Study On The Kinetics And Viscosity Of Carbonated K₂CO₃–Amine Aqueous Solution

In this thesis, the saturated solubility, loading value and absorption rate were measured for CO₂ in 2-amino-2-methyl-1-propanol（AMP） promoted K₂CO₃ aqueous solutions. The temperatures ranged from 303.2K to 323.2K. The viscosities of K₂CO₃-AMP aqueous solutions were also measured and then modeled by using the Weiland equation.Our results show that:（1） At given mass fraction of K₂CO₃ and temperature, with increasing mass fraction of AMP, the saturated solubility and CO₂ loading respectively increases and decreases, however, the absorption rate also obviously increases;（2） At given mass fractions of K₂CO₃ and AMP, with increasing temperature, both the saturated solubility and CO₂ loading decrease but the absorption rate obviously increases;（3） At given mass fraction of K₂CO₃ and temperature, the viscosity of K₂CO₃-AMP aqueous solution increases with the increase of the mass fraction of AMP;（4） At given mass fraction of K₂CO₃ and AMP, the viscosity of K₂CO₃-AMP aqueous solution decreases with increasing temperature;（5） At given mass fraction of AMP and temperature, the viscosity of K₂CO₃-AMP aqueous solution increases with the increase of the mass fraction of K₂CO₃;（6） The Weiland equation is able to correlate the viscosity of K₂CO₃-AMP aqueous solution, and the correlation agrees with experiment.