Experimental and theoretical study of CO2 solubility in N-methyl-2-pyrrolidone (NMP)

Bohloul, M.R.; Vatani, Ali; Peyghambarzadeh, S.M.

doi:10.1016/j.fluid.2013.12.019

Cited by 45 publications

(7 citation statements)

References 20 publications

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“…That is, the assumption that the vapor phase is pure is a reasonable assumption. Other researchers also confirmed this assumption in their work [1,4]. 2) After the evacuation, the amount of air in the system was neglected.…”

Section: Assumptions and Calculationsmentioning

confidence: 67%

Experimental study and thermodynamic modelling of ethylene absorption in N-methyl-2-pyrrolidone (NMP)

et al. 2020

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Determining the solubility of gases in solvents and considering non-idealities at different operating conditions are essential to design a cost-effective and energy-efficient absorption process. In this work, using a lab-made set-up, solubility of ethylene in N-methyl-2-pyrrolidone (NMP) was measured at different temperatures (278.15, 298.15, and 328.15 K) and pressures up to 14 bar, and the kinetic and equilibrium data were obtained. Accordingly, Henry’s law constants are calculated at various temperatures. Then, thermodynamic modeling was accomplished by applying Peng-Robinson equation of state (PR-EOS) and Wilson activity coefficient model, and the binary interaction parameters were estimated. By the thermodynamic modeling, positive deviation from ideal behavior was apparently observed. Due to low absolute average deviation of < 7.7%, the correlated model was able to predict the ethylene solubility in NMP with a reliable accuracy.

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Section: Assumptions and Calculationsmentioning

confidence: 67%

Experimental study and thermodynamic modelling of ethylene absorption in N-methyl-2-pyrrolidone (NMP)

et al. 2020

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“…In addition, regeneration of physical solvents is much less energy intensive since the dissolved CO 2 can be easily released through depressurization or moderate heating. Commonly studied good CO 2 solvents include methanol, Selexol (polyethylene glycol dimethyl ether), N -methyl-2-pyrrolidone (NMP), and propylene carbonate . The advantages and limitations of these solvents are summarized in Borhani’s review .…”

Section: Carbon Capture Processesmentioning

confidence: 99%

Trends in Research and Development for CO₂ Capture and Sequestration

Catanescu

Bird

et al. 2023

ACS Omega

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Technological and medical advances over the past few decades epitomize human capabilities. However, the increased life expectancies and concomitant land-use changes have significantly contributed to the release of ∼830 gigatons of CO2 into the atmosphere over the last three decades, an amount comparable to the prior two and a half centuries of CO2 emissions. The United Nations has adopted a pledge to achieve “net zero”, i.e., yearly removing as much CO2 from the atmosphere as the amount emitted due to human activities, by the year 2050. Attaining this goal will require a concerted effort by scientists, policy makers, and industries all around the globe. The development of novel materials on industrial scales to selectively remove CO2 from mixtures of gases makes it possible to mitigate CO2 emissions using a multipronged approach. Broadly, the CO2 present in the atmosphere can be captured using materials and processes for biological, chemical, and geological technologies that can sequester CO2 while also reducing our dependence on fossil-fuel reserves. In this review, we used the curated literature available in the CAS Content Collection to present a systematic analysis of the various approaches taken by scientists and industrialists to restore carbon balance in the environment. Our analysis highlights the latest trends alongside the associated challenges.

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“…However, this kind of solvent is easy to degrade, which will cause corrosion problems and high solvent losses and increase the reclaiming costs . In contrast, the physical solvents, like methanol (rectisol) or N -methyl-2-pyrollidone (NMP, Purisol), could be fully regenerated by reducing the pressure and increasing the temperature for pre-combustion CO 2 capture . However, the drawbacks are that the absorption capacity in these physical solvents is relatively low, and these solvents possibly bring corrosion to the equipment …”

Section: Introductionmentioning

confidence: 99%

Molecular Simulation and Experimental Study on Low-Viscosity Ionic Liquids for High-Efficient Capturing of CO₂

et al. 2022

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In recent decades, ionic liquids (ILs) have been developed as an ideal and reversible decarbonization solvent. However, some pitfalls, such as the low CO2 capacity and high viscosity of ILs, limit their further scale up and industrial application. Therefore, in this work, three novel functional ILs [N8881][NIA], [N8881][For], and [N8881][Ac] were synthesized after using a molecular design method to capture CO2 at 303.15–333.15 K and pressures up to 1000 kPa. The experimental results illustrate that [N8881][NIA] presents the smallest viscosity and the highest CO2 solubility. The capacity order is [N8881][NIA] > [N8881][For] > [N8881][Ac] under the same experimental conditions. The CO2 recyclability experiments using [N8881][NIA] show the stability of CO2 solubility after 5 cycles. The quantum chemistry simulations at the level of DFT/B3LYP with 6-311++G(d,p) basis sets were used to study the CO2 absorption mechanism in the studied ILs from the molecular viewpoint. Simulation results illustrated that the higher interaction energy between CO2 and ILs means more CO2 absorbed in these ILs, which agreed well with the experimental results. The atoms in molecules theory and the function of the reduced density gradient were also used to calculate the interactions in these IL–CO2 systems. Results show that the majority of these interactions present an electrostatic character.

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Experimental and theoretical study of CO2 solubility in N-methyl-2-pyrrolidone (NMP)

Cited by 45 publications

References 20 publications

Experimental study and thermodynamic modelling of ethylene absorption in N-methyl-2-pyrrolidone (NMP)

Experimental study and thermodynamic modelling of ethylene absorption in N-methyl-2-pyrrolidone (NMP)

Trends in Research and Development for CO₂ Capture and Sequestration

Molecular Simulation and Experimental Study on Low-Viscosity Ionic Liquids for High-Efficient Capturing of CO₂

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Experimental and theoretical study of CO2 solubility in N-methyl-2-pyrrolidone (NMP)

Cited by 45 publications

References 20 publications

Experimental study and thermodynamic modelling of ethylene absorption in N-methyl-2-pyrrolidone (NMP)

Experimental study and thermodynamic modelling of ethylene absorption in N-methyl-2-pyrrolidone (NMP)

Trends in Research and Development for CO2 Capture and Sequestration

Molecular Simulation and Experimental Study on Low-Viscosity Ionic Liquids for High-Efficient Capturing of CO2

Contact Info

Product

Resources

About

Trends in Research and Development for CO₂ Capture and Sequestration

Molecular Simulation and Experimental Study on Low-Viscosity Ionic Liquids for High-Efficient Capturing of CO₂