Absorption of CO2 in aqueous solutions of 2-methylpiperidine: Heats of solution and modeling. (April 2016)

• Record Type: Journal Article
• Authors: Coulier, Y.; Lowe, A.; Tremaine, P.R.; Coxam, J.-Y.; Ballerat-Busserolles, K.
• Is Part Of: International journal of greenhouse gas control. Volume 47(2016:Apr.)
• Page Start: 322
• Page End: 329
• Publication Date: 2016-04
• Subjects: 2-Methylpiperidine -- Enthalpy of solution -- Thermodynamic modeling; Greenhouse gases -- Environmental aspects -- Periodicals; Air -- Purification -- Technological innovations -- Periodicals; Gaz à effet de serre -- Périodiques; Gaz à effet de serre -- Réduction -- Périodiques; Air -- Purification -- Technological innovations; Greenhouse gases -- Environmental aspects; Periodicals; 363.73874605
• DOI: 10.1016/j.ijggc.2016.02.009
• Languages: English
• ISSNs: 1750-5836

Abstract

Highlights: Absorption of CO2 in 2-methylpiperidine solutions was studied. Thermodynamic model shows good agreement with experimental results. Energetic contributions taking place during the dissolution process are described. Abstract: Absorption of CO2 in aqueous solutions of 2-methylpiperidine has been studied at different temperatures, pressures and amine compositions. The enthalpies of solution for carbon dioxide in aqueous solutions of 2-methylpiperidine were measured using a flow calorimetric technique and gas solubility limits were simultaneously estimated from the calorimetric data. A rigorous thermodynamic model of phase equilibria based on a γ–ϕ approach was used to represent the absorption of CO2 in aqueous solutions of 2-methylpiperidine. The model interaction parameters were adjusted using the experimental enthalpies of solution and vapor–liquid equilibrium data.