increased compared with Newtonian liquid based on the same viscosity of the solution.

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