Analysis of CO2 Solubility and Absorption Heat into Aqueous 1-Diethylamino-2-propanol

Helei Liu, Raphael Idem, Paitoontontiwachwuthikul, Zhiwu Liang, Wichitpan Rongwong, Jaber Al Marri, Abdelbaki Benamor

Research output: Contribution to journalConference article

Abstract

In this work, the CO2 equilibrium solubility in 2 M 1-diethylamino-2-propanol (1DEA2P) solution were determined as function of temperature (in the range of 298-333K), and CO2 partial pressure (in the range of 8-101 kPa). The modified Li-shen K2 correlation model was also developed and used to predicate the CO2 equilibrium solubility in 1DEA2P solution. with an excellent ADD of 3.4%. The heat of CO2 absorption in 1DEA2P solution estimated using Gibbs-Helmholtz equation was found to be -45.7 kJ/mol. In addition, the ion (1DEA2P, 1DEA2PH+, HCO3 -, CO3 2-) speciation plots of the 1DEA2P-CO2-H2O system were developed in order to further understand the reaction process of 1DEA2P with CO2. Published by Elsevier Ltd.

Original languageEnglish
Pages (from-to)873-879
Number of pages7
JournalEnergy Procedia
Volume114
DOIs
Publication statusPublished - 1 Jan 2017
Externally publishedYes

Fingerprint

Propanol
Solubility
Helmholtz equation
Partial pressure
Hot Temperature
Ions

Keywords

  • 1DEA2P
  • CO absorption
  • Equilibrium CO solubility
  • Ion speciation plots
  • Liu-Helei model

ASJC Scopus subject areas

  • Energy(all)

Cite this

Liu, H., Idem, R., Paitoontontiwachwuthikul, Liang, Z., Rongwong, W., Al Marri, J., & Benamor, A. (2017). Analysis of CO2 Solubility and Absorption Heat into Aqueous 1-Diethylamino-2-propanol. Energy Procedia, 114, 873-879. https://doi.org/10.1016/j.egypro.2017.03.1230

Analysis of CO2 Solubility and Absorption Heat into Aqueous 1-Diethylamino-2-propanol. / Liu, Helei; Idem, Raphael; Paitoontontiwachwuthikul; Liang, Zhiwu; Rongwong, Wichitpan; Al Marri, Jaber; Benamor, Abdelbaki.

In: Energy Procedia, Vol. 114, 01.01.2017, p. 873-879.

Research output: Contribution to journalConference article

Liu, H, Idem, R, Paitoontontiwachwuthikul, Liang, Z, Rongwong, W, Al Marri, J & Benamor, A 2017, 'Analysis of CO2 Solubility and Absorption Heat into Aqueous 1-Diethylamino-2-propanol', Energy Procedia, vol. 114, pp. 873-879. https://doi.org/10.1016/j.egypro.2017.03.1230
Liu, Helei ; Idem, Raphael ; Paitoontontiwachwuthikul ; Liang, Zhiwu ; Rongwong, Wichitpan ; Al Marri, Jaber ; Benamor, Abdelbaki. / Analysis of CO2 Solubility and Absorption Heat into Aqueous 1-Diethylamino-2-propanol. In: Energy Procedia. 2017 ; Vol. 114. pp. 873-879.
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AU - Liang, Zhiwu

AU - Rongwong, Wichitpan

AU - Al Marri, Jaber

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AB - In this work, the CO2 equilibrium solubility in 2 M 1-diethylamino-2-propanol (1DEA2P) solution were determined as function of temperature (in the range of 298-333K), and CO2 partial pressure (in the range of 8-101 kPa). The modified Li-shen K2 correlation model was also developed and used to predicate the CO2 equilibrium solubility in 1DEA2P solution. with an excellent ADD of 3.4%. The heat of CO2 absorption in 1DEA2P solution estimated using Gibbs-Helmholtz equation was found to be -45.7 kJ/mol. In addition, the ion (1DEA2P, 1DEA2PH+, HCO3 -, CO3 2-) speciation plots of the 1DEA2P-CO2-H2O system were developed in order to further understand the reaction process of 1DEA2P with CO2. Published by Elsevier Ltd.

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