Analysis of CO2 Solubility and Absorption Heat into Aqueous 1-Diethylamino-2-propanol. (July 2017)

• Record Type: Journal Article
• Authors: Liu, Helei; Idem, Raphael; PaitoonTontiwachwuthikul, ; Liang, Zhiwu; Rongwong, Wichitpan; Al-Marri, Mohammed Jaber; Benamor, Abdelbaki
• Is Part Of: Energy procedia. Volume 114(2017)
• Page Start: 873
• Page End: 879
• Publication Date: 2017-07
• Subjects: Equilibrium CO2 solubility -- Liu-Helei model -- Ion speciation plots -- 1DEA2P -- CO2 absorption; Power resources -- Congresses; Power resources -- Periodicals; Power resources; Conference proceedings; Periodicals; 333.7905
• DOI: 10.1016/j.egypro.2017.03.1230
• Languages: English
• ISSNs: 1876-6102

Abstract

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 -H2 O system were developed in order to further understand the reaction process of 1DEA2P with CO2 .