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KMID : 1024519930020010085
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Journal of the Environmental Sciences
1993 Volume.2 No. 1 p.85 ~ p.90
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Kinetics of CO₂ Absorption in Aqueous AMP (2-amino-2-methyl-1-propanol) Solutions
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Park Moon-Ki
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Abstract
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The reaction rate of with 2-amino-2-methyl-1-propanol (AMP), MEA monoethanolamine (MEA) and diethanolamine (DEA) in aqueous solutions has been determined using a stirred vessel with a plane gas-liquid interface over a wide range of concentrations of amines at different temperatures. The results show that the overall reaction rate is first order with respect to both and amino. The reaction rate constant varies with temperature according to the relationship which agrees with the experimental data. The proposed interpretation is that the kinetic rate determining step is a reaction of with amine to form carbamic acid which is then totally and immediately ionized.
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KEYWORD
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2-amino-2-methy-1-propanol (AMP), reaction rate constant, carbamic acid, stirred vessel
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