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Eder S, Guggenberger P, Priamushko T, Kleitz F, Thommes M. Aspects of Gas Storage: Confined Geometry Effects on the High-Pressure Adsorption Behavior of Supercritical Fluids. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:2079-2090. [PMID: 38227957 DOI: 10.1021/acs.langmuir.3c02841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
During the last decades, major progress was made concerning the understanding of subcritical low-pressure adsorption of fluids like nitrogen and argon at their boiling temperatures in nanoporous materials. It was possible to understand how structural properties affect the shape of the adsorption isotherms. However, within the context of gas storage applications, supercritical high-pressure gas adsorption is important. A key feature here is that the experimentally determined surface excess adsorption isotherm may exhibit a characteristic maximum at a certain pressure. For a given temperature and adsorptive/adsorbent system, the surface excess maximum (and the corresponding adsorbed amount) is related to the storage capacity of the adsorbent. However, there is still a lack of understanding of how key textural properties such as surface area and pore size affect details of the shape of supercritical high-pressure adsorption isotherms. To address these open questions, we have performed a systematic experimental study assessing the effect of pore size/structure on the supercritical adsorption isotherms of pure fluids such as C2H4, CO2, and SF6 over a wider range of temperatures and pressures on a series of model materials exhibiting well-defined pore sizes, i.e., ordered micro- and mesoporous materials (e.g., NaY zeolite, KIT-6 silica, and MCM-48 silica). A fundamental result of our experiments is a unique fluid-independent correlation between the pressure of the surface excess maximum pmax (at a given temperature) and the pore size (by taking into account the kinetic diameter of the fluid and the underlying effective attractive fluid-wall interaction). Summarizing, our results suggest important structure-property relationships, allowing one to determine, for given thermodynamic conditions, important information related to the optimal operating conditions for supercritical adsorption applications. The insights may also serve as a basis for optimizing and tailoring the properties of nanoporous adsorbent materials for gas storage applications.
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Affiliation(s)
- Simon Eder
- Institute of Separation Science and Technology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstr. 3, Erlangen 91058, Germany
| | - Patrick Guggenberger
- Department of Functional Materials and Catalysis, Faculty of Chemistry, University of Vienna, Währinger Str. 42, Vienna 1090, Austria
- Vienna Doctoral School in Chemistry (DoSChem), University of Vienna, Währinger Str. 42, Vienna 1090, Austria
| | - Tatiana Priamushko
- Department of Functional Materials and Catalysis, Faculty of Chemistry, University of Vienna, Währinger Str. 42, Vienna 1090, Austria
- Helmholtz Institute Erlangen-Nürnberg for Renewable Energy, Forschungszentrum Jülich GmbH, Cauerstraße 1, 91058 Erlangen, Germany
| | - Freddy Kleitz
- Department of Functional Materials and Catalysis, Faculty of Chemistry, University of Vienna, Währinger Str. 42, Vienna 1090, Austria
| | - Matthias Thommes
- Institute of Separation Science and Technology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstr. 3, Erlangen 91058, Germany
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Almolliyeh M, Tripathy S, Sadasivam S, Masum S, Thomas HR. Effect of Physical Nature (Intact and Powder) of Coal on CO 2 Adsorption at the Subcritical Pressure Range (up to 6.4 MPa at 298.15 K). ACS OMEGA 2023; 8:7070-7084. [PMID: 36844552 PMCID: PMC9948193 DOI: 10.1021/acsomega.2c07940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 02/01/2023] [Indexed: 06/18/2023]
Abstract
This study examines the influence of subcritical pressure and the physical nature (intact and powder) of coal samples on CO2 adsorption capacity and kinetics in the context of CO2 sequestration in shallow level coal seams. Manometric adsorption experiments were carried out on two anthracite and one bituminous coal samples. Isothermal adsorption experiments were carried out at 298.15 K in two pressure ranges: less than 6.1 MPa and up to 6.4 MPa relevant to gas/liquid adsorption. The adsorption isotherms of intact anthracite and bituminous samples were compared to that of the powdered samples. The powdered samples of the anthracitic samples had a higher adsorption than that of intact samples due to the exposed adsorption sites. The intact and powdered samples of bituminous coal, on the other hand, exhibited comparable adsorption capacities. The comparable adsorption capacity is attributed to the intact samples' channel-like pores and microfractures, where high density CO2 adsorption occurs. The adsorption-desorption hysteresis patterns and the residual amount of CO2 trapped in the pores reinforce the influence of the physical nature of the sample and pressure range on the CO2 adsorption-desorption behavior. The intact 18 ft AB samples showed significantly different adsorption isotherm pattern to that of powdered samples for experiments conducted up to 6.4 MPa equilibrium pressure due to the high-density CO2 adsorbed phase in the intact samples. The adsorption experimental data fit into the theoretical models showed that the BET model fit better than the Langmuir model. The experimental data fit into the pseudo first order, second order, and Bangham pore diffusion kinetic models showed that the rate-determining steps are bulk pore diffusion and surface interaction. Generally, the results obtained from the study demonstrated the significance of conducting experiments with large, intact core samples pertinent to CO2 sequestration in shallow coal seams.
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Gupta S, Elliott JR, Anderko A, Crosthwaite J, Chapman WG, Lira CT. Current Practices and Continuing Needs in Thermophysical Properties for the Chemical Industry. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c03153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Affiliation(s)
- Sumnesh Gupta
- The Dow Chemical Company, 1254 Enclave Parkway, Houston, Texas 77077, United States
| | - J. Richard Elliott
- Chemical, Biomolecular, and Corrosion Engineering Department, University of Akron, Akron, Ohio 44325-3906, United States
| | - Andrzej Anderko
- OLI Systems, Inc., 2 Gatehall Drive, Suite 1D, Parsippany, New Jersey 07054, United States
| | - Jacob Crosthwaite
- The Dow Chemical Company, 1897 Building, Midland, Michigan 48667, United States
| | - Walter G. Chapman
- Chemical and Biomolecular Engineering Department, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Carl T. Lira
- Chemical Engineering & Materials Science, Michigan State University, East Lansing, Michigan 48824-2288, United States
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Masum SA, Sadasivam S, Chen M, Thomas HR. Low Subcritical CO 2 Adsorption-Desorption Behavior of Intact Bituminous Coal Cores Extracted from a Shallow Coal Seam. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:1548-1561. [PMID: 36669166 PMCID: PMC9893810 DOI: 10.1021/acs.langmuir.2c02971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 01/03/2023] [Indexed: 06/17/2023]
Abstract
This study focuses on improving fundamental understanding of low, subcritical CO2 adsorption-desorption behavior of bituminous coals with the aim to evaluate the utility of shallow-depth coal seams for safe and effective CO2 storage. Comprehensive data and a detailed description of coal-CO2 interactions, e.g., adsorption, desorption, and hysteresis behavior of intact bituminous coals at CO2 pressures <0.5 MPa, are limited. Manometric sorption experiments were performed on coal cores (50 mm dia. and 30- or 60-mm length) obtained from a 30 m deep coal seam located at the Upper Silesian Basin in Poland. Experimental results revealed that the adsorption capacities were correlated to void volume and equilibrium time under low-pressure injection (0.5 MPa). The positive deviation, observed in the hysteresis of adsorption-desorption isotherm patterns, and the increased sample mass at the end of the tests suggested CO2 pore diffusion and condensation. This behavior is vital for assessing low-pressure CO2 injection and storage capabilities of shallow coal seams where confining pressure is much lower than that of the deeper seams. Overall, CO2 adsorption depicts a type II adsorption isotherm and a type H3 hysteresis pattern of the IUPAC classification. Experimental results fitted better to the Brunauer-Emmett-Teller model than the Langmuir isotherm model. CO2 adsorption behavior of intact cores was also evaluated by characteristic curves. It was found that Curve I favored physical forces, i.e., the presence of van der Waals/London dispersion forces to describe the coal-CO2 interactions. However, analysis of Curve II indicated that the changing pressure-volume behavior of CO2 in the adsorbed phase, under low equilibrium pressures, cannot be ignored.
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5
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Zhang J, Li D, Weng Y, Sun Q, Duval SA, Al Othman RM, Lithoxoos GP, Zhang Y. Performance Assessment of Molecular Sieves for Sulfur Recovery Unit Tail Gas Treating. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c02712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Jiali Zhang
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan454000, PR China
- Henan Key Laboratory of Coal Green Conversion, Henan Polytechnic University, Jiaozuo, Henan454000, PR China
| | - Dapeng Li
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan454000, PR China
| | - Yujing Weng
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan454000, PR China
- Henan Key Laboratory of Coal Green Conversion, Henan Polytechnic University, Jiaozuo, Henan454000, PR China
| | - Qi Sun
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan454000, PR China
- Henan Key Laboratory of Coal Green Conversion, Henan Polytechnic University, Jiaozuo, Henan454000, PR China
| | - Sebastien A. Duval
- Research & Development Center, Saudi Arabia Oil Company, Dhahran31311, Saudi Arabia
| | - Rashid M. Al Othman
- Research & Development Center, Saudi Arabia Oil Company, Dhahran31311, Saudi Arabia
| | - George P. Lithoxoos
- Research & Development Center, Saudi Arabia Oil Company, Dhahran31311, Saudi Arabia
| | - Yulong Zhang
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, Henan454000, PR China
- Henan Key Laboratory of Coal Green Conversion, Henan Polytechnic University, Jiaozuo, Henan454000, PR China
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Zotkin MA, Alentiev DA, Shorunov SV, Sokolov SE, Gavrilova NN, Bermeshev MV. Micropocrous polynorbornenes bearing carbocyclic substituents: Structure-property study. POLYMER 2023. [DOI: 10.1016/j.polymer.2023.125732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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7
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von Wedelstedt A, Bockel L, Flehmig N, Klauck M, Kalies G. How Important Is the Internal Hydrophobicity of Metal-Organic Frameworks for the Separation of Water/Alcohol Mixtures? LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:15672-15682. [PMID: 36475756 DOI: 10.1021/acs.langmuir.2c02475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Short-chain alcohols obtained by fermentation will play a key role in the industrial transformation toward green chemistry because of their use as fuel additives and fuels or for their conversion into olefins. The fermentation broth is often a highly diluted aqueous solution that requires separation, for instance, by liquid phase adsorption in nanoporous materials. However, entropy effects that prefer the adsorption of water might significantly reduce the separation efficiency─even in nanoporous materials with internal hydrophobicity. In this paper, we investigate this assumption by a case study on the separation of aqueous alcohol mixtures by liquid phase adsorption in CAU-10─an ultramicroporous metal-organic framework with internal hydrophobicity─using adsorption experiments and grand canonical Monte Carlo simulations to predict both the unary gas adsorption isotherms of ethanol, n-butanol, or water as well as the multicomponent liquid phase adsorption isotherms of their mixtures. It was observed that separation from the liquid phase is commonly driven by entropy effects and strong interactions between the guest molecules─both favoring the adsorption of water and thus complicating the separation of fermentation product by adsorption─while the internal hydrophobicity of CAU-10 is of comparatively little importance.
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Affiliation(s)
- Alexander von Wedelstedt
- Department of Chemical Engineering, HTW University of Applied Sciences Dresden, 01069Dresden, Germany
| | - Lukas Bockel
- Department of Chemical Engineering, HTW University of Applied Sciences Dresden, 01069Dresden, Germany
| | - Nora Flehmig
- Department of Chemical Engineering, HTW University of Applied Sciences Dresden, 01069Dresden, Germany
| | - Mandy Klauck
- Department of Chemical Engineering, HTW University of Applied Sciences Dresden, 01069Dresden, Germany
| | - Grit Kalies
- Department of Chemical Engineering, HTW University of Applied Sciences Dresden, 01069Dresden, Germany
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Sokolov SE, Volkov VV. High Pressures Gas Adsorption in Porous Media and Polymeric Membrane Materials. MEMBRANES AND MEMBRANE TECHNOLOGIES 2022. [DOI: 10.1134/s2517751622070022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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9
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Kalmykov D, Balynin A, Yushkin A, Grushevenko E, Sokolov S, Malakhov A, Volkov A, Bazhenov S. Membranes Based on PTMSP/PVTMS Blends for Membrane Contactor Applications. MEMBRANES 2022; 12:1160. [PMID: 36422152 PMCID: PMC9698258 DOI: 10.3390/membranes12111160] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/09/2022] [Accepted: 11/14/2022] [Indexed: 06/16/2023]
Abstract
In this work, perspective polymeric materials were developed for membrane contactor applications, e.g., for the dissolved oxygen removal from amine CO2 capture solvents. Several polymeric blends based on poly[1-trimethylsilyl-1-propyne] (PTMSP) and poly[vinyltrimethylsilane] (PVTMS) were studied. The gas and water vapor sorption and permeability coefficients for the PTMSP/PVTMS blend membranes at different PVTMS contents (0-100%) were obtained under temperatures of 30 and 60 °C for the first time. As the PVTMS content increases, the O2 and CO2 permeabilities decrease by 160 and 195 times at 30 °C, respectively. The fractional accessible volume of the polymer blends decreases accordingly. The transport of the CO2 capture solvent vapors through the PTMSP/PVTMS blend membranes were determined in thermo-pervaporation (TPV) mode using aqueous monoethanolamine (30%), N-methyldiethanolamine (40%), and 2-amino-2-methyl-1-propanol (30%) solutions as model amine solvents at 60 °C. The membranes demonstrated high pervaporation separation factors with respect to water, resulting in low amine losses. A joint analysis of the gas permeabilities and aqueous alkanolamine TPV data allowed us to conclude that the polymer blend composition of PTMSP/PVTMS 70/30 provides an optimal combination of a sufficiently high oxygen permeability and the pervaporation separation factor at a temperature of 60 °C.
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Affiliation(s)
- Denis Kalmykov
- Correspondence: (D.K.); (A.V.); Tel.: +7-495-647-59-27 (ext. 2-02) (D.K.); +7-495-955-48-93 (A.V.)
| | | | | | | | | | | | - Alexey Volkov
- Correspondence: (D.K.); (A.V.); Tel.: +7-495-647-59-27 (ext. 2-02) (D.K.); +7-495-955-48-93 (A.V.)
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10
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Dmitrieva E, Grushevenko E, Razlataya D, Golubev G, Rokhmanka T, Anokhina T, Bazhenov S. Alginate Ag for Composite Hollow Fiber Membrane: Formation and Ethylene/Ethane Gas Mixture Separation. MEMBRANES 2022; 12:1090. [PMID: 36363645 PMCID: PMC9696779 DOI: 10.3390/membranes12111090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/18/2022] [Accepted: 10/26/2022] [Indexed: 06/16/2023]
Abstract
Membranes based on natural polymers, in particular alginate, are of great interest for various separation tasks. In particular, the possibility of introducing silver ions during the crosslinking of sodium alginate makes it possible to obtain a membrane with an active olefin transporter. In this work, the creation of a hollow fiber composite membrane with a selective layer of silver alginate is proposed for the first time. The approach to obtaining silver alginate is presented in detail, and its sorption and transport properties are also studied. It is worth noting the increased selectivity of the material for the ethylene/ethane mixture (more than 100). A technique for obtaining a hollow fiber membrane from silver alginate has been developed, and its separating characteristics have been determined. It is shown that in thin layers, silver alginate retains high values of selectivity for the ethylene/ethane gas pair. The obtained gas transport properties demonstrate the high potential of using membranes based on silver alginate for the separation of an olefin/paraffin mixture.
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11
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Brandani S. The Rigid Adsorbent Lattice Fluid Model: Thermodynamic Consistency and Relationship to the Real Adsorbed Solution Theory. MEMBRANES 2022; 12:1009. [PMID: 36295768 PMCID: PMC9607970 DOI: 10.3390/membranes12101009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/13/2022] [Accepted: 10/14/2022] [Indexed: 06/16/2023]
Abstract
The Rigid Adsorbent Lattice Fluid model has been shown to comply with all the requirements for thermodynamic consistency in the case of an adsorbent that does not undergo structural changes. This is achieved by introducing a correction to the reduced density function that multiplies the combinatorial term. A procedure to calculate the predicted adsorbed mixture activity coefficients has been presented that allows the production of excess Gibbs energy plots at a constant reduced grand potential. The predicted nonideality is structurally consistent with the Non-Ideal Adsorbed Solution Theory of Myers in terms of both its dependence on concentration and reduced grand potential. The ability to generate excess Gibbs energy values allows linking the new Rigid Adsorbent Lattice Fluid model to the traditional Real Adsorbed Solution Theory providing an alternative approach to predicting multicomponent adsorption based solely on pure component data.
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Affiliation(s)
- Stefano Brandani
- School of Engineering, University of Edinburgh, The King's Buildings, Mayfield Road, Edinburgh EH9 3FB, UK
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12
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Preparation and chatacterization of sodium polyacrylate grafted montmorillonite nanocomposite for the adsorption of cadmium ions form aqueous solution. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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Otter D, Dieler M, Dänekas V, Krätz L, Holdt H, Bart H. Modelling adsorption based on an isoreticular
MOF
‐series of
IFPs
–Part
I
: Collection of physical properties and single component equilibria. CAN J CHEM ENG 2022. [DOI: 10.1002/cjce.24286] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Dirk Otter
- Lehrstuhl für Thermische Verfahrenstechnik, Technische Universität Kaiserslautern Kaiserslautern Germany
| | - Max Dieler
- Lehrstuhl für Thermische Verfahrenstechnik, Technische Universität Kaiserslautern Kaiserslautern Germany
| | - Volker Dänekas
- Lehrstuhl für Thermische Verfahrenstechnik, Technische Universität Kaiserslautern Kaiserslautern Germany
| | - Lorenz Krätz
- Lehrstuhl für Thermische Verfahrenstechnik, Technische Universität Kaiserslautern Kaiserslautern Germany
| | - Hans‐Jürgen Holdt
- Institut für Chemie, Anorganische Chemie, Universität Potsdam Potsdam Germany
| | - Hans‐Jörg Bart
- Lehrstuhl für Thermische Verfahrenstechnik, Technische Universität Kaiserslautern Kaiserslautern Germany
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Mohd Aji AQ, Mohshim DF, Maulianda B, Elraeis KA. Supercritical methane adsorption measurement on shale using the isotherm modelling aspect. RSC Adv 2022; 12:20530-20543. [PMID: 35919182 PMCID: PMC9284539 DOI: 10.1039/d2ra03367d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 07/11/2022] [Indexed: 11/21/2022] Open
Abstract
In shale gas reservoirs, adsorbed gas accounts for 85% of the total shale gas in place (GIP). The adsorption isotherms of shale samples are significant for understanding the mechanisms of shale gas storage, primarily for assessing the GIP and developing an accurate gas flow behaviour. Isothermal adsorption experiments primarily determine the adsorption capacity of methane in shale gas reservoirs. However, experimental data is limited due to the heterogeneous properties of shale and extreme reservoir conditions at high pressures and temperatures. This work discusses the effect of total carbon (TOC), pore size distributions, and mineralogical properties on adsorption capacity. In this study, the gravimetric adsorption isotherm measurement method was applied to obtain the adsorption isotherms of methane on four shale core samples from Eagle Ford reservoirs. Four shale core samples with TOC of 9.67% to 14.4% were used. Adsorption experiments were conducted at a temperature of 120 °C and to a maximum pressure of 10 MPa. The data obtained experimentally were compared with adsorption isotherm models to assess each model's applicability in describing the shale adsorption behaviour. A comparison of these models was performed using fitting and error analysis. It was observed that the calculated absolute adsorption of supercritical methane is higher than the excess adsorption. The percentage of differences between the absolute and excess adsorption is more significant at a pressure higher than the critical methane pressure of 9.6%. Sample EF C has the highest adsorption capacity of 1.308 mg g-1, followed by EF D 1.194 mg g-1, EF B 0.546 mg g-1, and EF A 0.455 mg g-1. Three statistical error analyses, average relative error (ARE), the Pearson chi-square (χ 2) test and root mean square error (RMSE) deviation were used to assess the applicability of each model in describing the adsorption behaviour of shale samples. The order of adsorption isotherm fitting with experimental data is Toth > D-R = Freundlich > Langmuir. Error analysis shows that the Toth model has the lowest values compared to other models, 0.6% for EF B, 2.5% for EF C, and 2.2% for EF A and EF D, respectively.
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Affiliation(s)
- Aminah Qayyimah Mohd Aji
- Universiti Teknologi PETRONAS 32610 Seri Iskandar Perak Malaysia +60-13-7337671
- Universiti Teknologi Malaysia Skudai Johor Malaysia
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15
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Wilkins NS, Sawada JA, Rajendran A. Quantitative Microscale Dynamic Column Breakthrough Apparatus for Measurement of Unary and Binary Adsorption Equilibria on Milligram Quantities of Adsorbents. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nicholas Stiles Wilkins
- Department of Chemical and Materials Engineering, University of Alberta, Donadeo Innovation Centre of Engineering, 9211-116 Street NW, Edmonton, Alberta T6G 1H9, Canada
| | - James A. Sawada
- Department of Chemical and Materials Engineering, University of Alberta, Donadeo Innovation Centre of Engineering, 9211-116 Street NW, Edmonton, Alberta T6G 1H9, Canada
| | - Arvind Rajendran
- Department of Chemical and Materials Engineering, University of Alberta, Donadeo Innovation Centre of Engineering, 9211-116 Street NW, Edmonton, Alberta T6G 1H9, Canada
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16
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Grushevenko E, Balynin A, Ashimov R, Sokolov S, Legkov S, Bondarenko G, Borisov I, Sadeghi M, Bazhenov S, Volkov A. Hydrophobic Ag-Containing Polyoctylmethylsiloxane-Based Membranes for Ethylene/Ethane Separation in Gas-Liquid Membrane Contactor. Polymers (Basel) 2022; 14:polym14081625. [PMID: 35458375 PMCID: PMC9029088 DOI: 10.3390/polym14081625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/06/2022] [Accepted: 04/09/2022] [Indexed: 01/27/2023] Open
Abstract
The application of gas-liquid membrane contactors for ethane-ethylene separation seems to offer a good alternative to conventional energy-intensive processes. This work aims to develop new hydrophobic composite membranes with active ethylene carriers and to demonstrate their potential for ethylene/ethane separation in gas-liquid membrane contactors. For the first time, hybrid membrane materials based on polyoctylmethylsiloxane (POMS) and silver tetrafluoroborate, with a Si:Ag ratio of 10:0.11 and 10:2.2, have been obtained. This technique allowed us to obtain POMS-based membranes with silver nanoparticles (8 nm), which are dispersed in the polymer matrix. The dispersion of silver in the POMS matrix is confirmed by the data IR-spectroscopy, wide-angle X-ray diffraction, and X-ray fluorescence analyses. These membranes combine the hydrophobicity of POMS and the selectivity of silver ions toward ethylene. It was shown that ethylene sorption at 600 mbar rises from 0.89 cm3(STP)/g to 3.212 cm3(STP)/g with an increase of Ag content in POMS from 0 to 9 wt%. Moreover, the membrane acquires an increased sorption affinity for ethylene. The ethylene/ethane sorption selectivity of POMS is 0.64; for the membrane with 9 wt% silver nanoparticles, the ethylene/ethane sorption selectivity was 2.46. Based on the hybrid material, POMS-Ag, composite membranes were developed on a polyvinylidene fluoride (PVDF) porous support, with a selective layer thickness of 5–10 µm. The transport properties of the membranes were studied by separating a binary mixture of ethylene/ethane at 20/80% vol. It has been shown that the addition of silver nanoparticles to the POMS matrix leads to a decrease in the ethylene permeability, but ethylene/ethane selectivity increases from 0.9 (POMS) to 1.3 (9 wt% Ag). It was noted that when the POMS-Ag membrane is exposed to the gas mixture flow for 3 h, the selectivity increases to 1.3 (0.5 wt% Ag) and 2.3 (9 wt% Ag) due to an increase in ethylene permeability. Testing of the obtained membranes in a gas-liquid contactor showed that the introduction of silver into the POMS matrix makes it possible to intensify the process of ethylene mass transfer by more than 1.5 times.
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Affiliation(s)
- Evgenia Grushevenko
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 119991 Moscow, Russia; (A.B.); (R.A.); (S.S.); (S.L.); (G.B.); (I.B.); (S.B.); (A.V.)
- Correspondence: ; Tel.: +7-495-647-59-27 (ext. 202)
| | - Alexey Balynin
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 119991 Moscow, Russia; (A.B.); (R.A.); (S.S.); (S.L.); (G.B.); (I.B.); (S.B.); (A.V.)
| | - Ruslan Ashimov
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 119991 Moscow, Russia; (A.B.); (R.A.); (S.S.); (S.L.); (G.B.); (I.B.); (S.B.); (A.V.)
- Department of Gas Chemistry, Faculty of Chemical Technology and Ecology, National University of Oil and Gas “Gubkin University”, 119991 Moscow, Russia
| | - Stepan Sokolov
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 119991 Moscow, Russia; (A.B.); (R.A.); (S.S.); (S.L.); (G.B.); (I.B.); (S.B.); (A.V.)
| | - Sergey Legkov
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 119991 Moscow, Russia; (A.B.); (R.A.); (S.S.); (S.L.); (G.B.); (I.B.); (S.B.); (A.V.)
| | - Galina Bondarenko
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 119991 Moscow, Russia; (A.B.); (R.A.); (S.S.); (S.L.); (G.B.); (I.B.); (S.B.); (A.V.)
| | - Ilya Borisov
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 119991 Moscow, Russia; (A.B.); (R.A.); (S.S.); (S.L.); (G.B.); (I.B.); (S.B.); (A.V.)
| | - Morteza Sadeghi
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 8415683111, Iran;
| | - Stepan Bazhenov
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 119991 Moscow, Russia; (A.B.); (R.A.); (S.S.); (S.L.); (G.B.); (I.B.); (S.B.); (A.V.)
| | - Alexey Volkov
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 119991 Moscow, Russia; (A.B.); (R.A.); (S.S.); (S.L.); (G.B.); (I.B.); (S.B.); (A.V.)
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17
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Nguyen HGT, Toman B, Colon Martinez J, Siderius DW, van Zee RD. Reference surface excess isotherms for carbon dioxide adsorption on ammonium ZSM-5 at various temperatures. ADSORPTION 2022. [DOI: 10.1007/s10450-022-00355-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
AbstractThis work is part of the effort at the Facility for Adsorbent Characterization and Testing (FACT lab) at the National Institute of Standards and Technology (NIST) to develop reference materials, reference data, and measurement best practices for adsorption metrology. High-pressure surface excess isotherms for CO2 adsorption on NIST Reference Material 8852 (ammonium ZSM-5) at 15 °C, 25 °C, and 35 °C are reported, expanding on a FACT Lab-organized international interlaboratory study on this sorbent/sorbate pair at 20 °C. The range of temperatures of the present study is of interest for many CO2 adsorption measurements and applications. Measurements were made using five different adsorption instruments, both manometric and gravimetric. Excellent agreement in the measured isotherms among the instruments was found. An empirical reference equation of the form,$${n}_{ex,ref}({P}_{eq})=\frac{c}{\{{1+\mathrm{exp}[\left(-\mathrm{ln}\left(P\right)+a\right)/b ]\}}^{b }} ,$$
n
e
x
,
r
e
f
(
P
eq
)
=
c
{
1
+
exp
[
-
ln
P
+
a
/
b
]
}
b
,
[nex,ref is surface excess uptake (mmol/g); Peq is equilibrium pressure (MPa); P is (Peq)/(1 MPa)]; a, b, c are constants] and the 95% uncertainty interval were determined for the isotherms at each of the temperatures. Lastly, the isosteric heat of adsorption is estimated from absolute isotherms derived from the surface excess reference data.
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18
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Crone M, Türk M. Thermodynamics of adsorption of carbon dioxide on different metal oxides at temperatures from 313 to 353 K and pressures up to 25 MPa. J Supercrit Fluids 2022. [DOI: 10.1016/j.supflu.2021.105461] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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19
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Broom DP, Hirscher M. Improving Reproducibility in Hydrogen Storage Material Research. Chemphyschem 2021; 22:2141-2157. [PMID: 34382729 PMCID: PMC8596736 DOI: 10.1002/cphc.202100508] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/11/2021] [Indexed: 11/08/2022]
Abstract
Research into new reversible hydrogen storage materials has the potential to help accelerate the transition to a hydrogen economy. The discovery of an efficient and cost-effective method of safely storing hydrogen would revolutionise its use as a sustainable energy carrier. Accurately measuring storage capacities - particularly of novel nanomaterials - has however proved challenging, and progress is being hindered by ongoing problems with reproducibility. Various metal and complex hydrides are being investigated, together with nanoporous adsorbents such as carbons, metal-organic frameworks and microporous organic polymers. The hydrogen storage properties of these materials are commonly determined using either the manometric (or Sieverts) technique or gravimetric methods, but both approaches are prone to significant error, if not performed with great care. Although commercial manometric and gravimetric instruments are widely available, they must be operated with an awareness of the limits of their applicability and the error sources inherent to the measurement techniques. This article therefore describes the measurement of hydrogen sorption and covers the required experimental procedures, aspects of troubleshooting and recommended reporting guidelines, with a view of helping improve reproducibility in experimental hydrogen storage material research.
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Affiliation(s)
| | - Michael Hirscher
- Max Planck Institute for Intelligent SystemsHeisenbergstrasse 370569StuttgartGermany
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20
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Hernández-Monje D, Giraldo L, Moreno-Piraján JC. Enthalpic and Liquid-Phase Adsorption Study of Toluene-Cyclohexane and Toluene-Hexane Binary Systems on Modified Activated Carbons. Molecules 2021; 26:molecules26102839. [PMID: 34064753 PMCID: PMC8151323 DOI: 10.3390/molecules26102839] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/01/2021] [Accepted: 05/04/2021] [Indexed: 12/03/2022] Open
Abstract
The liquid-phase adsorption of toluene in cyclohexane and hexane solutions on modified activated carbons was evaluated; the energy involved in the interaction between these solutions and the solids was determined by immersion enthalpies of pure solvents and their mixtures, and the contribution of the system constituents was calculated by differential enthalpies. The thermal treatment generated modifications that favored adsorption and interaction with the evaluated solutions, since it increased the textural parameters and the basic character of the samples. Cyclohexane could create greater competition with the adsorption sites compared to hexane, but it favored the increase in adsorption capacities (0.416 to 1.026 mmol g−1) and the interactions with the solid evaluated through the immersion enthalpies. The immersion enthalpies of pure solvents (−16.36 to −112.7 J g−1) and mixtures (−25.65 to −104.34 J g−1) had exothermic behaviors that were decreasing due to the possible displacement of solvent molecules when increasing the solute concentration in the mixtures. The differential enthalpies for toluene were negative (−18.63 to −2.14 J), mainly due to the π–π interaction with the solid, while those of the solvent–solid component tended to be positive values (−4.25 to 55.97 J) due to the displacement of the solvent molecules by those of toluene.
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Affiliation(s)
- Diana Hernández-Monje
- Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia, Sede Bogotá, Carrera 30 No 45-03, Bogotá 11001, Colombia; (D.H.-M.); (L.G.)
| | - Liliana Giraldo
- Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia, Sede Bogotá, Carrera 30 No 45-03, Bogotá 11001, Colombia; (D.H.-M.); (L.G.)
| | - Juan Carlos Moreno-Piraján
- Departamento de Química, Facultad de Ciencias, Universidad de los Andes, Carrera 1 este No 18A-10, Bogotá 111711, Colombia
- Correspondence: ; Tel.: +571-339-4949 (ext. 3465-3478-4753)
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21
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Measurement and interpretation of unary supercritical gas adsorption isotherms in micro-mesoporous solids. ADSORPTION 2021. [DOI: 10.1007/s10450-021-00313-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
AbstractGas adsorption at high pressures in porous solids is commonly quantified in terms of the excess amount adsorbed. Despite the wide spectrum of adsorbent morphologies available, the analysis of excess adsorption isotherms has mostly focused on microporous materials and the role of mesoporosity remains largely unexplored. Here, we present supercritical CO2 adsorption isotherms measured at $$T=308$$
T
=
308
K in the pressure range $$p=0.02{-}21$$
p
=
0.02
-
21
MPa on three adsorbents with distinct fractions of microporosity, $$\phi_2$$
ϕ
2
, namely a microporous metal-organic framework ($$\phi_2=70$$
ϕ
2
=
70
%), a micro-mesoporous zeolite ($$\phi_2=38$$
ϕ
2
=
38
%) and a mesoporous carbon ($$\phi_2<0.1$$
ϕ
2
<
0.1
%). The results are compared systematically in terms of excess and net adsorption relative to two distinct reference states–the space filled with gas in the presence/absence of adsorbent–that are defined from two separate experiments using helium as the probing gas. We discuss the inherent difficulties in extracting from the supercritical adsorption isotherms quantitative information on the properties of the adsorbed phase (its density or volume), because of the nonuniform distribution of the latter within and across the different classes of pore sizes. Yet, the data clearly reveal pore-size dependent adsorption behaviour, which can be used to identify characteristic types of isotherm and to complement the information obtained using the more traditional textural analysis by physisorption.
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22
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Naheed L, Lamb KE, Gray EM, Webb CJ. Extracting adsorbate information from manometric uptake measurements of hydrogen at high pressure and ambient temperature. ADSORPTION 2021. [DOI: 10.1007/s10450-020-00289-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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23
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Uddin K, Pal A, Saha BB. Improved CO2 adsorption onto chemically activated spherical phenol resin. J CO2 UTIL 2020. [DOI: 10.1016/j.jcou.2020.101255] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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24
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Hernández-Monje D, Gutiérrez LG, Moreno-Piraján JC. Immersion enthalpy of activated carbons with different oxygen content in toluene-hexane mixtures. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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25
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Rzepa C, Siderius DW, Hatch HW, Shen VK, Rangarajan S, Mittal J. Computational Investigation of Correlations in Adsorbate Entropy for Pure-Silica Zeolite Adsorbents. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2020; 124:10.1021/acs.jpcc.0c02671. [PMID: 33643514 PMCID: PMC7905991 DOI: 10.1021/acs.jpcc.0c02671] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Vast numbers of unstudied hypothetical porous frameworks continue to spark interest in optimizing adsorption and catalytic processes. Evaluating the use of such materials depends on the accessibility of thermodynamic metrics such as the free energy, which, in turn, depend on the satisfactory estimation or calculation of the adsorption entropy, which often remains elusive. Previous works using simulations and experimental data have demonstrated relationships between the entropy and system descriptors, allowing for sensible predictions based on more-easily obtained physical parameters. However, the resultant conclusions were either based on experimental data for industrially relevant alkanes or lacked a significant sample size. In this paper, we evaluate correlations between gas-phase and adsorbed-phase entropies for a larger and more chemically diverse set of adsorbate molecules by using force fields and statistical mechanical expressions to calculate those entropies. In total, we perform calculations for 37 molecules across 10 chemical categories available in the TraPPE force field set, as adsorbed in five siliceous zeolites. Our results show that linear correlations between the gas- and adsorbed-phase entropies persist for the larger and diverse set of adsorbate molecules studied here, proving a broader applicability and justifying the use of simple correlations for many adsorbates and, presumably, adsorbent materials.
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Affiliation(s)
- Christopher Rzepa
- Department of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, PA 18015, USA
| | - Daniel W. Siderius
- Chemical Sciences Division, National Institute of Standards and Technology, Gaithersburg, MD 20899-8320, USA
| | - Harold W. Hatch
- Chemical Sciences Division, National Institute of Standards and Technology, Gaithersburg, MD 20899-8320, USA
| | - Vincent K. Shen
- Chemical Sciences Division, National Institute of Standards and Technology, Gaithersburg, MD 20899-8320, USA
| | - Srinivas Rangarajan
- Department of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, PA 18015, USA
| | - Jeetain Mittal
- Department of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, PA 18015, USA
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26
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Jacobs JH, Wynnyk KG, Lalani R, Sui R, Wu J, Montes V, Hill JM, Marriott RA. Removal of Sulfur Compounds from Industrial Emission Using Activated Carbon Derived from Petroleum Coke. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b04443] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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27
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Measurements of helium adsorption on natural clinoptilolite at temperatures from (123.15 to 423.15) K and pressures up to 35 MPa. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.04.049] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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28
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Hurst KE, Gennett T, Adams J, Allendorf MD, Balderas‐Xicohténcatl R, Bielewski M, Edwards B, Espinal L, Fultz B, Hirscher M, Hudson MSL, Hulvey Z, Latroche M, Liu D, Kapelewski M, Napolitano E, Perry ZT, Purewal J, Stavila V, Veenstra M, White JL, Yuan Y, Zhou H, Zlotea C, Parilla P. An International Laboratory Comparison Study of Volumetric and Gravimetric Hydrogen Adsorption Measurements. Chemphyschem 2019; 20:1997-2009. [DOI: 10.1002/cphc.201900166] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 06/02/2019] [Indexed: 12/24/2022]
Affiliation(s)
| | - Thomas Gennett
- National Renewable Energy Laboratory Golden CO 80401
- Colorado School of Mines Golden CO 80401
| | - Jesse Adams
- US Department of Energy Fuel Cells and Technology Office Golden CO 80401 USA
| | | | | | - Marek Bielewski
- European Commission of Joint Research Centre Petten Netherlands
| | - Bryce Edwards
- California Institute of Technology Pasadena CA 91125 USA
| | - L. Espinal
- National Institute of Standards and Technology Gaithersburg MD 20899 USA
| | - Brent Fultz
- California Institute of Technology Pasadena CA 91125 USA
| | - Michael Hirscher
- Max Planck Institute for Intellegent Systems 70569 Stuttgart Germany
| | | | - Zeric Hulvey
- Fuel Cell Technology Office U.S. Department of Energy Washington D.C. 20585 USA
| | | | - Di‐Jia Liu
- Argonne National Laboratory Lemont IL 60439 USA
| | | | | | | | | | | | | | | | - Yuping Yuan
- Argonne National Laboratory Lemont IL 60439 USA
| | | | | | | |
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29
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Pullumbi P, Brandani F, Brandani S. Gas separation by adsorption: technological drivers and opportunities for improvement. Curr Opin Chem Eng 2019. [DOI: 10.1016/j.coche.2019.04.008] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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30
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Kloutse FA, Hourri A, Natarajan S, Benard P, Chahine R. Systematic study of the excess and the absolute adsorption of N2/H2 and CO2/H2 mixtures on Cu-BTC. ADSORPTION 2019. [DOI: 10.1007/s10450-019-00124-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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31
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Ambiguity in actual amount adsorbed. ADSORPTION 2019. [DOI: 10.1007/s10450-019-00039-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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32
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Analytical model and experimental investigation of the adsorption thermodynamics of coalbed methane. ADSORPTION 2019. [DOI: 10.1007/s10450-019-00028-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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33
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Affiliation(s)
- Stefano Brandani
- School of Engineering; University of Edinburgh, The King's Buildings; Mayfield Road, Edinburgh, EH9 3FB U.K
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34
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Sturluson A, Huynh MT, Kaija AR, Laird C, Yoon S, Hou F, Feng Z, Wilmer CE, Colón YJ, Chung YG, Siderius DW, Simon CM. The role of molecular modelling and simulation in the discovery and deployment of metal-organic frameworks for gas storage and separation. MOLECULAR SIMULATION 2019; 45:10.1080/08927022.2019.1648809. [PMID: 31579352 PMCID: PMC6774364 DOI: 10.1080/08927022.2019.1648809] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 07/15/2019] [Indexed: 01/10/2023]
Abstract
Metal-organic frameworks (MOFs) are highly tuneable, extended-network, crystalline, nanoporous materials with applications in gas storage, separations, and sensing. We review how molecular models and simulations of gas adsorption in MOFs have informed the discovery of performant MOFs for methane, hydrogen, and oxygen storage, xenon, carbon dioxide, and chemical warfare agent capture, and xylene enrichment. Particularly, we highlight how large, open databases of MOF crystal structures, post-processed to enable molecular simulations, are a platform for computational materials discovery. We discuss how to orient research efforts to routinise the computational discovery of MOFs for adsorption-based engineering applications.
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Affiliation(s)
- Arni Sturluson
- School of Chemical, Biological, and Environmental Engineering, Oregon State University. Corvallis, OR, USA
| | - Melanie T. Huynh
- School of Chemical, Biological, and Environmental Engineering, Oregon State University. Corvallis, OR, USA
| | - Alec R. Kaija
- Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, PA, USA
| | - Caleb Laird
- School of Chemical, Biological, and Environmental Engineering, Oregon State University. Corvallis, OR, USA
| | - Sunghyun Yoon
- School of Chemical and Biomolecular Engineering, Pusan National University, Busan, Korea (South)
| | - Feier Hou
- Western Oregon University. Department of Chemistry, Monmouth, OR, USA
| | - Zhenxing Feng
- School of Chemical, Biological, and Environmental Engineering, Oregon State University. Corvallis, OR, USA
| | - Christopher E. Wilmer
- Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, PA, USA
| | - Yamil J. Colón
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN, USA
| | - Yongchul G. Chung
- School of Chemical and Biomolecular Engineering, Pusan National University, Busan, Korea (South)
| | - Daniel W. Siderius
- Chemical Sciences Division, National Institute of Standards and Technology. Gaithersburg, MD, USA
| | - Cory M. Simon
- School of Chemical, Biological, and Environmental Engineering, Oregon State University. Corvallis, OR, USA
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35
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Binary and ternary adsorption equilibria for CO2/CH4/N2 mixtures on Zeolite 13X beads from 273 to 333 K and pressures to 900 kPa. ADSORPTION 2018. [DOI: 10.1007/s10450-018-9952-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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36
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On the use of the IAST method for gas separation studies in porous materials with gate-opening behavior. ADSORPTION 2018. [DOI: 10.1007/s10450-018-9942-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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37
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Zhang Y, Zhang S, Wang Z, Deng H, Qi M, Peng X, Liu Y. Determination of the absolute CH 4 adsorption using simplified local density theory and comparison with the modified Langmuir adsorption model. RSC Adv 2018; 8:41509-41516. [PMID: 35559325 PMCID: PMC9091947 DOI: 10.1039/c8ra08586b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 11/27/2018] [Indexed: 12/03/2022] Open
Abstract
Accurately determining the adsorbed amount of CH4 on shale is significant for understanding the mechanisms of shale gas storage and shale methane recovery from shale gas reservoirs. Excess CH4 adsorption is measured using the thermogravimetric method. Simplified local density (SLD) theory is applied to calculate the adsorbed CH4 density to obtain the absolute adsorption. Moreover, the modified Langmuir adsorption model is employed to fit the excess adsorption to describe the absolute adsorption. The adsorbed CH4 density from the SLD model is affected by the system pressure and temperature, while such density obtained from the modified Langmuir model is only a function of temperature. Compared to the modified Langmuir model, the SLD model can better capture the adsorbed CH4 density, which allows accurate determination of the absolute CH4 adsorption. Accurately determining the adsorbed amount of CH4 on shale is significant for understanding the mechanisms of shale gas storage and shale methane recovery from shale gas reservoirs.![]()
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Affiliation(s)
- Yeyu Zhang
- College of Energy Resources
- Chengdu University of Technology
- Chengdu
- China
- Sichuan Institute of Coal Field Geological Engineering Exploration and Designing
| | - Shaonan Zhang
- College of Geoscience and Technology
- Southwest Petroleum University
- Chengdu
- China
| | - Zhicheng Wang
- Sichuan Institute of Coal Field Geological Engineering Exploration and Designing
- Chengdu
- China
- Shale Gas Evaluation and Exploitation Key Laboratory of Sichuan Province
- Chengdu
| | - Hucheng Deng
- College of Energy Resources
- Chengdu University of Technology
- Chengdu
- China
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation
| | - Minghui Qi
- Sichuan Institute of Coal Field Geological Engineering Exploration and Designing
- Chengdu
- China
- Shale Gas Evaluation and Exploitation Key Laboratory of Sichuan Province
- Chengdu
| | - Xianfeng Peng
- College of Energy Resources
- Chengdu University of Technology
- Chengdu
- China
| | - Yueliang Liu
- School of Petroleum Engineering
- China University of Petroleum (East China)
- Qingdao
- China
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38
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Siderius DW, Krekelberg WP, Chiang WS, Shen VK, Liu Y. Quasi-Two-Dimensional Phase Transition of Methane Adsorbed in Cylindrical Silica Mesopores. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:14252-14262. [PMID: 29185779 PMCID: PMC5831196 DOI: 10.1021/acs.langmuir.7b03406] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Using Monte Carlo and molecular dynamics simulations, we examine the adsorption of methane in cylindrical silica mesopores in an effort to understand a possible phase transition of adsorbed methane in MCM-41 and SBA-15 silica that was previously identified by an unexpected increase in the adsorbed fluid density following capillary condensation, as measured by small-angle neutron scattering (SANS) [Chiang, W-S., et al., Langmuir 2016, 32, 8849]. Our initial simulation results identify a roughly 10 % increase in the density of the liquidlike adsorbed phase for either an isotherm with increasing pressure or an isobar with decreasing temperature and that this densification is associated with a local maximum in the isosteric enthalpy of adsorption. Subsequent analysis of the simulated fluid, via computation of bond-orientational order parameters of specific annular layers of the adsorbed fluid, showed that the layers undergo an ordering transition from a disordered, amorphous state to one with two-dimensional hexagonal structure. Furthermore, this two-dimensional restructuring of the fluid occurs at the same thermodynamic state points as the aforementioned densification and local maximum in the isosteric enthalpy of adsorption. We thus conclude that the densification of the fluid is the result of structural reorganization, which is signaled by the maximum in the isosteric enthalpy. Owing to the qualitative similarity of the structural transitions in the simulated and experimental methane fluids, we propose this hexagonal reorganization as a plausible explanation of the densification observed in SANS measurements. Lastly, we speculate how this structural transition may impact the transport properties of the adsorbed fluid.
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Affiliation(s)
- Daniel W. Siderius
- Chemical Sciences Division, National Institute of Standards and Technology, 100 Bureau Drive M.S. 8320, Gaithersburg, Maryland 20899, United States
| | - William P. Krekelberg
- Chemical Sciences Division, National Institute of Standards and Technology, 100 Bureau Drive M.S. 8320, Gaithersburg, Maryland 20899, United States
| | - Wei-Shan Chiang
- NIST Center for Neutron Research, National Institute of Standards and Technology, 100 Bureau Drive M.S. 6102, Gaithersburg, Maryland 20899, United States
- Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Colburn Laboratory, Newark, Delaware 19716, United States
| | - Vincent K. Shen
- Chemical Sciences Division, National Institute of Standards and Technology, 100 Bureau Drive M.S. 8320, Gaithersburg, Maryland 20899, United States
| | - Yun Liu
- NIST Center for Neutron Research, National Institute of Standards and Technology, 100 Bureau Drive M.S. 6102, Gaithersburg, Maryland 20899, United States
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39
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Anas M, Gönel AG, Bozbag SE, Erkey C. Thermodynamics of Adsorption of Carbon Dioxide on Various Aerogels. J CO2 UTIL 2017. [DOI: 10.1016/j.jcou.2017.06.008] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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40
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Characterization of Methane Excess and Absolute Adsorption in Various Clay Nanopores from Molecular Simulation. Sci Rep 2017; 7:12040. [PMID: 28931873 PMCID: PMC5607345 DOI: 10.1038/s41598-017-12123-x] [Citation(s) in RCA: 103] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 09/04/2017] [Indexed: 11/08/2022] Open
Abstract
In this work, we use grand canonical Monte Carlo (GCMC) simulation to study methane adsorption in various clay nanopores and analyze different approaches to characterize the absolute adsorption. As an important constituent of shale, clay minerals can have significant amount of nanopores, which greatly contribute to the gas-in-place in shale. In previous works, absolute adsorption is often calculated from the excess adsorption and bulk liquid phase density of absorbate. We find that methane adsorbed phase density keeps increasing with pressure up to 80 MPa. Even with updated adsorbed phase density from GCMC, there is a significant error in absolute adsorption calculation. Thus, we propose to use the excess adsorption and adsorbed phase volume to calculate absolute adsorption and reduce the discrepancy to less than 3% at high pressure conditions. We also find that the supercritical Dubinin-Radushkevich (SDR) fitting method which is commonly used in experiments to convert the excess adsorption to absolute adsorption may not have a solid physical foundation for methane adsorption. The methane excess and absolute adsorptions per specific surface area are similar for different clay minerals in line with previous experimental data. In mesopores, the excess and absolute adsorptions per specific surface area become insensitive to pore size. Our work should provide important fundamental understandings and insights into accurate estimation of gas-in-place in shale reservoirs.
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Shkilev VP, Lobanov VV. Thermodynamics of adsorption on deformable adsorbents. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2017. [DOI: 10.1134/s0036024417040276] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Brandani S, Mangano E, Luberti M. Net, excess and absolute adsorption in mixed gas adsorption. ADSORPTION 2017; 23:569-576. [PMID: 32103859 PMCID: PMC7010369 DOI: 10.1007/s10450-017-9875-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Revised: 01/30/2017] [Accepted: 02/01/2017] [Indexed: 11/30/2022]
Abstract
The formulation of a thermodynamic framework for mixtures based on absolute, excess or net adsorption is discussed and the qualitative dependence with pressure and fugacity is used to highlight a practical issue that arises when extending the formulations to mixtures and to the Ideal Adsorbed Solution Theory (IAST). Two important conclusions are derived: the correct fundamental thermodynamic variable is the absolute adsorbed amount; there is only one possible definition of the ideal adsorbed solution and whichever starting point is used the same final IAST equations are obtained, contrary to what has been reported in the literature.
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Affiliation(s)
- Stefano Brandani
- Scottish Carbon Capture and Storage, School of Engineering, The University Edinburgh, The King’s Buildings, Mayfield Road, Edinburgh, EH9 3FB UK
| | - Enzo Mangano
- Scottish Carbon Capture and Storage, School of Engineering, The University Edinburgh, The King’s Buildings, Mayfield Road, Edinburgh, EH9 3FB UK
| | - Mauro Luberti
- Scottish Carbon Capture and Storage, School of Engineering, The University Edinburgh, The King’s Buildings, Mayfield Road, Edinburgh, EH9 3FB UK
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Tian Y, Wu J. Differential Heat of Adsorption and Isosteres. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:996-1003. [PMID: 28064481 DOI: 10.1021/acs.langmuir.7b00004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Heat of adsorption is a basic thermodynamic property extensively used not only for understanding thermal effects and heat management in industrial gas storage and separation processes but also for development and validation of adsorption models and materials force fields. Despite a long history of theoretical studies and a vast experimental literature, controversies often arise in the thermodynamic analysis of heat effects due to various assumptions used to describe gas adsorption and inconsistencies between direct calorimetric measurements and isosteric heat obtained from various adsorption isotherms. Here we present a rigorous theoretical procedure for predicting isosteric heat without any assumption about the geometry of porous adsorbents or operating conditions. Quantitative relations between the differential heat and various isosteres have been established with the grand-canonical Monte Carlo simulation for gas adsorption in amorphous as well as crystalline porous materials. The inconsistencies and practical issues with conventional methods for the analysis of the heat effect have been clarified in the context of the exact results for model systems. Via the resolution of a number of controversies about heat analysis, we hope that the new theoretical procedure will be adopted for both fundamental research and industrial applications of gas adsorption processes.
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Affiliation(s)
- Yun Tian
- Department of Chemical and Environmental Engineering, University of California , Riverside, California 92521, United States
| | - Jianzhong Wu
- Department of Chemical and Environmental Engineering, University of California , Riverside, California 92521, United States
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Enthalpic Contribution of Ni(II) in the Interaction between Carbonaceous Material and Aqueous Solution. J CHEM-NY 2017. [DOI: 10.1155/2017/7308024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Solid adsorbents were prepared from corn cob that was modified with a solution of HNO3 6 M at different contact times. The solids are characterized by physical N2 adsorption at 77 K to know their surface area by applying the BET model and surface chemistry is determined using the Bohem method. Once we have prepared the adsorbents we determine the immersion enthalpy, ΔHim, of the solids in Ni(II) aqueous solutions of different concentrations between 20 and 800 mg·L−1, with values for ΔHim between 10.0 and 35.3 J·g−1. From the results obtained for the immersion enthalpy in function of the ion Ni(II) concentration we calculate the contribution to the immersion enthalpy that corresponds to the ion when it is treated with the system adsorbent-solution as a mixture in which the solid, the solvent, and the adsorbate are involved. The solution thermodynamics allows for establishing the enthalpic changes that bring the ion in function of the concentration and the intensity of the interaction of solid-metal ion that is favored by the presence of acid groups in the solid.
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Rouquerol J, Rouquerol F, Llewellyn P, Denoyel R. Surface excess amounts in high-pressure gas adsorption: Issues and benefits. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2015.10.045] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Brandani S, Mangano E, Sarkisov L. Net, excess and absolute adsorption and adsorption of helium. ADSORPTION 2016; 22:261-276. [PMID: 32269423 PMCID: PMC7115088 DOI: 10.1007/s10450-016-9766-0] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Revised: 01/12/2016] [Accepted: 01/16/2016] [Indexed: 12/02/2022]
Abstract
The definitions of absolute, excess and net adsorption in microporous materials are used to identify the correct limits at zero and infinite pressure. Absolute adsorption is shown to be the fundamental thermodynamic property and methods to determine the solid density that includes the micropore volume are discussed. A simple means to define when it is necessary to distinguish between the three definitions at low pressure is presented. To highlight the practical implications of the analysis the case of adsorption of helium is considered in detail and a combination of experiments and molecular simulations is used to clarify how to interpret adsorption measurements for weakly adsorbed components.
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Affiliation(s)
- Stefano Brandani
- Scottish Carbon Capture and Storage, School of Engineering, The University Edinburgh, The King’s Buildings, Mayfield Road, Edinburgh, EH9 3FB UK
| | - Enzo Mangano
- Scottish Carbon Capture and Storage, School of Engineering, The University Edinburgh, The King’s Buildings, Mayfield Road, Edinburgh, EH9 3FB UK
| | - Lev Sarkisov
- Scottish Carbon Capture and Storage, School of Engineering, The University Edinburgh, The King’s Buildings, Mayfield Road, Edinburgh, EH9 3FB UK
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BONAKALA SATYANARAYANA, BALASUBRAMANIAN SUNDARAM. Modelling Gas Adsorption in Porous Solids: Roles of Surface Chemistry and Pore Architecture. J CHEM SCI 2015. [DOI: 10.1007/s12039-015-0939-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Madani SH, Sedghi S, Biggs MJ, Pendleton P. Analysis of Adsorbate-Adsorbate and Adsorbate-Adsorbent Interactions to Decode Isosteric Heats of Gas Adsorption. Chemphyschem 2015; 16:3797-805. [PMID: 26538339 DOI: 10.1002/cphc.201500881] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Indexed: 11/06/2022]
Affiliation(s)
- S. Hadi Madani
- Ian Wark Research Institute; University of South Australia; Mawson Lakes SA 5095 Australia), Tel: +61 (0)8 8302 2188
| | - Saeid Sedghi
- School of Chemical Engineering; University of Adelaide; Adelaide SA 5005 Australia
| | - Mark J. Biggs
- School of Chemical Engineering; University of Adelaide; Adelaide SA 5005 Australia
- School of Science; Loughborough University; LE11 3TU Leicestershire UK
| | - Phillip Pendleton
- Ian Wark Research Institute; University of South Australia; Mawson Lakes SA 5095 Australia), Tel: +61 (0)8 8302 2188
- Sansom Institute; University of South Australia; Adelaide SA 5001 Australia
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Keller J, Göbel M. Oscillometric—Volumetric Measurements of Pure Gas Adsorption Equilibria Devoid of the Non-Adsorption of Helium Hypothesis. ADSORPT SCI TECHNOL 2015. [DOI: 10.1260/0263-6174.33.9.793] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- J.U. Keller
- Institute Fluid and Thermodynamics, University of Siegen, Siegen, Germany
| | - M.U. Göbel
- Institute Fluid and Thermodynamics, University of Siegen, Siegen, Germany
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Walton KS, Sholl DS. Predicting multicomponent adsorption: 50 years of the ideal adsorbed solution theory. AIChE J 2015. [DOI: 10.1002/aic.14878] [Citation(s) in RCA: 242] [Impact Index Per Article: 26.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Krista S. Walton
- School of Chemical and Biomolecular Engineering; Georgia Institute of Technology; Atlanta GA 30332
| | - David S. Sholl
- School of Chemical and Biomolecular Engineering; Georgia Institute of Technology; Atlanta GA 30332
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