西南石油大学学报(自然科学版) ›› 2007, Vol. 29 ›› Issue (4): 129-133.DOI: 10.3863/j.issn.1000-2634.2007.04.33
• 油气化学工程与化工 • Previous Articles Next Articles
LI Gui-ming1 YANG Hong-jian1 JIA Qing2 et al
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Abstract: The mechanism study on CO2 absorption in aqueous solution of TETA and MDEA has been conducted. The solubility and absorption rate of CO2 in MDEATETAH2O (2.7 mol MDEA/L + 0.3 mol TETA/L) are studied by using a dynamic absorption technique. A simplified gasliquid equilibrium model for the CO2TETAMDEAH2O system and the rate equation of CO2 absorption in the solution are developed. Predicted and experimental CO2 equilibrium solubility，CO2 equilibrium partial pressures and CO2 absorption rate are all in good agreement, and the relative error is less than 10%. The model and equation are reliable for commercial unit design.
The mechanism study on CO2 absorption in aqueous solution of TETA and MDEA has been conducted. The solubility and absorption rate of CO2 in MDEATETAH2O (2.7 mol MDEA/L + 0.3 mol TETA/L) are studied by using a dynamic absorption technique. A simplified gasliquid equilibrium model for the CO2TETAMDEAH2O system and the rate equation of CO2 absorption in the solution are developed. Predicted and experimental CO2 equilibrium solubility，CO2 equilibrium partial pressures and CO2 absorption rate are all in good agreement, and the relative error is less than 10%. The model and equation are reliable for commercial unit design.
Key words: MDEA, TETA, carbon dioxide absorption, gasliquid equilibrium, kinetics
CLC Number:
TE644
LI Gui-ming YANG Hong-jian JIA Qing et al. EQUILIBRIUM SOLUBILITY AND KINETICS OF CO2 ABSORPTION IN AQUEOUS ACTIVATED METHYLDIETHANOLAMINE SOLUTIONS[J]. 西南石油大学学报(自然科学版), 2007, 29(4): 129-133.
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URL: http://journal15.magtechjournal.com/Jwk_xnzk/EN/10.3863/j.issn.1000-2634.2007.04.33
http://journal15.magtechjournal.com/Jwk_xnzk/EN/Y2007/V29/I4/129
