Thermodynamic characterization of the (CO2 + O2) binary system for the development of models for CCS processes: Accurate experimental (p, ρ, T) data and virial coefficients

Lozano-Martín, Daniel; Vega‐Maza, David; Martín, M. Carmen; Tůma, Dirk; Chamorro, César R.

doi:10.1016/j.supflu.2020.105074

Cited by 6 publications

(4 citation statements)

References 42 publications

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“…Isothermal density–pressure diagrams of CO 2 mixtures with (a) 50% Ar with experimental data (circles), (b) 50% O 2 with experimental data (circles), (c) 13.8% CO with experimental data (circles), and (d) 28.895% N 2 with experimental data (squares and circles). In all cases, soft-SAFT calculations are represented by full lines.…”

Section: Resultsmentioning

confidence: 99%

“…Figure1. Isothermal density−pressure diagrams of CO 2 mixtures with (a) 50% Ar with experimental data (circles56 ), (b) 50% O 2 with experimental data (circles57 ), (c) 13.8% CO with experimental data (circles58 ), and (d) 28.895% N 2 with experimental data (squares59 and circles60 ). In all cases, soft-SAFT calculations are represented by full lines.T h i s c o n t e n t i s o n l y l i c e n s e d f o r c o n s u m p t i o n b y A u t h o r i z e d U s e r s a f f i l i a t e d w i t h s c i t e .…”

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confidence: 99%

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Thermodynamic Characterization of Gas Mixtures for Non-Thermal Plasma CO₂ Conversion Applications with Soft-SAFT

et al. 2023

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Carbon dioxide (CO2) transformation into added-value products through non-thermal plasma (NTP) represents a novel technology of interest. The process involves, apart from CO2, mixtures of different gases such as carbon monoxide (CO), oxygen (O2), nitrogen (N2), argon (Ar), and hydrogen (H2) for subsequent CO2 methanation. In this work, a preliminary study of the thermodynamic representation of the mixtures relevant in the context of carbon capture, utilization, and storage (CCUS) processes, but focused on the NTP conversion, is presented. The thermodynamic characterization is achieved through the application of the polar soft-statistical associating fluid theory (SAFT) equation of state (EoS), which allows molecular parameterization of pure compounds and the description of mixtures at different conditions of temperature and pressure. An accurate parametrization of all gases is carried out by explicitly considering the quadrupolar nature of CO2, CO, and N2. The characterization is then used to describe several single-phase densities, derivative properties, second virial coefficients, and the vapor–liquid equilibrium (VLE) of CO2 binary mixtures with Ar, O2, CO, N2, and H2, as well as combinations between some of these gases. A parametric analysis of the impact of the binary parameters on the equilibria description is carried out to assess the temperature dependency. The results have overall shown good agreement to experimental data in most conditions using one or two binary parameters. Finally, ternary systems involving CO2, O2, Ar, and N2 have been predicted in good agreement with the experimental data, demonstrating the capacity of the model to evaluate the behavior of multicomponent gas mixtures.

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Section: Resultsmentioning

confidence: 99%

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confidence: 99%

Thermodynamic Characterization of Gas Mixtures for Non-Thermal Plasma CO₂ Conversion Applications with Soft-SAFT

et al. 2023

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“…For the design of power plants based on the Allam cycle, information on the thermal and caloric properties as well as phase equilibria of the working fluid is needed. The interest in the Allam cycle has led to a number of experimental studies of thermophysical properties of mixtures relevant for the Allam cycle in recent years [4][5][6][7][8][9][10] that can be used as basis for the thermodynamic modeling by equations of state (EOS). In principle, EOS can be used to predict mixture properties from pure component properties using predictive mixing and combination rules.…”

Section: Introductionmentioning

confidence: 88%

“…Overall, the findings reported in the literature give no clear picture, which EOS to use for modeling mixture properties of CO 2 + O 2 . Furthermore, a significant amount of new data has become available only recently and was not included in most studies discussed above [4][5][6][7][8][9][10]. Therefore, in this work, we have studied the modeling of mixture properties of CO 2 + O 2 using different EOS.…”

Section: Introductionmentioning

confidence: 99%

Modeling Thermodynamic Properties of Mixtures of CO2 + O2 in the Allam Cycle by Equations of State

Staubach,

Schwarz,

Möbius

et al. 2023

Int J Thermophys

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Different equations of state (EOS) were applied for describing thermodynamic properties of the system $$\text {CO}_{2} + \text {O}_{2},$$ CO 2 + O 2 , which is important for the Allam cycle: cubic EOS (Soave–Redlich–Kwong, Peng–Robinson), molecular-based EOS (PC-SAFT, PCP-SAFT, SAFT-VR Mie, polar soft-SAFT, BACKONE, sCPA), and multiparameter EOS (GERG-2008, EOS-CG). The pure component models were taken from the literature. The results for the mixture were compared to experimental data from the literature for two cases: (i) the thermodynamic properties of the mixture were modeled using predictive mixing and combination rules; (ii) additional binary interaction parameters were fitted to experimental data for improving the performance. In the predictive mode (i), the best results were obtained with molecular-based EOS. In the adjusted mode (ii) the best results were obtained with the multi-parameter GERG-2008 EOS and EOS-CG.

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Measurement of the (p, ρ, T) behavior of Helium, Neon, and their mixtures at temperatures from (100 to 283.15) K and pressures up to 10.0 MPa

von Preetzmann,

Span

2024

Cryogenics

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Thermodynamic characterization of the (CO2 + O2) binary system for the development of models for CCS processes: Accurate experimental (p, ρ, T) data and virial coefficients

Cited by 6 publications

References 42 publications

Thermodynamic Characterization of Gas Mixtures for Non-Thermal Plasma CO₂ Conversion Applications with Soft-SAFT

Thermodynamic Characterization of Gas Mixtures for Non-Thermal Plasma CO₂ Conversion Applications with Soft-SAFT

Modeling Thermodynamic Properties of Mixtures of CO2 + O2 in the Allam Cycle by Equations of State

Measurement of the (p, ρ, T) behavior of Helium, Neon, and their mixtures at temperatures from (100 to 283.15) K and pressures up to 10.0 MPa

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Thermodynamic characterization of the (CO2 + O2) binary system for the development of models for CCS processes: Accurate experimental (p, ρ, T) data and virial coefficients

Cited by 6 publications

References 42 publications

Thermodynamic Characterization of Gas Mixtures for Non-Thermal Plasma CO2 Conversion Applications with Soft-SAFT

Thermodynamic Characterization of Gas Mixtures for Non-Thermal Plasma CO2 Conversion Applications with Soft-SAFT

Modeling Thermodynamic Properties of Mixtures of CO2 + O2 in the Allam Cycle by Equations of State

Measurement of the (p, ρ, T) behavior of Helium, Neon, and their mixtures at temperatures from (100 to 283.15) K and pressures up to 10.0 MPa

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Thermodynamic Characterization of Gas Mixtures for Non-Thermal Plasma CO₂ Conversion Applications with Soft-SAFT

Thermodynamic Characterization of Gas Mixtures for Non-Thermal Plasma CO₂ Conversion Applications with Soft-SAFT