Carbon Dioxide Solubility in Guanidinium-Based Ionic Liquids at High Pressure

Królikowski, Marek; Więckowski, Mikołaj; Ebrahiminejadhasanabadi, Mojgan; Nelson, Wayne Michael; Naidoo, Paramespri; Ramjugernath, Deresh; Domańska, Urszula

doi:10.2139/ssrn.4114580

Cited by 1 publication

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“…The apparatus and experimental procedure were described in detail in previous works. 33,35,36 A transparent equilibrium cell with a capacity of 36.29 cm 3 and constructed from a sapphire tube is the core of the apparatus. The cell was submerged into a temperature-regulated water bath to control temperature.…”

Section: Solubility Measurement Equipment and Methodmentioning

confidence: 99%

Investigation of the Solubility of Methane and Ethane in Hybrid Sweetening Solutions of 2-Aminoethanol and 1-Methylpyrrolidin-2-one/Water

Ebrahiminejadhasanabadi

Nelson

Naidoo

2023

J. Chem. Eng. Data

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Hydrocarbons of natural gas are captured by the solvent in the gas-sweetening absorption process and added to losses in production. Therefore, knowledge of hydrocarbon solubilities in solvents is required to assess and overcome these losses. In this study, the solubility of the main components of natural gas, methane and ethane, in n-methyl-2-pyrrolidone and monoethanolamine-based solvents was determined at the temperature of 313.15 K and pressures up to 2.366 MPa. Mass fractions of 0.10, 0.20, and 0.30 amine in the solutions were used in measurements that were performed using a static-synthetic method. The experimental data were modeled using the Soave−Redlich−Kwong Equation of State. Experimental results showed that the replacement of the aqueous part of conventional monoethanolamine solvents with n-methyl-2-pyrrolidone increased the solubility of desirable components of natural gas which is a negative side effect. The addition of monoethanolamine to n-methyl-2-pyrrolidone outperformed the Purisol solvent in terms of carbon dioxide absorption and decreased hydrocarbon solubility.

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Section: Solubility Measurement Equipment and Methodmentioning

confidence: 99%