Solubility of CO2 in 3-amino-1-propanol and in N-methyldiethanolamine aqueous solutions: Experimental investigation and correlation using the CPA equation of state

Experimental Data and Modeling of the Co2 Solubility in 2-Methylimidazole Aqueous Solution

“…keep the ε cross and β cross of 2-MeIm-CO 2 and set the ε ch and β ch to zero, while preserving the rest of the parameter values. For the MDEA-H 2 O-CO 2 ternary system, the physical solubility and total solubility of CO 2 in the MDEA solution have been calculated using the CPA model with the parameters from literature [54]. The calculation method of physical solubility is to retain the interaction parameters k ij of MDEA-CO 2 , and the association parameters of MDEA-CO 2 adopt the CR-1 rule instead of values from the literature, while other parameters and association rules remain unchanged.…”

“…Subsequently, Wang et al [53] used a similar approach with the Peng-Robinson -Cubic-Plus-Association Equation of State (PR-CPA EoS) to model the solubility of H 2 S and CO 2 in MEA and MDEA aqueous mixtures, and the model can also accurately predict the speciation of acid gas reacting with aqueous alkanolamine solutions. Leontiadis et al [54] also used the pseudo chemical reaction approach with the CPA EoS to model the CO 2 -MPA-H 2 O and CO 2 -MDEA-H 2 O systems.…”

CO2 solubility in aqueous N‐methylcyclohexylamine (MCA) and N‐cyclohexyl‐1,3‐propanediamine (CHAP) solutions

“…The experimental procedure is described in our previous works. 23,24 Briefly, the air is removed from the high-pressure cell and, subsequently, a known amount of the aqueous solvent (around 25 g, maximum error ±0.002 g) is added. Then, 3-5 g of CO 2 , depending on the experiment, are added to the system.…”

Experimental Measurement of Carbon Dioxide Solubility in Aqueous N-Methyldiethanolamine + 2-(2-Aminoethylamino) Ethanol + Sulfolane and Diethanolamine + 2-(2-Aminoethylamino) Ethanol + Sulfolane Hybrid Solvents at Various Temperatures and High Pressure

“…1,2 Hence, numerous commercial technologies have been suggested for CO 2 capture so far. 3 Among them, alkanolamine scrubbing is the most reliable and industrially practiced technique for gas-treating purposes due to its flexibility, high removal efficiency, and inexpensive solvent. 2,4 Among alkanolamines, diethanolamine (DEA) and N-methyldiethanolamine (MDEA) are known as commercially important ones.…”

“…In the recent development of the industrial world, the foremost worldwide challenge is to lessen the CO 2 emission because of its undeniable contribution to climate change and global warming. , Hence, numerous commercial technologies have been suggested for CO 2 capture so far . Among them, alkanolamine scrubbing is the most reliable and industrially practiced technique for gas-treating purposes due to its flexibility, high removal efficiency, and inexpensive solvent. , Among alkanolamines, diethanolamine (DEA) and N -methyldiethanolamine (MDEA) are known as commercially important ones .…”