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Cheng Z, Li S, Tocci E, Saielli G, Gugliuzza A, Wang Y. Pathway for Water Transport through Breathable Nanocomposite Membranes of PEBAX with Ionic Liquid [C 12C 1im]Cl. MEMBRANES 2023; 13:749. [PMID: 37755171 PMCID: PMC10537744 DOI: 10.3390/membranes13090749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 08/18/2023] [Accepted: 08/20/2023] [Indexed: 09/28/2023]
Abstract
Water transport through membranes is an attractive topic among the research dedicated to dehydration processes, microenvironment regulation, or more simply, recovery of freshwater. Herein, an atomistic computer simulation is proposed to provide new insights about a water vapor transport mechanism through PEBAX membranes filled with ionic liquid (IL) [C12C1im]Cl. Starting from experimental evidence that indicates an effective increase in water permeation as the IL is added to the polymer matrix (e.g., up to 85·10-3 (g·m)/(m2·day) at 318.15 K for PEBAX@2533 membranes loaded with 70% of IL), molecular dynamics simulations are proposed to explore the key role of IL in water transport inside membranes. The polar region composed of anions and cationic head groups of the IL is demonstrated to serve as the pathway for water transport through the membrane. Water molecules always stay near the pathway, which becomes wider and thus has a larger water-accessible area with increasing IL concentration. Hence, the diffusion coefficients of water molecules and ions increase as the IL concentration increases. The simulation provides useful indications about a microscopic mechanism that regulates the transport of water vapor through a kind of PEBAX/IL membrane, resulting in full agreement with the experimental evidence.
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Affiliation(s)
- Ziqi Cheng
- CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shen Li
- CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Elena Tocci
- National Research Council―Institute on Membrane Technology (CNR-ITM), Via Pietro Bucci 17C, 87036 Rende, Italy;
| | - Giacomo Saielli
- National Research Council―Institute on Membrane Technology (CNR-ITM), Unit of Padova, Via Marzolo, 1, 35131 Padova, Italy;
- Department of Chemical Sciences, University of Padova, Via Marzolo, 1, 35131 Padova, Italy
| | - Annarosa Gugliuzza
- National Research Council―Institute on Membrane Technology (CNR-ITM), Via Pietro Bucci 17C, 87036 Rende, Italy;
| | - Yanting Wang
- CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
- Center for Theoretical Interdisciplinary Sciences, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China
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Polak D, Szwast M. Analysis of the Influence of Process Parameters on the Properties of Homogeneous and Heterogeneous Membranes for Gas Separation. MEMBRANES 2022; 12:1016. [PMID: 36295775 PMCID: PMC9608494 DOI: 10.3390/membranes12101016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 10/13/2022] [Accepted: 10/14/2022] [Indexed: 06/16/2023]
Abstract
Heterogeneous membranes, otherwise known as Mixed Matrix Membranes (MMMs), which are used in gas separation processes, are the subject of growing interest. This is due to their potential to improve the process properties of membranes compared to those of homogeneous membranes, i.e., those made of polymer only. Using such membranes in a process involves subjecting them to varying temperatures and pressures. This paper investigates the effects of temperature and feed pressure on the process properties of homogeneous and heterogeneous membranes. Membranes made of Pebax®2533 copolymer and containing additional fillers such as SiO2, ZIF-8, and POSS-Ph were investigated. Tests were performed over a temperature range of 25-55 °C and a pressure range of 2-8 bar for N2, CH4, and CO2 gases. It was found that temperature positively influences the increase in permeability, while pressure influences permeability depending on the gas used, which is related to the effect of pressure on the solubility of the gas in the membrane.
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Affiliation(s)
| | - Maciej Szwast
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warynskiego 1, 00-645 Warsaw, Poland
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Deng J, Dai Z, Deng L. Effects of the Morphology of the ZIF on the CO 2 Separation Performance of MMMs. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c01946] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jing Deng
- Department of Chemical Engineering, Norwegian University of Science and Technology, 7491 Trondheim, Norway
- School of Chemical, Biological and Material Engineering, University of Oklahoma, 73019 Norman, Oklahoma, United States
| | - Zhongde Dai
- Department of Chemical Engineering, Norwegian University of Science and Technology, 7491 Trondheim, Norway
- College of Architecture & Environment, Sichuan University, 610065 Chengdu, China
| | - Liyuan Deng
- Department of Chemical Engineering, Norwegian University of Science and Technology, 7491 Trondheim, Norway
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Extraction of dissolved methane from aqueous solutions by membranes: Modelling and parametric studies. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2019.117594] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Scholes CA, Chen GQ, Lu HT, Kentish SE. Crosslinked PEG and PEBAX Membranes for Concurrent Permeation of Water and Carbon Dioxide. MEMBRANES 2015; 6:membranes6010001. [PMID: 26703745 PMCID: PMC4812407 DOI: 10.3390/membranes6010001] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Revised: 12/11/2015] [Accepted: 12/17/2015] [Indexed: 11/16/2022]
Abstract
Membrane technology can be used for both post combustion carbon dioxide capture and acidic gas sweetening and dehydration of natural gas. These processes are especially suited for polymeric membranes with polyether functionality, because of the high affinity of this species for both H2O and CO2. Here, both crosslinked polyethylene glycol diacrylate and a polyether-polyamide block copolymer (PEBAX 2533©) are studied for their ability to separate CO2 from CH4 and N2 under single and mixed gas conditions, for both dry and wet feeds, as well as when 500 ppm H2S is present. The solubility of gases within these polymers is shown to be better correlated with the Lennard Jones well depth than with critical temperature. Under dry mixed gas conditions, CO2 permeability is reduced compared to the single gas measurement because of competitive sorption from CH4 or N2. However, selectivity for CO2 is retained in both polymers. The presence of water in the feed is observed to swell the PEG membrane resulting in a significant increase in CO2 permeability relative to the dry gas scenario. Importantly, the selectivity is again retained under wet feed gas conditions. The presence of H2S is observed to only slightly reduce CO2 permeability through both membranes.
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Affiliation(s)
- Colin A Scholes
- Peter Cook Centre for Carbon Capture and Storage Research, Department of Chemical & Biomolecular Engineering, The University of Melbourne, Melbourne VIC 3010, Australia.
| | - George Q Chen
- Peter Cook Centre for Carbon Capture and Storage Research, Department of Chemical & Biomolecular Engineering, The University of Melbourne, Melbourne VIC 3010, Australia.
| | - Hiep T Lu
- Peter Cook Centre for Carbon Capture and Storage Research, Department of Chemical & Biomolecular Engineering, The University of Melbourne, Melbourne VIC 3010, Australia.
| | - Sandra E Kentish
- Peter Cook Centre for Carbon Capture and Storage Research, Department of Chemical & Biomolecular Engineering, The University of Melbourne, Melbourne VIC 3010, Australia.
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De Lorenzo L, Tocci E, Gugliuzza A, Drioli E. Assembly of nanocomposite PEBAX membranes: A complementary study of affinity and clusterization phenomena. J Memb Sci 2012. [DOI: 10.1016/j.memsci.2012.06.050] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Pure and Modified Co-Poly(amide-12-b-ethylene oxide) Membranes for Gas Separation Studied by Molecular Investigations. MEMBRANES 2012; 2:346-66. [PMID: 24958285 PMCID: PMC4021908 DOI: 10.3390/membranes2030346] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Revised: 06/05/2012] [Accepted: 06/13/2012] [Indexed: 11/24/2022]
Abstract
This paper deals with a theoretical investigation of gas transport properties in a pure and modified PEBAX block copolymer membrane with N-ethyl-o/p-toluene sulfonamide (KET) as additive molecules. Molecular dynamics simulations using COMPASS force field, Gusev-Suter Transition State Theory (TST) and Monte Carlo methods were used. Bulk models of PEBAX and PEBAX/KET in different copolymer/additive compositions were assembled and analyzed to evaluate gas permeability and morphology to characterize structure-performance relationships.
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Pilot plant performance of rubbery polymeric membranes for carbon dioxide separation from syngas. J Memb Sci 2012. [DOI: 10.1016/j.memsci.2011.11.011] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Lara-Estévez JCI, Prado LASDA, Schulte K, Bucio E. PEBAX<sup>TM</sup>-Silanized Al<sub>2</sub>O<sub>3</sub>Composite. Synthesis and Characterization. ACTA ACUST UNITED AC 2012. [DOI: 10.4236/ojpchem.2012.22008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Trotta F, Drioli E, Luda MP, Musso S, Martina K, Mio SC. Amino derivatives of PEEK-WC. J Appl Polym Sci 2010. [DOI: 10.1002/app.32015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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De Luca G, Gugliuzza A, Drioli E. Competitive Hydrogen-Bonding Interactions in Modified Polymer Membranes: A Density Functional Theory Investigation. J Phys Chem B 2009; 113:5473-7. [DOI: 10.1021/jp900228z] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- G. De Luca
- Research Institute on Membrane Technology (ITM-CNR) and Department of Chemical Engineering and Materials, University of Calabria, Via P. Bucci, I-87030 Rende (CS), Italy
| | - A. Gugliuzza
- Research Institute on Membrane Technology (ITM-CNR) and Department of Chemical Engineering and Materials, University of Calabria, Via P. Bucci, I-87030 Rende (CS), Italy
| | - E. Drioli
- Research Institute on Membrane Technology (ITM-CNR) and Department of Chemical Engineering and Materials, University of Calabria, Via P. Bucci, I-87030 Rende (CS), Italy
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Transport properties of a co-poly(amide-12-b-ethylene oxide) membrane: A comparative study between experimental and molecular modelling results. J Memb Sci 2008. [DOI: 10.1016/j.memsci.2008.06.031] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Sridhar S, Aminabhavi TM, Mayor SJ, Ramakrishna M. Permeation of Carbon Dioxide and Methane Gases through Novel Silver-Incorporated Thin Film Composite Pebax Membranes. Ind Eng Chem Res 2007. [DOI: 10.1021/ie070114k] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- S. Sridhar
- Membrane Separations Division, Center of Excellence in Polymer Science, Karnatak University, Dharwad 580 003, India; Permionics Membranes Pvt. Ltd., Vadodara 390 016, India; and Chemical Engineering Division, Indian Institute of Chemical Technology, Hyderabad 500 007, India
| | - T. M. Aminabhavi
- Membrane Separations Division, Center of Excellence in Polymer Science, Karnatak University, Dharwad 580 003, India; Permionics Membranes Pvt. Ltd., Vadodara 390 016, India; and Chemical Engineering Division, Indian Institute of Chemical Technology, Hyderabad 500 007, India
| | - S. J. Mayor
- Membrane Separations Division, Center of Excellence in Polymer Science, Karnatak University, Dharwad 580 003, India; Permionics Membranes Pvt. Ltd., Vadodara 390 016, India; and Chemical Engineering Division, Indian Institute of Chemical Technology, Hyderabad 500 007, India
| | - M. Ramakrishna
- Membrane Separations Division, Center of Excellence in Polymer Science, Karnatak University, Dharwad 580 003, India; Permionics Membranes Pvt. Ltd., Vadodara 390 016, India; and Chemical Engineering Division, Indian Institute of Chemical Technology, Hyderabad 500 007, India
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Gugliuzza A, Luca GD, Tocci E, Lorenzo LD, Drioli E. Intermolecular Interactions as Controlling Factor for Water Sorption into Polymer Membranes. J Phys Chem B 2007; 111:8868-78. [PMID: 17608518 DOI: 10.1021/jp071776q] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A multidisciplinary approach was used for delineating the mechanisms controlling water sorption into modified block co-poly-(ether/amide) (PEBAX) membranes. In particular, incorporation of aromatic sulfonamide (KET) into the polymer matrix led to a nonlinear increase of water sorption in the membrane. The modification in sorption was accompanied by a nonlinear behavior in membrane surface energies. Infrared analysis revealed a different availability and accessibility of free polar groups supporting the formation of hydrogen bonding as a function of modifier concentration. A combination of both experimental and theoretical procedures was used to analyze the molecular processes of water sorption on PEBAX membranes. Molecular dynamics (MD) and quantum chemical (QC) calculations demonstrated that the formation of KET-KET dimers in the polymeric matrix led to a decrease in the interaction energy between water and modifiers. In addition, no variations in the dipole moments of water-dimer structures were found in comparison to a single KET and water-KET molecule. The formation of water-dimer complexes at higher concentration of modifier decreases the number of the dipole moment, thus preventing the polarization of polymer chains.
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Affiliation(s)
- A Gugliuzza
- Research Institute on Membrane Technology (ITM-CNR), Via Pietro Bucci, Cubo 17/C, I-87030 Rende (CS), Italy.
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Gugliuzza A, Fabiano R, Garavaglia MG, Spisso A, Drioli E. Study of the surface character as responsible for controlling interfacial forces at membrane–feed interface. J Colloid Interface Sci 2006; 303:388-403. [PMID: 16987521 DOI: 10.1016/j.jcis.2006.07.017] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2006] [Revised: 06/29/2006] [Accepted: 07/01/2006] [Indexed: 11/21/2022]
Abstract
The role of the interfacial forces was emphasized in interactive processes, involving membrane surface and penetrating molecules. The surface character controlling the dissolution process of some species (CO2, H2O, C3H6O2, C4H8O2, C5H10O2) was evaluated in relation to the supra-molecular chemistry of membranes based on 80PTMO/PA12. Infrared analyses combined with the estimation of the hydrophilic and hydrophobic domains of the membrane surface yielded useful information about the distribution, availability and accessibility of the polar moieties responsible for the penetrant sorption. At the interface, attractive Lewis acid/base interactions such as H-bonding directed the sorption of vapor species into the membranes, whereas quadrupolar CO2 participated in specific Lifshitz-van der Waals interactions with the modified polymers. In both the cases, the presence of additional polar moieties such as carbonyl, sulfonamide, and hydroxyl groups enhanced the affinity of the Pebax-based membranes for the penetrating species considered in this work. As a result, the quantification of the reactivity of a membrane surface for specific molecules may allow predictive models to be constructed and selective membranes to be designed.
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Affiliation(s)
- A Gugliuzza
- Research Institute on Membrane Technology, ITM-CNR, Via Pietro Bucci 17/C, I-87030 Rende, Italy.
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