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Marin-Rimoldi E, Yancey AD, Shiflett MB, Maginn EJ. Adsorption of difluoromethane (HFC-32) and pentafluoroethane (HFC-125) and their mixtures in silicalite-1: An experimental and Monte Carlo simulation study. J Chem Phys 2024; 161:074701. [PMID: 39145562 DOI: 10.1063/5.0221413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Accepted: 07/29/2024] [Indexed: 08/16/2024] Open
Abstract
Hydrofluorocarbons are a class of fluorinated molecules used extensively in residential and industrial refrigeration systems. This study examines the potential of using adsorption processes with the silicalite-1 zeolite to separate a mixture of difluoromethane (CH2F2, HFC-32) and pentafluoroethane (CF3CF2H, HFC-125) at various concentrations. Pure adsorption data were measured using a XEMIS gravimetric microbalance, whereas binary data were determined using the Integral Mass Balance method. Grand canonical Monte Carlo molecular simulations were performed with the Cassandra package. We found that the results from molecular simulations are in satisfactory agreement with experimental loading measurements. Moreover, we show that ideal adsorbed solution theory could not quantitatively match the experimental or computational measurements of binary adsorption or selectivity. Molecular simulations show that refrigerant molecules do not have a uniform distribution in the zeolite framework.
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Affiliation(s)
- Eliseo Marin-Rimoldi
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - Andrew D Yancey
- Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, Kansas 66045, USA
- Wonderful Institute for Sustainable Engineering, University of Kansas, Lawrence, Kansas 66045, USA
| | - Mark B Shiflett
- Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, Kansas 66045, USA
- Wonderful Institute for Sustainable Engineering, University of Kansas, Lawrence, Kansas 66045, USA
| | - Edward J Maginn
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA
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Karimi M, Shirzad M, Silva JAC, Rodrigues AE. Carbon dioxide separation and capture by adsorption: a review. ENVIRONMENTAL CHEMISTRY LETTERS 2023; 21:1-44. [PMID: 37362013 PMCID: PMC10018639 DOI: 10.1007/s10311-023-01589-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 02/28/2023] [Indexed: 06/02/2023]
Abstract
Rising adverse impact of climate change caused by anthropogenic activities is calling for advanced methods to reduce carbon dioxide emissions. Here, we review adsorption technologies for carbon dioxide capture with focus on materials, techniques, and processes, additive manufacturing, direct air capture, machine learning, life cycle assessment, commercialization and scale-up.
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Affiliation(s)
- Mohsen Karimi
- Laboratory of Separation and Reaction Engineering (LSRE), Associate Laboratory LSRE/LCM, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
- ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Mohammad Shirzad
- Laboratory of Separation and Reaction Engineering (LSRE), Associate Laboratory LSRE/LCM, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
- ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - José A. C. Silva
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Alírio E. Rodrigues
- Laboratory of Separation and Reaction Engineering (LSRE), Associate Laboratory LSRE/LCM, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
- ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
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3
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Nath K, Ahmed A, Siegel DJ, Matzger AJ. Microscale Determination of Binary Gas Adsorption Isotherms in MOFs. J Am Chem Soc 2022; 144:20939-20946. [DOI: 10.1021/jacs.2c09818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Karabi Nath
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan48109, United States
| | - Alauddin Ahmed
- Mechanical Engineering Department, University of Michigan, Ann Arbor, Michigan48109, United States
| | - Donald J. Siegel
- Mechanical Engineering Department, University of Michigan, Ann Arbor, Michigan48109, United States
- Materials Science & Engineering, University of Michigan, Ann Arbor, Michigan48109, United States
- Applied Physics Program, University of Michigan, Ann Arbor, Michigan48109, United States
| | - Adam J. Matzger
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan48109, United States
- Macromolecular Science and Engineering Program, University of Michigan, Ann Arbor, Michigan48109-1055, United States
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Yancey AD, Broom DP, Roper MG, Benham MJ, Corbin DR, Shiflett MB. Separation of Azeotropic Hydrofluorocarbon Refrigerant Mixtures: Thermodynamic and Kinetic Modeling for Binary Adsorption of HFC-32 and HFC-125 on Zeolite 5A. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:10836-10853. [PMID: 35998345 DOI: 10.1021/acs.langmuir.2c01491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Hydrofluorocarbons (HFCs) have been used extensively as refrigerants over the past four decades; however, HFCs are currently being phased out due to large global warming potentials. As the next generation of hydrofluoroolefin refrigerants are phased in, action must be taken to responsibly and sustainably deal with the HFCs currently in circulation. Ideally, unused HFCs can be reclaimed and recycled; however, many HFCs in circulation are azeotropic or near-azeotropic mixtures and must be separated before recycling. Previously, pure gas isotherm data were presented for both HFC-125 (pentafluoroethane) and HFC-32 (difluoromethane) with zeolite 5A, and it was concluded that this zeolite could separate refrigerant R-410A (50/50 wt % HFC-125/HFC-32). To further investigate the separation capabilities of zeolite 5A, binary adsorption was measured for the same system using the Integral Mass Balance method. Zeolite 5A showed a selectivity of 9.6-10.9 for HFC-32 over the composition range of 25-75 mol % HFC-125. Adsorbed phase activity coefficients were calculated from binary adsorption data. The Spreading Pressure Dependent, modified nonrandom two-liquid, and modified Wilson activity coefficient models were fit to experimental data, and the resulting activity coefficient models were used in Real Adsorbed Solution Theory (RAST). RAST binary adsorption model predictions were compared with Ideal Adsorbed Solution Theory (IAST) predictions made using the Dual-Site Langmuir, Tóth, and Jensen and Seaton pure gas isotherm models. Both IAST and RAST yielded qualitatively accurate predictions; however, quantitative accuracy was greatly improved using RAST models. Diffusion behavior of HFC-125 and HFC-32 was also investigated by fitting the isothermal Fickian diffusion model to kinetic data. Molecular-level phenomena were investigated to understand both thermodynamic and kinetic behaviors.
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Affiliation(s)
- Andrew D Yancey
- Institute for Sustainable Engineering, University of Kansas, 1530 W. 15th St., Lawrence 66045, Kansas, United States
- Department of Chemical and Petroleum Engineering, University of Kansas, 1536 W. 15th St., Lawrence 66045, Kansas, United States
| | - Darren P Broom
- Hiden Isochema Ltd, 422 Europa Boulevard, Warrington WA5 7TS, United Kingdom
| | - Mark G Roper
- Hiden Isochema Ltd, 422 Europa Boulevard, Warrington WA5 7TS, United Kingdom
| | - Michael J Benham
- Hiden Isochema Ltd, 422 Europa Boulevard, Warrington WA5 7TS, United Kingdom
| | - David R Corbin
- Institute for Sustainable Engineering, University of Kansas, 1530 W. 15th St., Lawrence 66045, Kansas, United States
- Department of Chemical and Petroleum Engineering, University of Kansas, 1536 W. 15th St., Lawrence 66045, Kansas, United States
| | - Mark B Shiflett
- Institute for Sustainable Engineering, University of Kansas, 1530 W. 15th St., Lawrence 66045, Kansas, United States
- Department of Chemical and Petroleum Engineering, University of Kansas, 1536 W. 15th St., Lawrence 66045, Kansas, United States
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Kaneko Y, Lackner KS. Kinetic model for moisture-controlled CO 2 sorption. Phys Chem Chem Phys 2022; 24:21061-21077. [PMID: 36017678 DOI: 10.1039/d2cp02440c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The understanding of the sorption/desorption kinetics is essential for practical applications of moisture-controlled CO2 sorption. We introduce an analytic model of the kinetics of moisture-controlled CO2 sorption and its interpretation in two limiting cases. In one case, chemical reaction kinetics on pore surfaces dominates, in the other case, diffusive transport through the sorbent defines the kinetics. We show that reaction kinetics, which is dominant in the first case, can be expressed as a linear combination of 1st and 2nd order kinetics in agreement with the static isotherm equation derived and validated in a previous paper. The interior transport kinetics can be described by non-linear diffusion equations. By combining all carbon species into a single equation, we can eliminate - in certain limits - the source terms associated with chemical reactions. In this case, the governing equation is . For a sorbent in a form of a flat sheet or a membrane, one can maintain the same functional form of a diffusion equation by introducing a generalized effective diffusivity DM that combines contributions from both surface chemical reaction kinetics and interior diffusive transport kinetics. Experimental data of transient CO2 flux in a preconditioned commercial anion exchange membrane fit well to the 1st order model as long as very dry states are avoided, validating the theory. The observed DM for a preconditioned commercial anion exchange membrane ranges from 6.6 × 10-14 to 7.1 × 10-14 m2 s-1 at 35 °C. These small values compared to typical ionic diffusivities imply a very slow kinetics, which will be the largest issue that needs to be addressed for practical application. The collected transient CO2 flux data are used to predict the magnitude of a continuous CO2 pumping flux in an active membrane that transports CO2 against a CO2 concentration gradient. The pumped CO2 flux is supported by water flux due to a water concentration gradient.
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Affiliation(s)
- Yuta Kaneko
- School of Sustainable Engineering & The Built Environment, Arizona State University, Tempe, AZ 85287, USA.
| | - Klaus S Lackner
- School of Sustainable Engineering & The Built Environment, Arizona State University, Tempe, AZ 85287, USA.
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Baca KR, Broom DP, Roper MG, Benham MJ, Shiflett MB. First Measurements for the Simultaneous Sorption of Difluoromethane and Pentafluoroethane Mixtures in Ionic liquids Using the Integral Mass Balance Method. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00497] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kalin R. Baca
- Institute for Sustainable Engineering, 1536 W. 15th Street, Lawrence, Kansas 66045, United States
- Department of Chemical and Petroleum Engineering, University of Kansas, 1530 W. 15th Street, Lawrence, Kansas 66045, United States
| | - Darren P. Broom
- Hiden Isochema Ltd, 422, Europa Boulevard, Warrington, United Kingdom WA5 7TS
| | - Mark G. Roper
- Hiden Isochema Ltd, 422, Europa Boulevard, Warrington, United Kingdom WA5 7TS
| | - Michael J. Benham
- Hiden Isochema Ltd, 422, Europa Boulevard, Warrington, United Kingdom WA5 7TS
| | - Mark B. Shiflett
- Institute for Sustainable Engineering, 1536 W. 15th Street, Lawrence, Kansas 66045, United States
- Department of Chemical and Petroleum Engineering, University of Kansas, 1530 W. 15th Street, Lawrence, Kansas 66045, United States
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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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Shade D, Bout BWS, Sholl DS, Walton KS. Opening the Toolbox: 18 Experimental Techniques for Measurement of Mixed Gas Adsorption. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c03756] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Danny Shade
- School of Chemical and Biomolecular Engineering Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Brandon W. S. Bout
- School of Chemical and Biomolecular Engineering Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - David S. Sholl
- School of Chemical and Biomolecular Engineering Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Krista S. Walton
- School of Chemical and Biomolecular Engineering Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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