Publication Date:
2013-10-12
Description:
Surface tensions of carbonated 2-amino-2-methyl-1-propanol (AMP) and piperazine (PZ) aqueous solutions were measured by a surface tension meter which employs the Wilhemy plate principle. A thermodynamic model was proposed to correlate the surface tensions of both CO 2 -unloaded and CO 2 -loaded aqueous solutions by introducing the contribution of CO 2 loading into the formulation of surface tension. Based on experiments and calculations, the effects of temperature, mass fractions of amines, and CO 2 loading on surface tensions of carbonated aqueous solutions were demonstrated. Aqueous solutions of amines are widely used for CO 2 removal from a variety of gas streams. Surface tensions of carbonated aqueous solutions of 2-amino-2-methyl-1-propanol and piperazine were measured and the influence of temperature, amine mass fractions, and CO 2 loading was evaluated. The proposed thermodynamic model for the correlation of surface tensions agreed well with experimental data.
Print ISSN:
0930-7516
Electronic ISSN:
1521-4125
Topics:
Chemistry and Pharmacology
,
Process Engineering, Biotechnology, Nutrition Technology
