Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
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Absorption of Carbon Dioxide into Polar Solvents of 2-Amino-2-Methyl-1-Propanol

2-Amino-2-Methyl-1-Propanol이 용해한 극성 용매에서 이산화탄소의 흡수

  • Son, Young-Sik (Division of Chemical Engineering, Pusan National University) ;
  • Heo, Nam-Hwan (Technical Research Laboratories, POSCO) ;
  • Lee, Sung-Su (Technical Research Laboratories, POSCO) ;
  • Park, Sang-Wook (Division of Chemical Engineering, Pusan National University)
  • Received : 2009.03.09
  • Accepted : 2009.04.17
  • Published : 2009.06.30
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Abstract

The absorption rate of carbon dioxide with 2-amino-2-methyl-1-propanol(AMP) was measured in such non-aqueous solvents as methanol, ethanol, n-propanol, n-butanol, ethylene glycol, propylene glycol, and propylene carbonate, and in water at 298 K and 101.3 kPa using a semi-batch stirred tank with a plane gas-liquid interface. The overall reaction rate constant, obtained under the condition of fast reaction regime, from the measured rate of absorption was used to get the elementary reaction rate constants in complicated reactions represented by reaction mechanism of carbamate formation and the order of overall reaction of $CO_2$ with amine. The correlation between the elementary reaction rate constant and the solubility parameter of the solvent was also presented.

평판형 교반기를 사용하여 2-amino-2-methyl-1-propanol(AMP)가 용해된 methanol, ethanol, n-propanol, n-butanol, ethylene glycol, propylene glycol, 및 propylene carbonate와 같은 극성 용매에서 이산화탄소($CO_2$)의 흡수속도를 측정하였다. $CO_2$의 흡수속도와 carbamate 생성 반응 메커니즘을 사용하여 기-액 불균일반응계의 빠른 반응영역에서 $CO_2$-AMP의 반응속도론을 해석하였으며 용매의 용해도 매개변수와 반응속도상수와의 상관관계를 제시하였다.

Keywords

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