Experimental Vapor-Liquid Equilibrium Data for Binary Mixtures of Methyldiethanolamine in Water and Ethylene Glycol under Vacuum

Soames, A.; Al Helal, A.; Iglauer, Stefan; Barifcani, Ahmed; Gubner, Rolf

doi:10.1021/acs.jced.8b00054

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Authors

Soames, A.

Al Helal, A.

Iglauer, Stefan

Barifcani, Ahmed

Gubner, Rolf

Date

2018

Type

Journal Article

Metadata

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Citation

Soames, A. and Al Helal, A. and Iglauer, S. and Barifcani, A. and Gubner, R. 2018. Experimental Vapor-Liquid Equilibrium Data for Binary Mixtures of Methyldiethanolamine in Water and Ethylene Glycol under Vacuum. Journal of Chemical & Engineering Data. 63 (5): pp. 1752-1760.

Source Title

Journal of Chemical & Engineering Data

DOI

10.1021/acs.jced.8b00054

ISSN

0021-9568

School

WASM: Minerals, Energy and Chemical Engineering (WASM-MECE)

URI

http://hdl.handle.net/20.500.11937/69090

Collection

Curtin Research Publications

Abstract

© 2018 American Chemical Society. Methyldiethanolamine (MDEA) is a widely used chemical in the natural gas processing industry as a solvent for CO2and H2S capture and as a basic compound for pH stabilization corrosion control. During pH stabilization corrosion control, the removal of MDEA during the (mono)ethylene glycol (MEG) regeneration process may occur under vacuum conditions during reclamation in which the removal of salt cations is performed. Isobaric vapor-liquid equilibrium data for the binary MEG-MDEA system is presented at (20, 10 and 5) kPa and water-MDEA system at (40, 20, 10) kPa to simulate its behavior during MEG reclamation under vacuum. Vapor and liquid equilibrium concentrations of MDEA were measured using a combination of ion chromatography and refractive index. The generated experimental VLE data were correlated to the UNIQUAC, NRTL, and Wilson activity coefficient models, and the respective binary parameters were regressed.