1
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Naseri Boroujeni S, Maribo-Mogensen B, Liang X, Kontogeorgis GM. Theoretical and practical investigation of ion-ion association in electrolyte solutions. J Chem Phys 2024; 160:154509. [PMID: 38639315 DOI: 10.1063/5.0198308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 03/26/2024] [Indexed: 04/20/2024] Open
Abstract
In this study, we present a new equation of state for electrolyte solutions, integrating the statistical associating fluid theory for variable range interactions utilizing the generic Mie form and binding Debye-Hückel theories. This equation of state underscores the pivotal role of ion-ion association in determining the properties of electrolyte solutions. We propose a unified framework that simultaneously examines the thermodynamic properties of electrolyte solutions and their electrical conductivity, given the profound impact of ion pairing on this transport property. Using this equation of state, we predict the liquid density, mean ionic activity coefficient, and osmotic coefficient for binary NaCl, Na2SO4, and MgSO4 aqueous solutions at 298.15 K. Additionally, we evaluate the molar conductivity of these systems by considering the fraction of free ions derived from our equation of state in conjunction with two advanced electrical conductivity models. Our results reveal that, while ion-ion association has a minimal influence on the modification of the predicted properties of sodium chloride solutions, their impact on sodium and magnesium sulfate solutions is considerably more noticeable.
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Affiliation(s)
- Saman Naseri Boroujeni
- Center for Energy Resources Engineering, Department of Chemical and Biochemical Engineering, Technical University of Denmark (DTU), Søltofts Plads, Building 229, 2800 Kgs. Lyngby, Denmark
| | - B Maribo-Mogensen
- Hafnium Labs ApS., Vestergade 16, 3rd floor, 1456 Copenhagen, Denmark
| | - X Liang
- Center for Energy Resources Engineering, Department of Chemical and Biochemical Engineering, Technical University of Denmark (DTU), Søltofts Plads, Building 229, 2800 Kgs. Lyngby, Denmark
| | - G M Kontogeorgis
- Center for Energy Resources Engineering, Department of Chemical and Biochemical Engineering, Technical University of Denmark (DTU), Søltofts Plads, Building 229, 2800 Kgs. Lyngby, Denmark
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2
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Novak N, Liang X, Kontogeorgis GM. Prediction of water anomalous properties by introducing the two-state theory in SAFT. J Chem Phys 2024; 160:104505. [PMID: 38465683 DOI: 10.1063/5.0186752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 02/14/2024] [Indexed: 03/12/2024] Open
Abstract
Water is one of the most abundant substances on earth, but it is still not entirely understood. It shows unusual behavior, and its properties present characteristic extrema unlike any other fluid. This unusual behavior has been linked to the two-state theory of water, which proposes that water forms different clusters, one with a high density and one with a low density, which may even form two distinct phases at low temperatures. Models incorporating the two-state theory manage to capture the unusual extrema of water, unlike traditional equations of state, which fail. In this work, we have derived the framework to incorporate the two-state theory of water into the Statistical-Associating-Fluid-Theory (SAFT). More specifically, we have assumed that water is an ideal solution of high density water molecules and low density water molecules that are in chemical equilibrium. Using this assumption, we have generalized the association term SAFT to allow for the simultaneous existence of the two water types, which have the same physical parameters but different association properties. We have incorporated the newly derived association term in the context of the Perturbed Chain-SAFT (PC-SAFT). The new model is referred to as PC-SAFT-Two-State (PC-SAFT-TS). Using PC-SAFT-TS, we have succeeded in predicting the characteristic extrema of water, such as its density and speed of sound maximum, etc., without loss of accuracy compared to the original PC-SAFT. This new framework is readily extended to mixtures, and PC-SAFT-TS manages to capture the solubility minimum of hydrocarbons in water in a straightforward manner.
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Affiliation(s)
- Nefeli Novak
- Center for Energy Resources Engineering, Department of Chemical and Biochemical Engineering, Technical University of Denmark, 2800 Kgs Lyngby, Denmark
| | - Xiaodong Liang
- Center for Energy Resources Engineering, Department of Chemical and Biochemical Engineering, Technical University of Denmark, 2800 Kgs Lyngby, Denmark
| | - Georgios M Kontogeorgis
- Center for Energy Resources Engineering, Department of Chemical and Biochemical Engineering, Technical University of Denmark, 2800 Kgs Lyngby, Denmark
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3
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Bernet T, Wehbe M, Febra SA, Haslam AJ, Adjiman CS, Jackson G, Galindo A. Modeling the Thermodynamic Properties of Saturated Lactones in Nonideal Mixtures with the SAFT-γ Mie Approach. JOURNAL OF CHEMICAL AND ENGINEERING DATA 2024; 69:650-678. [PMID: 38352073 PMCID: PMC10859965 DOI: 10.1021/acs.jced.3c00358] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 08/30/2023] [Indexed: 02/16/2024]
Abstract
The prediction of the thermodynamic properties of lactones is an important challenge in the flavor, fragrance, and pharmaceutical industries. Here, we develop a predictive model of the phase behavior of binary mixtures of lactones with hydrocarbons, alcohols, ketones, esters, aromatic compounds, water, and carbon dioxide. We extend the group-parameter matrix of the statistical associating fluid theory SAFT-γ Mie group-contribution method by defining a new cyclic ester group, denoted cCOO. The group is composed of two spherical Mie segments and two association electron-donating sites of type e1 that can interact with association electron-accepting sites of type H in other molecules. The model parameters of the new cCOO group interactions (1 like interaction and 17 unlike interactions) are characterized to represent target experimental data of physical properties of pure fluids (vapor pressure, single-phase density, and vaporization enthalpy) and mixtures (vapor-liquid equilibria, liquid-liquid equilibria, solid-liquid equilibria, density, and excess enthalpy). The robustness of the model is assessed by comparing theoretical predictions with experimental data, mainly for oxolan-2-one, 5-methyloxolan-2-one, and oxepan-2-one (also referred to as γ-butyrolactone, γ-valerolactone, and ε-caprolactone, respectively). The calculations are found to be in very good quantitative agreement with experiments. The proposed model allows for accurate predictions of the thermodynamic properties and highly nonideal phase behavior of the systems of interest, such as azeotrope compositions. It can be used to support the development of novel molecules and manufacturing processes.
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Affiliation(s)
- Thomas Bernet
- Department
of Chemical Engineering, Sargent Centre for Process Systems Engineering,
Institute for Molecular Science and Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Malak Wehbe
- Department
of Chemical Engineering, Sargent Centre for Process Systems Engineering,
Institute for Molecular Science and Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Sara A. Febra
- Department
of Chemical Engineering, Sargent Centre for Process Systems Engineering,
Institute for Molecular Science and Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Andrew J. Haslam
- Department
of Chemical Engineering, Sargent Centre for Process Systems Engineering,
Institute for Molecular Science and Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Claire S. Adjiman
- Department
of Chemical Engineering, Sargent Centre for Process Systems Engineering,
Institute for Molecular Science and Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - George Jackson
- Department
of Chemical Engineering, Sargent Centre for Process Systems Engineering,
Institute for Molecular Science and Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Amparo Galindo
- Department
of Chemical Engineering, Sargent Centre for Process Systems Engineering,
Institute for Molecular Science and Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
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4
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Barthes A, Bernet T, Grégoire D, Miqueu C. A molecular density functional theory for associating fluids in 3D geometries. J Chem Phys 2024; 160:054704. [PMID: 38341691 DOI: 10.1063/5.0180795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 01/03/2024] [Indexed: 02/13/2024] Open
Abstract
A new free-energy functional is proposed for inhomogeneous associating fluids. The general formulation of Wertheim's thermodynamic perturbation theory is considered as the starting point of the derivation. We apply the hypotheses of the statistical associating fluid theory in the classical density functional theory (DFT) framework to obtain a tractable expression of the free-energy functional for inhomogeneous associating fluids. Specific weighted functions are introduced in our framework to describe association interactions for a fluid under confinement. These weighted functions have a mathematical structure similar to the weighted densities of the fundamental-measure theory (i.e., they can be expressed as convolution products) such that they can be efficiently evaluated with Fourier transforms in a 3D space. The resulting free-energy functional can be employed to determine the microscopic structure of inhomogeneous associating fluids of arbitrary 3D geometry. The new model is first compared with Monte Carlo simulations and previous versions of DFT for a planar hard wall system in order to check its consistency in a 1D case. As an example of application in a 3D configuration, we then investigate the extreme confinement of an associating hard-sphere fluid inside an anisotropic open cavity with a shape that mimics a simplified model of zeolite. Both the density distribution and the corresponding molecular bonding profile are given, revealing complementary information to understand the structure of the associating fluid inside the cavity network. The impact of the degree of association on the preferential positions of the molecules inside the cavity is investigated as well as the competition between association and steric effect on adsorption.
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Affiliation(s)
- Antoine Barthes
- Universite de Pau et des Pays de l'Adour, E2S UPPA, CNRS, LFCR, Anglet, France
| | - Thomas Bernet
- Department of Chemical Engineering, Sargent Centre for Process Systems Engineering, Institute for Molecular Science and Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - David Grégoire
- Universite de Pau et des Pays de l'Adour, E2S UPPA, CNRS, LFCR, Anglet, France
- Institut Universitaire de France, Paris, France
| | - Christelle Miqueu
- Universite de Pau et des Pays de l'Adour, E2S UPPA, CNRS, LFCR, Anglet, France
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5
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Valsecchi M, Galindo A, Jackson G. Modeling Sorption of Hydrocarbons in Polyethylene with the SAFT-γ Mie Approach Combined with a Statistical-Mechanical Model to Describe Semicrystalline Polymers. Macromolecules 2023; 56:9952-9968. [PMID: 38161323 PMCID: PMC10753906 DOI: 10.1021/acs.macromol.3c01336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 09/26/2023] [Indexed: 01/03/2024]
Abstract
A recently developed statistical-mechanical model is applied systematically to estimate the fraction of tie-molecules (polymer chains linking different crystals directly or via entanglements) in semicrystalline polyethylene (PE) samples. The amorphous domains of the polymer are divided into constrained interlamellar domains and "free" outer-lamellar domains. A set of model parameters is assigned to each sample by correlating previous experimental measurements and minimizing the difference between the predicted solubility of pure hydrocarbons in the sample and the experimental values. We show that the sorption isotherms of multiple pure fluids in each sample can be described by a single parameter set, proving that the polymer-solute interactions (described accurately by the SAFT-γ Mie EoS) are decoupled from the sample-specific properties of the polymer. We find that ∼30% of the crystalline stems in the lamellae of PE are connected to tie-molecules, within the bounds suggested by previous theoretical and computational work. The transferability of the sample-specific parameters is assessed by predicting cosolubility effects and solubility at different temperatures, leading to good agreement with experimental data.
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Affiliation(s)
- Michele Valsecchi
- Department
of Materials, Imperial College London, South Kensington Campus, London SW7 2AZ, U.K.
- Department
of Chemical Engineering, Imperial College
London, South Kensington
Campus, London SW7 2AZ, U.K.
| | - Amparo Galindo
- Department
of Chemical Engineering, Imperial College
London, South Kensington
Campus, London SW7 2AZ, U.K.
| | - George Jackson
- Department
of Chemical Engineering, Imperial College
London, South Kensington
Campus, London SW7 2AZ, U.K.
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6
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Novak N, Kontogeorgis GM, Castier M, Economou IG. Mixed Solvent Electrolyte Solutions: A Review and Calculations with the eSAFT-VR Mie Equation of State. Ind Eng Chem Res 2023; 62:13646-13665. [PMID: 37663168 PMCID: PMC10472441 DOI: 10.1021/acs.iecr.3c00717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 06/04/2023] [Accepted: 06/09/2023] [Indexed: 09/05/2023]
Abstract
In this work, mixed-solvent mean ionic activity coefficients (MIAC), vapor-liquid equilibrium (VLE), and liquid-liquid equilibrium (LLE) of electrolyte solutions have been addressed. An extended literature review of existing electrolyte activity coefficient models (eGE) and electrolyte equations of state (eEoS) for modeling mixed solvent electrolyte systems is first presented, focusing on the details of the models in terms of physical and electrolyte terms, relative static permittivity, and parameterization. The analysis of this literature reveals that the property predictions can be ranked, from the easiest to the most difficult, in the following order: VLE, MIAC, and LLE. We have then used our previously developed eSAFT-VR Mie model to predict MIAC, VLE, and LLE in mixed solvents without fitting any new adjustable parameters. The model was parameterized on MIAC of aqueous electrolyte solutions and successfully extended to nonaqueous, single solvent electrolyte solutions without any new adjustable parameters by using a salt-dependent expression for the relative static permittivity. Our approach yields excellent results for MIAC and VLE of mixed solvent electrolyte solutions, while being fully predictive. LLE is significantly more challenging, and an accurate model for the salt-free solution is crucial for accurate calculations. When the compositions of the two phases in the binary salt-free system are accurately captured, then the electrolyte extension of our model shows a lot of potential and is currently among the best eEoS for LLE prediction in the literature.
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Affiliation(s)
- Nefeli Novak
- National
Center for Scientific Research “Demokritos”, Institute of Nanoscience and Nanotechnology, Molecular
Thermodynamics and Modelling of Materials Laboratory, GR-153 10 Aghia
Paraskevi Attikis, Greece
- Center
for Energy Resources Engineering, Department of Chemical and Biochemical
Engineering, Technical University of Denmark, 2800 Kgs Lyngby, Denmark
| | - Georgios M. Kontogeorgis
- Center
for Energy Resources Engineering, Department of Chemical and Biochemical
Engineering, Technical University of Denmark, 2800 Kgs Lyngby, Denmark
| | - Marcelo Castier
- Chemical
Engineering Program, Texas A&M University
at Qatar, Education City, PO Box 23874, Doha, Qatar
- Polytechnic
Faculty, National University of Asunción, 2111 San Lorenzo, Paraguay
| | - Ioannis G. Economou
- National
Center for Scientific Research “Demokritos”, Institute of Nanoscience and Nanotechnology, Molecular
Thermodynamics and Modelling of Materials Laboratory, GR-153 10 Aghia
Paraskevi Attikis, Greece
- Chemical
Engineering Program, Texas A&M University
at Qatar, Education City, PO Box 23874, Doha, Qatar
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7
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Klajmon M, Nezbeda I. Assessing the quality of SAFT equations for the vapor–liquid equilibrium of pure water. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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8
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Valsecchi M, Ramadani J, Williams D, Galindo A, Jackson G. Influence of Tie-Molecules and Microstructure on the Fluid Solubility in Semicrystalline Polymers. J Phys Chem B 2022; 126:9059-9088. [DOI: 10.1021/acs.jpcb.2c04600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Michele Valsecchi
- Department of Materials, Imperial College London, South Kensington Campus, LondonSW7 2AZ, U.K
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, LondonSW7 2AZ, U.K
| | - Jona Ramadani
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, LondonSW7 2AZ, U.K
| | - Daryl Williams
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, LondonSW7 2AZ, U.K
| | - Amparo Galindo
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, LondonSW7 2AZ, U.K
| | - George Jackson
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, LondonSW7 2AZ, U.K
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9
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Tsochantaris E, Muthachikavil AV, Peng B, Liang X, Kontogeorgis GM. Multiple insights call for revision of modern thermodynamic models to account for structural fluctuations in water. AIChE J 2022; 68:e17891. [PMID: 36591369 PMCID: PMC9787682 DOI: 10.1002/aic.17891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 06/29/2022] [Accepted: 08/15/2022] [Indexed: 01/04/2023]
Abstract
Modern thermodynamic models incorporate the concept of association (hydrogen bonding) and they can describe very satisfactorily many properties of water containing mixtures. They have not been successful in representing water's anomalous properties and this work provides a possible explanation. We have analyzed and interpreted recent experimental data, molecular simulation results, and two-state theory approaches and compared against the predictions from thermodynamic models. We show that the dominance of the tetrahedral structure implemented in modern thermodynamic models may be the reason for their failure for describing water systems. While this study does not prove the two-state theories for water, it indicates that a high level of tetrahedral structure of water is not in agreement with water's anomalous properties when used in thermodynamic models.
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Affiliation(s)
- Evangelos Tsochantaris
- Department of Chemical and Biochemical Engineering, Center for Energy Resources EngineeringTechnical University of DenmarkLyngbyDenmark
| | - Aswin V. Muthachikavil
- Department of Chemical and Biochemical Engineering, Center for Energy Resources EngineeringTechnical University of DenmarkLyngbyDenmark
| | - Baoliang Peng
- Research Institute of Petroleum Exploration & Development (RIPED), PetroChinaBeijingChina
| | - Xiaodong Liang
- Department of Chemical and Biochemical Engineering, Center for Energy Resources EngineeringTechnical University of DenmarkLyngbyDenmark
| | - Georgios M. Kontogeorgis
- Department of Chemical and Biochemical Engineering, Center for Energy Resources EngineeringTechnical University of DenmarkLyngbyDenmark
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10
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Nezbeda I, Klajmon M, Hrubý J. Thermodynamic properties of water from SAFT and CPA equations of state: A comprehensive assessment. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119769] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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11
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Graham EJ, Forte E, Burger J, Galindo A, Jackson G, Adjiman CS. Multi-objective optimization of equation of state molecular parameters: SAFT-VR Mie models for water. Comput Chem Eng 2022. [DOI: 10.1016/j.compchemeng.2022.108015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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12
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Smith SAM, Cripwell JT, Schwarz CE. Application of Renormalization Corrections to SAFT-VR Mie. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c02004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sonja A. M. Smith
- Department of Process Engineering, Stellenbosch University, Banghoek Road, Stellenbosch 7600, South Africa
| | - Jamie T. Cripwell
- Department of Process Engineering, Stellenbosch University, Banghoek Road, Stellenbosch 7600, South Africa
| | - Cara E. Schwarz
- Department of Process Engineering, Stellenbosch University, Banghoek Road, Stellenbosch 7600, South Africa
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13
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Ascani M, Pabsch D, Klinksiek M, Gajardo-Parra N, Sadowski G, Held C. Prediction of pH in multiphase multicomponent systems with ePC-SAFT advanced. Chem Commun (Camb) 2022; 58:8436-8439. [PMID: 35796637 DOI: 10.1039/d2cc02943j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Proton activity, which is usually expressed as a pH value, is among the most important properties in the design of chemical and biochemical processes as it determines the dissociation of species in aqueous mixtures. This article addresses the prediction of pH values in multiphase systems based on the IUPAC definition via proton activity. The required proton activity coefficients were predicted using the thermodynamic equation of state ePC-SAFT advanced. The developed framework considers reaction equilibria and phase equilibria (vapor-liquid and liquid-liquid) to predict pH in the equilibrated liquid phases.
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Affiliation(s)
- Moreno Ascani
- Laboratory of Thermodynamics, Department of Biochemical and Chemical Engineering, TU Dortmund University, Emil-Figge-Str. 70, 44227 Dortmund, Germany.
| | - Daniel Pabsch
- Laboratory of Thermodynamics, Department of Biochemical and Chemical Engineering, TU Dortmund University, Emil-Figge-Str. 70, 44227 Dortmund, Germany.
| | - Marcel Klinksiek
- Laboratory of Thermodynamics, Department of Biochemical and Chemical Engineering, TU Dortmund University, Emil-Figge-Str. 70, 44227 Dortmund, Germany.
| | - Nicolás Gajardo-Parra
- Laboratory of Thermodynamics, Department of Biochemical and Chemical Engineering, TU Dortmund University, Emil-Figge-Str. 70, 44227 Dortmund, Germany.
| | - Gabriele Sadowski
- Laboratory of Thermodynamics, Department of Biochemical and Chemical Engineering, TU Dortmund University, Emil-Figge-Str. 70, 44227 Dortmund, Germany.
| | - Christoph Held
- Laboratory of Thermodynamics, Department of Biochemical and Chemical Engineering, TU Dortmund University, Emil-Figge-Str. 70, 44227 Dortmund, Germany.
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14
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Measurements and Modelling of Vapour–Liquid Equilibrium for (H2O + N2) and (CO2 + H2O + N2) Systems at Temperatures between 323 and 473 K and Pressures up to 20 MPa. ENERGIES 2022. [DOI: 10.3390/en15113936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
Understanding the phase behaviour of (CO2 + water + permanent gas) systems is critical for implementing carbon capture and storage (CCS) processes, a key technology in reducing CO2 emissions. In this paper, phase behaviour data for (H2O + N2) and (CO2 + H2O + N2) systems are reported at temperatures from 323 to 473 K and pressures up to 20 MPa. In the ternary system, the mole ratio between CO2 and N2 was 1. Experiments were conducted in a newly designed analytical apparatus that includes two syringe pumps for fluid injection, a high-pressure equilibrium vessel, heater aluminium jacket, Rolsi sampling valves and an online gas chromatograph (GC) for composition determination. A high-sensitivity pulsed discharge detector installed in the GC was used to measure the low levels of dissolved nitrogen in the aqueous phase and low water levels in the vapour phase. The experimental data were compared with the calculation based on the γ-φ and SAFT-γ Mie approaches. In the SAFT-γ Mie model, the like parameters for N2 had to be determined. We also obtained the unlike dispersion energy for the (H2O + N2) system and the unlike repulsive exponent and dispersion energy for the (CO2 + N2) system. This was done to improve the prediction of SAFT-γ Mie model. For the (H2O + N2) binary system, the results show that the solubility of nitrogen in the aqueous phase was calculated better by the γ-φ approach rather than the SAFT-γ Mie model, whereas SAFT-γ Mie performed better for the prediction of the vapour phase. For the (CO2 + H2O + N2) ternary systems, both models predicted the experimental data for each phase with good agreement.
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15
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Walker PJ, Yew HW, Riedemann A. Clapeyron.jl: An Extensible, Open-Source Fluid Thermodynamics Toolkit. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00326] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pierre J. Walker
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
- Department of Chemical Engineering, Imperial College London, London SW7 2AZ, U.K
| | - Hon-Wa Yew
- Department of Chemical Engineering, Imperial College London, London SW7 2AZ, U.K
| | - Andrés Riedemann
- Departamento de Ingeniería Química, Universidad de Concepción, Concepción 4030000, Chile
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16
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Walker PJ, Zhao T, Haslam AJ, Jackson G. Ab initio development of generalized Lennard-Jones (Mie) force fields for predictions of thermodynamic properties in advanced molecular-based SAFT equations of state. J Chem Phys 2022; 156:154106. [PMID: 35459299 DOI: 10.1063/5.0087125] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
A methodology for obtaining molecular parameters of a modified statistical associating fluid theory for variable-range interactions of Mie form (SAFT-VR Mie) equation of state (EoS) from ab initio calculations is proposed for non-associative species that can be modeled as single spherical segments. The methodology provides a strategy to map interatomic or intermolecular potentials obtained from ab initio quantum-chemistry calculations to the corresponding Mie potentials that can be used within the SAFT-VR Mie EoS. The inclusion of corrections for quantum and many-body effects allows for an excellent, fully predictive description of the vapor-liquid envelope and other bulk thermodynamic properties of noble gases; this description is of similar or superior quality to that obtained using SAFT-VR Mie with parameters regressed in the traditional way using experimental thermodynamic-property data. The methodology is extended to an anisotropic species, methane, where similar levels of accuracy are obtained. The efficacy of using less-accurate quantum-chemistry methods in this methodology is explored, showing that these methods do not provide satisfactory results, although we note that the description is nevertheless substantially better than those obtained using the conductor-like screening model for describing real solvents (COSMO-RS), the only other fully predictive ab initio method currently available. Overall, the reliance on thermophysical data is completely dispensed with, providing the first extensible, wholly predictive SAFT-type EoSs.
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Affiliation(s)
- Pierre J Walker
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Tianpu Zhao
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Andrew J Haslam
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - George Jackson
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
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17
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Khanpour M. A unified derivation of Percus–Yevick and hyper-netted chain integral equations in liquid state theory. Mol Phys 2021. [DOI: 10.1080/00268976.2021.2001065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Mehrdad Khanpour
- Department of Chemistry, Amol Branch, Islamic Azad University, Amol, Iran
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18
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Novak N, Kontogeorgis GM, Castier M, Economou IG. Modeling of Gas Solubility in Aqueous Electrolyte Solutions with the eSAFT-VR Mie Equation of State. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c02923] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Nefeli Novak
- National Center for Scientific Research “Demokritos”, Institute of Nanoscience and Nanotechnology, Molecular Thermodynamics and Modelling of Materials Laboratory, Aghia Paraskevi Attikis GR−153 10, Greece
- Center for Energy Resources Engineering, Department of Chemical and Biochemical Engineering, Technical University of Denmark, Kgs Lyngby 2800, Denmark
| | - Georgios M. Kontogeorgis
- Center for Energy Resources Engineering, Department of Chemical and Biochemical Engineering, Technical University of Denmark, Kgs Lyngby 2800, Denmark
| | - Marcelo Castier
- Universidad Paraguayo Alemana, 1279 Lope de Vega, San Lorenzo 1279, Paraguay
- Chemical Engineering Program, Education City, Texas A&M University at Qatar, P.O. Box 23874, Doha 23874, Qatar
| | - Ioannis G. Economou
- National Center for Scientific Research “Demokritos”, Institute of Nanoscience and Nanotechnology, Molecular Thermodynamics and Modelling of Materials Laboratory, Aghia Paraskevi Attikis GR−153 10, Greece
- Chemical Engineering Program, Education City, Texas A&M University at Qatar, P.O. Box 23874, Doha 23874, Qatar
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Morgado P, Barras J, Galindo A, Jackson G, Filipe EJM. Solubility of water in mixtures of ( n-alkanes + n-perfluoroalkanes) and in n-perfluoroalkylalkanes: experiments and modelling with the SAFT- γ Mie group-contribution approach. Mol Phys 2021. [DOI: 10.1080/00268976.2021.1910743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Pedro Morgado
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
| | - João Barras
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
- Department of Chemical Engineering, Centre for Process Systems Engineering, Imperial College London, South Kensington Campus, London, UK
| | - Amparo Galindo
- Department of Chemical Engineering, Centre for Process Systems Engineering, Imperial College London, South Kensington Campus, London, UK
| | - George Jackson
- Department of Chemical Engineering, Centre for Process Systems Engineering, Imperial College London, South Kensington Campus, London, UK
| | - Eduardo J. M. Filipe
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal
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20
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Marshall BD. A modified perturbed chain‐statistical associating fluid theory equation of state for water which includes an association dependent hard sphere diameter. AIChE J 2021. [DOI: 10.1002/aic.17342] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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21
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Novak N, Kontogeorgis GM, Castier M, Economou IG. Water–Hydrocarbon Phase Equilibria with SAFT-VR Mie Equation of State. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c00480] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nefeli Novak
- Molecular Thermodynamics and Modelling of Materials Laboratory, National Center for Scientific Research “Demokritos”, Institute of Nanoscience and Nanotechnology, GR-153 10 Aghia Paraskevi Attikis, Greece
- Center for Energy Resources Engineering, Department of Chemical and Biochemical Engineering, Technical University of Denmark, 2800 Kgs Lyngby, Denmark
| | - Georgios M. Kontogeorgis
- Center for Energy Resources Engineering, Department of Chemical and Biochemical Engineering, Technical University of Denmark, 2800 Kgs Lyngby, Denmark
| | - Marcelo Castier
- German-Paraguayan University, 2160 San Lorenzo, Paraguay
- Chemical Engineering Program, Texas A&M University at Qatar, Education City, P.O. Box 23874, Doha, Qatar
| | - Ioannis G. Economou
- Molecular Thermodynamics and Modelling of Materials Laboratory, National Center for Scientific Research “Demokritos”, Institute of Nanoscience and Nanotechnology, GR-153 10 Aghia Paraskevi Attikis, Greece
- Chemical Engineering Program, Texas A&M University at Qatar, Education City, P.O. Box 23874, Doha, Qatar
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22
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Mejía A, Müller EA, Chaparro Maldonado G. SGTPy: A Python Code for Calculating the Interfacial Properties of Fluids Based on the Square Gradient Theory Using the SAFT-VR Mie Equation of State. J Chem Inf Model 2021; 61:1244-1250. [PMID: 33595304 DOI: 10.1021/acs.jcim.0c01324] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In this work, we showcase SGTPy, a Python open-source code developed to calculate interfacial properties (interfacial concentration profiles and interfacial or surface tension) for pure fluids and fluid mixtures. SGTPy employs the Square Gradient Theory (SGT) coupled to the Statistical Associating Fluid Theory of Variable Range employing a Mie potential (SAFT-VR-Mie). SGTPy uses standard Python numerical packages (i.e., NumPy, SciPy) and can be used under Jupyter notebooks. Its features are the calculation of phase stability, phase equilibria, interfacial properties, and the optimization of the SGT and SAFT parameters for vapor-liquid, liquid-liquid and vapor-liquid-liquid equilibria for pure fluids and multicomponent mixtures. Phase equilibrium calculations include two-phase and multiphase flash, bubble and dew points, and the tangent plane distance. For the computation of interfacial properties, SGTPy incorporates several options to solve the interfacial concentration, such as the path technique, an auxiliary time function, and orthogonal collocation. Additionally, the SGTPy code allows the inclusion of subroutines from other languages (e.g., Fortran, and C++) through Cython and f2py Python tools, which opens the possibility for future extensions or recycling tested and optimized subroutines from other codes. Supporting Information includes a review of the theoretical expressions required to couple SAFT-VR-Mie equation of state with the SGT. The use and capabilities of SGTPy are illustrated through step by step examples written on Jupyter notebooks for the cases of pure fluids and binary and ternary mixtures in bi- and three- phasic equilibria. The SGTPy code can be downloaded from https://github.com/gustavochm/SGTPy.
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Affiliation(s)
- Andrés Mejía
- Departamento de Ingeniería Química, Universidad de Concepción, Concepción 4030000, Chile
| | - Erich A Müller
- Department of Chemical Engineering, Imperial College London, London SW7 2AZ, United Kingdom
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23
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Perdomo FA, Khalit SH, Adjiman CS, Galindo A, Jackson G. Description of the thermodynamic properties and fluid‐phase behavior of aqueous solutions of linear, branched, and cyclic amines. AIChE J 2021. [DOI: 10.1002/aic.17194] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Felipe A. Perdomo
- Department of Chemical Engineering, Centre for Process Systems Engineering, and Institute for Molecular Science and Engineering Imperial College London, South Kensington Campus London UK
| | - Siti H. Khalit
- Department of Chemical Engineering, Centre for Process Systems Engineering, and Institute for Molecular Science and Engineering Imperial College London, South Kensington Campus London UK
- PETRONAS Research Sdn Bhd Kuala Lumpur Malaysia
| | - Claire S. Adjiman
- Department of Chemical Engineering, Centre for Process Systems Engineering, and Institute for Molecular Science and Engineering Imperial College London, South Kensington Campus London UK
| | - Amparo Galindo
- Department of Chemical Engineering, Centre for Process Systems Engineering, and Institute for Molecular Science and Engineering Imperial College London, South Kensington Campus London UK
| | - George Jackson
- Department of Chemical Engineering, Centre for Process Systems Engineering, and Institute for Molecular Science and Engineering Imperial College London, South Kensington Campus London UK
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Polishuk I, Cea-Klapp E, Garrido JM. Comparison of SAFT-VR-Mie and CP-PC-SAFT in Estimating the Phase Behavior of Acetone + n-Alkane Systems. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c04435] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ilya Polishuk
- Department of Chemical Engineering, Ariel University, 40700 Ariel, Israel
| | - Esteban Cea-Klapp
- Departamento de Ingeniería Química, Universidad de Concepción, 4070386 Concepción, Chile
| | - José Matías Garrido
- Departamento de Ingeniería Química, Universidad de Concepción, 4070386 Concepción, Chile
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25
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Off-Design Operation of Conventional and Phase-Change CO2 Capture Solvents and Mixtures: A Systematic Assessment Approach. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10155316] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Solvent-based CO2 capture technologies hold promise for future implementation but conventional solvents incur significant energy penalties and capture costs. Phase-change solvents enable a significant reduction in the regeneration energy but their performance has only been investigated under steady-state operation. In the current work, we employed a systematic approach for the evaluation of conventional solvents and mixtures, as well as phase-change solvents under the influence of disturbances. Sensitivity analysis was used to identify the impact that operating parameter variations and different solvents exert on multiple CO2 capture performance indicators within a wide operating range. The resulting capture process performance was then assessed for each solvent within a multi-criteria approach, which simultaneously accounted for off-design conditions and nominal operation. The considered performance criteria included the regeneration energy, solvent mass flow rate, cost and cyclic capacity, net energy penalty from integration with an upstream power plant, and lost revenue from parasitic losses. The 10 investigated solvents included the phase-change solvents methyl-cyclohexylamine (MCA) and 2-(diethylamino)ethanol/3-(methylamino)propylamine (DEEA/MAPA). We found that the conventional mixture diethanolamine/methyldiethanolamine (DEA/MDEA) and the phase-change solvent DEEA/MAPA exhibited both resilience to disturbances and desirable nominal operation for multiple performance indicators simultaneously.
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26
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Kohns M, Lazarou G, Kournopoulos S, Forte E, Perdomo FA, Jackson G, Adjiman CS, Galindo A. Predictive models for the phase behaviour and solution properties of weak electrolytes: nitric, sulphuric, and carbonic acids. Phys Chem Chem Phys 2020; 22:15248-15269. [PMID: 32609107 DOI: 10.1039/c9cp06795g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The distribution of ionic species in electrolyte systems is important in many fields of science and engineering, ranging from the study of degradation mechanisms to the design of systems for electrochemical energy storage. Often, other phenomena closely related to ionic speciation, such as ion pairing, clustering and hydrogen bonding, which are difficult to investigate experimentally, are also of interest. Here, we develop an accurate molecular approach, accounting for reactions as well as association and ion pairing, to deliver a predictive framework that helps validate experiment and guides future modelling of speciation phenomena of weak electrolytes. We extend the SAFT-VRE Mie equation of state [D. K. Eriksen et al., Mol. Phys., 2016, 114, 2724-2749] to study aqueous solutions of nitric, sulphuric, and carbonic acids, considering complete and partially dissociated models. In order to incorporate the dissociation equilibria, correlations to experimental data for the relevant thermodynamic equilibrium constants of the dissociation reactions are taken from the literature and are imposed as a boundary condition in the calculations. The models for water, the hydronium ion, and carbon dioxide are treated as transferable and are taken from our previous work. We present new molecular models for nitric acid, and the nitrate, bisulfate, sulfate, and bicarbonate anions. The resulting framework is used to predict a range of phase behaviour and solution properties of the aqueous acids over wide ranges of concentration and temperature, including the degree of dissociation, as well as the activity coefficients of the ionic species, and the activity of water and osmotic coefficient, density, and vapour pressure of the solutions. The SAFT-VRE Mie models obtained in this manner provide a means of elucidating the mechanisms of association and ion pairing in the systems studied, complementing the experimental observations reported in the literature.
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Affiliation(s)
- Maximilian Kohns
- Department of Chemical Engineering, Centre for Process Systems Engineering and Institute for Molecular Science and Engineering, South Kensington Campus, Imperial College London, London SW7 2AZ, UK.
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27
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Di Lecce S, Lazarou G, Khalit SH, Pugh D, Adjiman CS, Jackson G, Galindo A, McQueen L. Correction: Modelling and prediction of the thermophysical properties of aqueous mixtures of choline geranate and geranic acid (CAGE) using SAFT-γ Mie. RSC Adv 2020; 10:19463-19465. [PMID: 35532400 PMCID: PMC9054199 DOI: 10.1039/d0ra90058c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 05/06/2020] [Indexed: 11/21/2022] Open
Abstract
Correction for ‘Modelling and prediction of the thermophysical properties of aqueous mixtures of choline geranate and geranic acid (CAGE) using SAFT-γ Mie’ by Silvia Di Lecce et al., RSC Adv., 2019, 9, 38017–38031. DOI: 10.1039/C9RA07057E
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Affiliation(s)
- Silvia Di Lecce
- Department of Chemical Engineering, Centre for Process Systems Engineering, Institute for Molecular Science and Engineering, South Kensington Campus, Imperial College London London SW7 2AZ UK
| | - Georgia Lazarou
- Department of Chemical Engineering, Centre for Process Systems Engineering, Institute for Molecular Science and Engineering, South Kensington Campus, Imperial College London London SW7 2AZ UK
| | - Siti H Khalit
- Department of Chemical Engineering, Centre for Process Systems Engineering, Institute for Molecular Science and Engineering, South Kensington Campus, Imperial College London London SW7 2AZ UK
| | - David Pugh
- Department of Chemistry, Molecular Sciences Research Hub, White City Campus, Imperial College London London W12 0BZ UK
| | - Claire S Adjiman
- Department of Chemical Engineering, Centre for Process Systems Engineering, Institute for Molecular Science and Engineering, South Kensington Campus, Imperial College London London SW7 2AZ UK
| | - George Jackson
- Department of Chemical Engineering, Centre for Process Systems Engineering, Institute for Molecular Science and Engineering, South Kensington Campus, Imperial College London London SW7 2AZ UK
| | - Amparo Galindo
- Department of Chemical Engineering, Centre for Process Systems Engineering, Institute for Molecular Science and Engineering, South Kensington Campus, Imperial College London London SW7 2AZ UK
| | - Lisa McQueen
- Chemical Development, GSK 1250 S Collegeville Rd Collegeville PA 19426 USA
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28
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Kontogeorgis GM, Liang X, Arya A, Tsivintzelis I. Equations of state in three centuries. Are we closer to arriving to a single model for all applications? CHEMICAL ENGINEERING SCIENCE: X 2020. [DOI: 10.1016/j.cesx.2020.100060] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
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29
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Nascimento FP, Paredes ML, Bernardes APD, Pessoa FL. Phase behavior of CO2/toluene, CO2/n-decane and CO2/toluene/n-decane: Experimental measurements and thermodynamic modeling with SAFT-VR Mie equation of state. J Supercrit Fluids 2019. [DOI: 10.1016/j.supflu.2019.104634] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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31
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Febra SA, Aasen A, Adjiman CS, Jackson G, Galindo A. Intramolecular bonding in a statistical associating fluid theory of ring aggregates. Mol Phys 2019. [DOI: 10.1080/00268976.2019.1671619] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- S. A. Febra
- Department of Chemical Engineering, Centre for Process Systems Engineering, Institute for Molecular Science and Engineering, Imperial College London, London, UK
| | - A. Aasen
- Department of Energy and Process Engineering, Norwegian University of Science and Technology, Trondheim, Norway
| | - C. S. Adjiman
- Department of Chemical Engineering, Centre for Process Systems Engineering, Institute for Molecular Science and Engineering, Imperial College London, London, UK
| | - G. Jackson
- Department of Chemical Engineering, Centre for Process Systems Engineering, Institute for Molecular Science and Engineering, Imperial College London, London, UK
| | - A. Galindo
- Department of Chemical Engineering, Centre for Process Systems Engineering, Institute for Molecular Science and Engineering, Imperial College London, London, UK
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32
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Polishuk I, Garrido JM. Comparison of SAFT-VR-Mie and CP-PC-SAFT in predicting phase behavior of associating systems IV. Methanol–aliphatic hydrocarbons. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111321] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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33
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Trejos VM, Pizio O, Sokołowski S. On the interdigitation of molecular brushes and solvation force upon adsorption of water in slit-like pores with grafted chains. Density functional approach. J Chem Phys 2019. [DOI: 10.1063/1.5116128] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Affiliation(s)
- Víctor M. Trejos
- Instituto de Ciencias Básicas e Ingeniería, Universidad Autónoma del Estado de Hidalgo, Carretera Pachuca-Tulancingo Km. 4.5, Col. Carboneras, C.P. 42184, Mineral de la Reforma, Hidalgo, Mexico
| | - Orest Pizio
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, 04510, Cd. de México, Mexico
| | - Stefan Sokołowski
- Department for the Modelling of Physico-Chemical Processes, Maria Curie-Skłodowska University, Lublin 20-031, Poland
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34
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Pervaje AK, Walker CC, Santiso EE. Molecular simulation of polymers with a SAFT-γ Mie approach. MOLECULAR SIMULATION 2019. [DOI: 10.1080/08927022.2019.1645331] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Amulya K. Pervaje
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC, USA
| | - Christopher C. Walker
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC, USA
| | - Erik E. Santiso
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC, USA
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35
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Polishuk I, Garrido JM. Comparison of SAFT-VR-Mie and CP-PC-SAFT in predicting phase behavior of associating systems III. Aliphatic hydrocarbons - 1-propanol, 1-butanol and 1-pentanol. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.01.151] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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36
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Lopes JT, M. Franco LF. New Thermodynamic Approach for Nonspherical Molecules Based on a Perturbation Theory for Ellipsoids. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b00766] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Joyce T. Lopes
- School of Chemical Engineering, University of Campinas, Av. Albert Einstein 500, 13083-852 Campinas, Brazil
| | - Luís F. M. Franco
- School of Chemical Engineering, University of Campinas, Av. Albert Einstein 500, 13083-852 Campinas, Brazil
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37
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Di Lecce S, Lazarou G, Khalit SH, Adjiman CS, Jackson G, Galindo A, McQueen L. Modelling and prediction of the thermophysical properties of aqueous mixtures of choline geranate and geranic acid (CAGE) using SAFT-γ Mie. RSC Adv 2019; 9:38017-38031. [PMID: 35541791 PMCID: PMC9075776 DOI: 10.1039/c9ra07057e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 05/22/2020] [Accepted: 10/25/2019] [Indexed: 12/18/2022] Open
Abstract
Deep-eutectic solvents and room temperature ionic liquids are increasingly recognised as appropriate materials for use as active pharmaceutical ingredients and formulation additives. Aqueous mixtures of choline and geranate (CAGE), in particular, have been shown to offer promising biomedical properties but understanding the thermophysical behaviour of these mixtures remains limited. Here, we develop interaction potentials for use in the SAFT-γ Mie group-contribution approach, to study the thermodynamic properties and phase behaviour of aqueous mixtures of choline geranate and geranic acid. The determination of the interaction parameters between chemical functional groups is carried out in a sequential fashion, characterising each group based on those previously developed. The parameters of the groups relevant to geranic acid are estimated using experimental fluid phase-equilibrium data such as vapour pressure and saturated-liquid density of simple pure components (n-alkenes, branched alkenes and carboxylic acids) and the phase equilibrium data of mixtures (aqueous solutions of branched alkenes and of carboxylic acids). Geranate is represented by further incorporating the anionic carboxylate group, COO−, which is characterised using aqueous solution data of sodium carboxylate salts, assuming full dissociation of the salt in water. Choline is described by incorporating the cationic quaternary ammonium group, N+, using data for choline chloride solutions. The osmotic pressure of aqueous mixtures of CAGE at several concentrations is predicted and compared to experimental data obtained as part of our work to assess the accuracy of the modelling platform. The SAFT-γ Mie approach is shown to be predictive, providing a good description of the measured data for a wide range of mixtures and properties. Furthermore, the new group-interaction parameters needed to represent CAGE extend the set of functional groups of the group-contribution approach, and can be used in a transferable way to predict the properties of systems beyond those studied in the current work. The properties of aqueous solutions of the CAGE deep eutectic solvent are predicted with the SAFT-γ Mie approach.![]()
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Affiliation(s)
- Silvia Di Lecce
- Department of Chemical Engineering
- Centre for Process Systems Engineering
- Institute for Molecular Science and Engineering
- South Kensington Campus
- Imperial College London
| | - Georgia Lazarou
- Department of Chemical Engineering
- Centre for Process Systems Engineering
- Institute for Molecular Science and Engineering
- South Kensington Campus
- Imperial College London
| | - Siti H. Khalit
- Department of Chemical Engineering
- Centre for Process Systems Engineering
- Institute for Molecular Science and Engineering
- South Kensington Campus
- Imperial College London
| | - Claire S. Adjiman
- Department of Chemical Engineering
- Centre for Process Systems Engineering
- Institute for Molecular Science and Engineering
- South Kensington Campus
- Imperial College London
| | - George Jackson
- Department of Chemical Engineering
- Centre for Process Systems Engineering
- Institute for Molecular Science and Engineering
- South Kensington Campus
- Imperial College London
| | - Amparo Galindo
- Department of Chemical Engineering
- Centre for Process Systems Engineering
- Institute for Molecular Science and Engineering
- South Kensington Campus
- Imperial College London
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38
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Polishuk I, Garrido JM. Comparison of SAFT-VR-Mie and CP-PC-SAFT in predicting phase behavior of associating systems II. Ammonia – Hydrocarbons. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.08.098] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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39
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Garrido JM, Cea-Klapp E, Polishuk I. Some Observations Regarding the Association Kernel of SAFT-VR-Mie. Is the Molecularly Inspired Contribution Always Necessary? Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b03789] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- José Matías Garrido
- Departamento de Ingeniería Química, Universidad de Concepción, Concepción, Chile
| | - Esteban Cea-Klapp
- Departamento de Ingeniería Química, Universidad de Concepción, Concepción, Chile
| | - Ilya Polishuk
- Department of Chemical Engineering, Biotechnology and Materials, Ariel University, 40700, Ariel, Israel
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40
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Polishuk I, Garrido JM. Comparison of SAFT-VR-Mie and CP-PC-SAFT in predicting phase behavior of associating systems I. Ammonia–water, methanol, ethanol and hydrazine. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.05.112] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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41
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Marshall BD. A molecular equation of state for alcohols which includes steric hindrance in hydrogen bonding. J Chem Phys 2018; 149:044505. [PMID: 30068185 DOI: 10.1063/1.5041454] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
In this paper, we develop the first equation of state for alcohol containing mixtures which includes the effect of steric hindrance between the two electron lone pair hydrogen bond acceptor sites on the alcohol's hydroxyl oxygen. The theory is derived for multi-component mixtures within Wertheim's multi-density statistical mechanics in a second order perturbation theory. The accuracy of the new approach is demonstrated by application to pure methanol and ethanol and binary ethanol/water mixtures. It is demonstrated that the new approach gives a substantial improvement in the prediction of the hydrogen bonding structure of both pure alcohol and alcohol/water mixtures, as compared to conventional approaches which do not include steric effects between the alcohol association sites. Finally, it is demonstrated that the inclusion of steric effects allows for more accurate binary phase equilibria and heats of mixing prediction with water.
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Affiliation(s)
- Bennett D Marshall
- ExxonMobil Research and Engineering, 22777 Springwoods Village Parkway, Spring, Texas 77389, USA
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42
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Cripwell JT, Smith SAM, Schwarz CE, Burger AJ. SAFT-VR Mie: Application to Phase Equilibria of Alcohols in Mixtures with n-Alkanes and Water. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b01042] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jamie T. Cripwell
- Department of Process Engineering, Stellenbosch University, Private Bag X1, Matieland, 7602, South Africa
| | - Sonja A. M. Smith
- Department of Process Engineering, Stellenbosch University, Private Bag X1, Matieland, 7602, South Africa
| | - Cara E. Schwarz
- Department of Process Engineering, Stellenbosch University, Private Bag X1, Matieland, 7602, South Africa
| | - Andries J. Burger
- Department of Process Engineering, Stellenbosch University, Private Bag X1, Matieland, 7602, South Africa
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Franco LFM, Economou IG, Castier M. Statistical Mechanical Model for Adsorption Coupled with SAFT-VR Mie Equation of State. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:11291-11298. [PMID: 28910528 DOI: 10.1021/acs.langmuir.7b02686] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We extend the SAFT-VR Mie equation of state to calculate adsorption isotherms by considering explicitly the residual energy due to the confinement effect. Assuming a square-well potential for the fluid-solid interactions, the structure imposed by the fluid-solid interface is calculated using two different approaches: an empirical expression proposed by Travalloni et al. ( Chem. Eng. Sci. 65 , 3088 - 3099 , 2010 ), and a new theoretical expression derived by applying the mean value theorem. Adopting the SAFT-VR Mie ( Lafitte et al. J. Chem. Phys. , 139 , 154504 , 2013 ) equation of state to describe the fluid-fluid interactions, and solving the phase equilibrium criteria, we calculate adsorption isotherms for light hydrocarbons adsorbed in a carbon molecular sieve and for carbon dioxide, nitrogen, and water adsorbed in a zeolite. Good results are obtained from the model using either approach. Nonetheless, the theoretical expression seems to correlate better the experimental data than the empirical one, possibly implying that a more reliable way to describe the structure ensures a better description of the thermodynamic behavior.
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Affiliation(s)
- Luís F M Franco
- School of Chemical Engineering, University of Campinas , Av. Albert Einstein, 500, CEP: 13083-852, Campinas, Brazil
- Chemical Engineering Program, Texas A&M University at Qatar , P.O. Box 23874, Doha, Qatar
| | - Ioannis G Economou
- Chemical Engineering Program, Texas A&M University at Qatar , P.O. Box 23874, Doha, Qatar
| | - Marcelo Castier
- Chemical Engineering Program, Texas A&M University at Qatar , P.O. Box 23874, Doha, Qatar
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13 The Role of Molecular Thermodynamics in Developing Industrial Processes and Novel Products That Meet the Needs for a Sustainable Future. ACTA ACUST UNITED AC 2017. [DOI: 10.1201/9781315153209-14] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Hutacharoen P, Dufal S, Papaioannou V, Shanker RM, Adjiman CS, Jackson G, Galindo A. Predicting the Solvation of Organic Compounds in Aqueous Environments: From Alkanes and Alcohols to Pharmaceuticals. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b00899] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Panatpong Hutacharoen
- Department
of Chemical Engineering, Centre for Process System Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Simon Dufal
- Department
of Chemical Engineering, Centre for Process System Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Vasileios Papaioannou
- Department
of Chemical Engineering, Centre for Process System Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Ravi M. Shanker
- Pfizer
Research and Development, Groton Laboratories, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Claire S. Adjiman
- Department
of Chemical Engineering, Centre for Process System Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - George Jackson
- Department
of Chemical Engineering, Centre for Process System Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Amparo Galindo
- Department
of Chemical Engineering, Centre for Process System Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
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Trusler JM. Thermophysical Properties and Phase Behavior of Fluids for Application in Carbon Capture and Storage Processes. Annu Rev Chem Biomol Eng 2017; 8:381-402. [DOI: 10.1146/annurev-chembioeng-060816-101426] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- J.P. Martin Trusler
- Department of Chemical Engineering, Imperial College London, London SW7 2AZ, United Kingdom
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