Correlation and prediction of the solubility of carbon dioxide in a mixed alkanolamine solution
- Univ. of Alberta, Edmonton (Canada). Dept. of Chemical Engineering
Aqueous alkanolamine solutions are frequently used for the removal of acidic gases, such as CO[sub 2] and H[sub 2]S from industrial and natural gases. The Clegg-Pitzer equations, expressed on a mole fraction basis, comprise an extended Debye-Hueckel term which is a function of composition and a Margules expansion carried out to the three-suffix level, with some simplifications are used to correlate and predict the vapor-liquid equilibrium data for the CO[sub 2]-mixed amine aqueous system. The interaction parameters determined from data for the binary and ternary (single amine) systems can be used to predict the quaternary mixed amine system without any additional parameters. The model is applied to the CO[sub 2]-MDEA-MEA-H[sub 2]O system containing three neutral solvents (MDEA, MEA, and H[sub 2]O) and four ionic species (MDEAH[sup +], MEAH[sup +], HCO[sub 3][sup [minus]], and RNHCOO[sup [minus]]) with four chemical equilibria simultaneously involved.
- OSTI ID:
- 6905104
- Journal Information:
- Industrial and Engineering Chemistry Research; (United States), Vol. 33:8; ISSN 0888-5885
- Country of Publication:
- United States
- Language:
- English
Similar Records
Correlation and prediction of the solubility of CO{sub 2} and H{sub 2}S in an aqueous solution of methyldiethanolamine and sulfolane
Solubility calculations for acid gases in amine blends
Related Subjects
AMINES
SOLVENT PROPERTIES
CARBON DIOXIDE
SOLUBILITY
CLEANING
HYDROGEN SULFIDES
NATURAL GAS
THERMODYNAMIC PROPERTIES
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
HYDROGEN COMPOUNDS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SULFIDES
SULFUR COMPOUNDS
030300* - Natural Gas- Drilling
Production
& Processing