51
|
Callewaert M, Desmet G, Ottevaere H, De Malsche W. Detailed kinetic performance analysis of micromachined radially elongated pillar array columns for liquid chromatography. J Chromatogr A 2016; 1433:75-84. [DOI: 10.1016/j.chroma.2015.12.086] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Revised: 12/17/2015] [Accepted: 12/18/2015] [Indexed: 11/28/2022]
|
52
|
Abstract
This review presents the state-of-the-art of multiscale adsorption and transport in hierarchical porous materials.
Collapse
Affiliation(s)
- Benoit Coasne
- Université Grenoble Alpes
- LIPHY
- F-38000 Grenoble
- France
- CNRS
| |
Collapse
|
53
|
Müllner T, Unger KK, Tallarek U. Characterization of microscopic disorder in reconstructed porous materials and assessment of mass transport-relevant structural descriptors. NEW J CHEM 2016. [DOI: 10.1039/c5nj03346b] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
54
|
Dynamic modeling of fixed-bed adsorption of flue gas using a variable mass transfer model. KOREAN J CHEM ENG 2015. [DOI: 10.1007/s11814-015-0180-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
55
|
Fisch AG, dos Santos JHZ, Secchi AR, Cardozo NSM. Heterogeneous Catalysts for Olefin Polymerization: Mathematical Model for Catalyst Particle Fragmentation. Ind Eng Chem Res 2015. [DOI: 10.1021/acs.iecr.5b03740] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Adriano G. Fisch
- Chemical
Engineering Department, Universidade Luterana do Brasil, Avenida Farroupilha
8001, 92425-900, Canoas, RS Brazil
| | - João H. Z. dos Santos
- Chemistry
Institute, Universidade Federal do Rio Grande do Sul, Avenida Bento
Gonçalves 9500, 91501-970 Porto Alegre, RS Brazil
| | - Argimiro R. Secchi
- PEQ/COPPE, Universidade Federal do Rio de Janeiro, Centro de
Tecnologia G-116, Cx.P. 68502, 21941-972, Rio de
Janeiro, RJ Brazil
| | - Nilo S. M. Cardozo
- Chemical
Engineering Department, Universidade Federal do Rio Grande do Sul, Rua Engenheiro Luis Englert s/n, 90040-040 Porto Alegre, RS Brazil
| |
Collapse
|
56
|
Computational investigation of longitudinal diffusion, eddy dispersion, and trans-particle mass transfer in bulk, random packings of core–shell particles with varied shell thickness and shell diffusion coefficient. J Chromatogr A 2015; 1407:139-56. [DOI: 10.1016/j.chroma.2015.06.047] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Revised: 06/09/2015] [Accepted: 06/14/2015] [Indexed: 11/22/2022]
|
57
|
|
58
|
Particle Shape Effects on Hydraulic and Electric Tortuosities: A Novel Empirical Tortuosity Model Based on van Genuchten-Type Function. Transp Porous Media 2015. [DOI: 10.1007/s11242-015-0467-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
59
|
Mueller R, Zhang S, Klink M, Bäumer M, Vasenkov S. The origin of a large apparent tortuosity factor for the Knudsen diffusion inside monoliths of a samaria–alumina aerogel catalyst: a diffusion NMR study. Phys Chem Chem Phys 2015; 17:27481-7. [DOI: 10.1039/c5cp04609b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The contribution from surface diffusion into the apparent tortuosity factor can be separated for light gases in a porous catalyst.
Collapse
Affiliation(s)
- R. Mueller
- Department of Chemical Engineering
- University of Florida
- Gainesvlle
- USA
| | - S. Zhang
- Department of Chemical Engineering
- University of Florida
- Gainesvlle
- USA
| | - M. Klink
- Institute for Applied and Physical Chemistry
- University of Bremen
- Bremen
- Germany
| | - M. Bäumer
- Institute for Applied and Physical Chemistry
- University of Bremen
- Bremen
- Germany
| | - S. Vasenkov
- Department of Chemical Engineering
- University of Florida
- Gainesvlle
- USA
| |
Collapse
|
60
|
Cooper J, Harris JM. Fluorescence-Correlation Spectroscopy Study of Molecular Transport within Reversed-Phase Chromatographic Particles Compared to Planar Model Surfaces. Anal Chem 2014; 86:11766-72. [DOI: 10.1021/ac503250a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Justin Cooper
- Department of Chemistry, University of Utah, 315 South 1400
East, Salt Lake City, Utah 84112-0805, United States
| | - Joel M. Harris
- Department of Chemistry, University of Utah, 315 South 1400
East, Salt Lake City, Utah 84112-0805, United States
| |
Collapse
|
61
|
Physical and Bioengineering Properties of Polyvinyl Alcohol Lens-Shaped Particles Versus Spherical Polyelectrolyte Complex Microcapsules as Immobilisation Matrices for a Whole-Cell Baeyer–Villiger Monooxygenase. Appl Biochem Biotechnol 2014; 174:1834-49. [DOI: 10.1007/s12010-014-1174-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Accepted: 08/15/2014] [Indexed: 12/30/2022]
|
62
|
Curcio E, Piscioneri A, Morelli S, Salerno S, Macchiarini P, De Bartolo L. Kinetics of oxygen uptake by cells potentially used in a tissue engineered trachea. Biomaterials 2014; 35:6829-37. [DOI: 10.1016/j.biomaterials.2014.04.100] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Accepted: 04/24/2014] [Indexed: 10/25/2022]
|
63
|
Cai J, Perfect E, Cheng CL, Hu X. Generalized modeling of spontaneous imbibition based on Hagen-Poiseuille flow in tortuous capillaries with variably shaped apertures. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:5142-5151. [PMID: 24785579 DOI: 10.1021/la5007204] [Citation(s) in RCA: 135] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Spontaneous imbibition of wetting liquids in porous media is a ubiquitous natural phenomenon which has received much attention in a wide variety of fields over several decades. Many traditional and recently presented capillary-driven flow models are derived based on Hagen-Poiseuille (H-P) flow in cylindrical capillaries. However, some limitations of these models have motivated modifications by taking into account different geometrical factors. In this work, a more generalized spontaneous imbibition model is developed by considering the different sizes and shapes of pores, the tortuosity of imbibition streamlines in random porous media, and the initial wetting-phase saturation. The interrelationships of accumulated imbibition weight, imbibition rate and gas recovery and the properties of the porous media, wetting liquids, and their interactions are derived analytically. A theoretical analysis and comparison denote that the presented equations can generalize several traditional and newly developed models from the literature. The proposed model was evaluated using previously published data for spontaneous imbibition measured in various natural and engineered materials including different rock types, fibrous materials, and silica glass. The test results show that the generalized model can be used to characterize the spontaneous imbibition behavior of many different porous media and that pore shape cannot always be assumed to be cylindrical.
Collapse
Affiliation(s)
- Jianchao Cai
- Institute of Geophysics and Geomatics, Key Laboratory of Tectonics and Petroleum Resources of Ministry of Education, China University of Geosciences , Wuhan 430074, PR China
| | | | | | | |
Collapse
|
64
|
Bouchet R, Phan TNT, Beaudoin E, Devaux D, Davidson P, Bertin D, Denoyel R. Charge Transport in Nanostructured PS–PEO–PS Triblock Copolymer Electrolytes. Macromolecules 2014. [DOI: 10.1021/ma500420w] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- R. Bouchet
- Laboratoire
d’Electrochimie et de Physico-chimie des Matériaux et
des Interfaces (LEPMI) UMR CNRS 5279, Grenoble Universités, 1130
rue de la piscine, 38402 St. Martin d’Hères, France
| | - T. N. T. Phan
- Institut
de Chimie Radicalaire - UMR 7273, Chimie Radicalaire Organique et
Polymères de Spécialité, Aix-Marseille Université, Campus Saint Jérôme, Case 542, 13397 Marseille, Cedex 20, France
| | - E. Beaudoin
- Institut
de Chimie Radicalaire - UMR 7273, Chimie Radicalaire Organique et
Polymères de Spécialité, Aix-Marseille Université, Campus Saint Jérôme, Case 542, 13397 Marseille, Cedex 20, France
- Laboratoire
de Physique des Solides, UMR 8502 CNRS, Université Paris-Sud, Bâtiment 510, 91405 Orsay, Cedex, France
| | - D. Devaux
- Institut
de Chimie Radicalaire - UMR 7273, Chimie Radicalaire Organique et
Polymères de Spécialité, Aix-Marseille Université, Campus Saint Jérôme, Case 542, 13397 Marseille, Cedex 20, France
- MADIREL
- UMR 7246, Matériaux divisés, interfaces, réactivité,
électrochimie, Aix-Marseille Université, Campus saint Jérôme,
Bât. MADIREL, 13397 Marseille, Cedex 20, France
| | - P. Davidson
- Laboratoire
de Physique des Solides, UMR 8502 CNRS, Université Paris-Sud, Bâtiment 510, 91405 Orsay, Cedex, France
| | - D. Bertin
- Institut
de Chimie Radicalaire - UMR 7273, Chimie Radicalaire Organique et
Polymères de Spécialité, Aix-Marseille Université, Campus Saint Jérôme, Case 542, 13397 Marseille, Cedex 20, France
| | - R. Denoyel
- MADIREL
- UMR 7246, Matériaux divisés, interfaces, réactivité,
électrochimie, Aix-Marseille Université, Campus saint Jérôme,
Bât. MADIREL, 13397 Marseille, Cedex 20, France
| |
Collapse
|
65
|
|
66
|
Wernert V, Bouchet R, Denoyel R. Impact of the solute exclusion on the bed longitudinal diffusion coefficient and particle intra-tortuosity determined by ISEC. J Chromatogr A 2014; 1325:179-85. [DOI: 10.1016/j.chroma.2013.12.029] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Revised: 12/05/2013] [Accepted: 12/06/2013] [Indexed: 10/25/2022]
|
67
|
Wiedenmann D, Keller L, Holzer L, Stojadinović J, Münch B, Suarez L, Fumey B, Hagendorfer H, Brönnimann R, Modregger P, Gorbar M, Vogt UF, Züttel A, Mantia FL, Wepf R, Grobéty B. Three-dimensional pore structure and ion conductivity of porous ceramic diaphragms. AIChE J 2013. [DOI: 10.1002/aic.14094] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Daniel Wiedenmann
- Dept. of Geosciences and FRIMAT; University of Fribourg; Chemin du Musée 6 Pérolles Fribourg CH-1700 Switzerland
| | - Lukas Keller
- EMPA, Swiss Federal Laboratories for Materials Testing and Research; Überlandstrasse 129 Dübendorf CH-8600 Switzerland
| | - Lorenz Holzer
- ZHAW, Institute of Computational Physics ICP, Zurich University of Applied Sciences; Wildbachstrasse 21 Winterthur CH-8400 Switzerland
| | - Jelena Stojadinović
- EMPA, Swiss Federal Laboratories for Materials Testing and Research; Überlandstrasse 129 Dübendorf CH-8600 Switzerland
| | - Beat Münch
- EMPA, Swiss Federal Laboratories for Materials Testing and Research; Überlandstrasse 129 Dübendorf CH-8600 Switzerland
| | - Laura Suarez
- EMPA, Swiss Federal Laboratories for Materials Testing and Research; Überlandstrasse 129 Dübendorf CH-8600 Switzerland
| | - Benjamin Fumey
- EMPA, Swiss Federal Laboratories for Materials Testing and Research; Überlandstrasse 129 Dübendorf CH-8600 Switzerland
| | - Harald Hagendorfer
- EMPA, Swiss Federal Laboratories for Materials Testing and Research; Überlandstrasse 129 Dübendorf CH-8600 Switzerland
| | - Rolf Brönnimann
- EMPA, Swiss Federal Laboratories for Materials Testing and Research; Überlandstrasse 129 Dübendorf CH-8600 Switzerland
| | - Peter Modregger
- Swiss Light Source, Paul Scherrer Institut; Villigen CH-5232 Switzerland
- School of Biology and Medicine, University of Lausanne; Lausanne CH-1015 Switzerland
| | - Michal Gorbar
- EMPA, Swiss Federal Laboratories for Materials Testing and Research; Überlandstrasse 129 Dübendorf CH-8600 Switzerland
| | - Ulrich F. Vogt
- EMPA, Swiss Federal Laboratories for Materials Testing and Research; Überlandstrasse 129 Dübendorf CH-8600 Switzerland
| | - Andreas Züttel
- EMPA, Swiss Federal Laboratories for Materials Testing and Research; Überlandstrasse 129 Dübendorf CH-8600 Switzerland
| | - Fabio La Mantia
- CES, Center for Electrochemical Sciences, Ruhr-University Bochum, Universitätsstrasse 150; Bochum D-44780 Germany
| | - Roger Wepf
- ETH, Swiss Federal Institute of Technology Zurich, Electron Microscopy Centre EMEZ; Wolfgang-Pauli-Str. 16 Zurich CH-8093 Switzerland
| | - Bernard Grobéty
- Dept. of Geosciences and FRIMAT; University of Fribourg; Chemin du Musée 6 Pérolles Fribourg CH-1700 Switzerland
| |
Collapse
|
68
|
Besselink T, van der Padt A, Janssen AE, Boom RM. Are axial and radial flow chromatography different? J Chromatogr A 2013; 1271:105-14. [DOI: 10.1016/j.chroma.2012.11.027] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2012] [Revised: 11/10/2012] [Accepted: 11/12/2012] [Indexed: 11/29/2022]
|
69
|
Coasne B, Galarneau A, Pellenq RJM, Di Renzo F. Adsorption, intrusion and freezing in porous silica: the view from the nanoscale. Chem Soc Rev 2013; 42:4141-71. [PMID: 23348418 DOI: 10.1039/c2cs35384a] [Citation(s) in RCA: 115] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Benoit Coasne
- Institut Charles Gerhardt Montpellier, CNRS (UMR 5253), University Montpellier 2, ENSCM, 8 rue de l'Ecole Normale, 34296 Montpellier, France.
| | | | | | | |
Collapse
|
70
|
Dependency of Tortuosity and Permeability of Porous Media on Directional Distribution of Pore Voids. Transp Porous Media 2012. [DOI: 10.1007/s11242-012-0043-8] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
71
|
Medina-Gonzalez Y, Lasseuguette E, Rouch JC, Remigy JC. Improving PVDF Hollow Fiber Membranes for CO2Gas Capture. SEP SCI TECHNOL 2012. [DOI: 10.1080/01496395.2012.658942] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
72
|
Sobieski W, Zhang Q, Liu C. Predicting Tortuosity for Airflow Through Porous Beds Consisting of Randomly Packed Spherical Particles. Transp Porous Media 2012. [DOI: 10.1007/s11242-012-9961-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
73
|
Nemati Hayati A, Ahmadi MM, Mohammadi S. How particle shape affects the flow through granular materials. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2012; 85:036310. [PMID: 22587183 DOI: 10.1103/physreve.85.036310] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2011] [Indexed: 05/31/2023]
Abstract
Flow through the pores of granular materials has many instances in practice. Therefore, it is interesting to realize how some parameters, such as the shape of the particles affect the passing flow. Following the recent mathematical theory proposed by the authors, this paper deals with the issue of how tortuosity and permeability are influenced by the particle shape. Comparison of the results with the experimental data reveals the competency of the theory in predicting the impact of particle geometry.
Collapse
Affiliation(s)
- Ali Nemati Hayati
- Department of Civil Engineering, Sharif University of Technology, Tehran, Iran
| | | | | |
Collapse
|
74
|
Guy Y, Faraji AH, Gavigan CA, Strein TG, Weber SG. Iontophoresis from a micropipet into a porous medium depends on the ζ-potential of the medium. Anal Chem 2012; 84:2179-87. [PMID: 22264102 DOI: 10.1021/ac202434c] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Iontophoresis uses electricity to deliver solutes into living tissue. Often, iontophoretic ejections from micropipets into brain tissue are confined to millisecond pulses for highly localized delivery, but longer pulses are common. As hippocampal tissue has a ζ-potential of approximately -22 mV, we hypothesized that, in the presence of the electric field resulting from the iontophoretic current, electroosmotic flow in the tissue would carry solutes considerably farther than diffusion alone. A steady state solution to this mass transport problem predicts a spherically symmetrical solute concentration profile with the characteristic distance of the profile depending on the ζ-potential of the medium, the current density at the tip, the tip size, and the solute electrophoretic mobility and diffusion coefficient. Of course, the ζ-potential of the tissue is defined by immobilized components of the extracellular matrix as well as cell-surface functional groups. As such, it cannot be changed at will. Therefore, the effect of the ζ-potential of the porous medium on ejections is examined using poly(acrylamide-co-acrylic acid) hydrogels with various magnitudes of ζ-potential, including that similar to hippocampal brain tissue. We demonstrated that nearly neutral fluorescent dextran (3 and 70 kD) solute penetration distance in the hydrogels and OHSCs depends on the magnitude of the applied current, solute properties, and, in the case of the hydrogels, the ζ-potential of the matrix. Steady state solute ejection profiles in gels and cultures of hippocampus can be predicted semiquantitatively.
Collapse
Affiliation(s)
- Yifat Guy
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
| | | | | | | | | |
Collapse
|
75
|
Deridder S, Desmet G. Calculation of the geometrical three-point parameter constant appearing in the second order accurate effective medium theory expression for the B-term diffusion coefficient in fully porous and porous-shell random sphere packings. J Chromatogr A 2012; 1223:35-40. [DOI: 10.1016/j.chroma.2011.12.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2011] [Revised: 11/23/2011] [Accepted: 12/01/2011] [Indexed: 11/17/2022]
|
76
|
Structure–transport correlation for the diffusive tortuosity of bulk, monodisperse, random sphere packings. J Chromatogr A 2011; 1218:6489-97. [DOI: 10.1016/j.chroma.2011.07.066] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2011] [Revised: 07/11/2011] [Accepted: 07/12/2011] [Indexed: 11/17/2022]
|
77
|
Experimental investigation of the difference in B-term dominated band broadening between fully porous and porous-shell particles for liquid chromatography using the Effective Medium Theory. J Chromatogr A 2011; 1218:4406-16. [DOI: 10.1016/j.chroma.2011.05.018] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2010] [Revised: 03/04/2011] [Accepted: 05/09/2011] [Indexed: 11/18/2022]
|
78
|
Daneyko A, Höltzel A, Khirevich S, Tallarek U. Influence of the Particle Size Distribution on Hydraulic Permeability and Eddy Dispersion in Bulk Packings. Anal Chem 2011; 83:3903-10. [DOI: 10.1021/ac200424p] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Anton Daneyko
- Department of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Strasse, 35032 Marburg, Germany
| | - Alexandra Höltzel
- Department of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Strasse, 35032 Marburg, Germany
| | - Siarhei Khirevich
- Department of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Strasse, 35032 Marburg, Germany
| | - Ulrich Tallarek
- Department of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Strasse, 35032 Marburg, Germany
| |
Collapse
|
79
|
Ahmadi MM, Mohammadi S, Hayati AN. Analytical derivation of tortuosity and permeability of monosized spheres: a volume averaging approach. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2011; 83:026312. [PMID: 21405911 DOI: 10.1103/physreve.83.026312] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2010] [Revised: 10/07/2010] [Indexed: 05/30/2023]
Abstract
Macroscopic properties of granular materials are important in modeling a variety of flow and transport phenomena in many fields of science. Determination of these parameters has always been an issue among both researchers and engineers, mainly in view of tortuosity and permeability. This paper presents analytical functions for the tortuosity and permeability of monosized sphere arrays based on a volume averaging approach and eliminates some ambiguities by modification of the original representative elementary volume model. Veracity of the proposed formulations has been illustrated through comparisons with the latest available results on the subject. Good agreement is found.
Collapse
|
80
|
Deridder S, Desmet G. Effective medium theory expressions for the effective diffusion in chromatographic beds filled with porous, non-porous and porous-shell particles and cylinders. Part II: Numerical verification and quantitative effect of solid core on expected B-term band broadening. J Chromatogr A 2011; 1218:46-56. [DOI: 10.1016/j.chroma.2010.10.086] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2010] [Revised: 10/05/2010] [Accepted: 10/25/2010] [Indexed: 11/17/2022]
|
81
|
Desmet G, Deridder S. Effective medium theory expressions for the effective diffusion in chromatographic beds filled with porous, non-porous and porous-shell particles and cylinders. Part I: Theory. J Chromatogr A 2011; 1218:32-45. [DOI: 10.1016/j.chroma.2010.10.087] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2010] [Revised: 10/05/2010] [Accepted: 10/25/2010] [Indexed: 10/18/2022]
|
82
|
Lanfrey PY, Kuzeljevic Z, Dudukovic M. Tortuosity model for fixed beds randomly packed with identical particles. Chem Eng Sci 2010. [DOI: 10.1016/j.ces.2009.11.011] [Citation(s) in RCA: 103] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
83
|
Wernert V, Bouchet R, Denoyel R. Influence of Molecule Size on Its Transport Properties through a Porous Medium. Anal Chem 2010; 82:2668-79. [DOI: 10.1021/ac902858b] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Véronique Wernert
- Universités d’Aix-Marseille I, II et III-CNRS, UMR 6264, Laboratoire Chimie Provence, Equipe Matdiv, Centre Saint Jérôme, F-13397 Marseille Cedex 20, France
| | - Renaud Bouchet
- Universités d’Aix-Marseille I, II et III-CNRS, UMR 6264, Laboratoire Chimie Provence, Equipe Matdiv, Centre Saint Jérôme, F-13397 Marseille Cedex 20, France
| | - Renaud Denoyel
- Universités d’Aix-Marseille I, II et III-CNRS, UMR 6264, Laboratoire Chimie Provence, Equipe Matdiv, Centre Saint Jérôme, F-13397 Marseille Cedex 20, France
| |
Collapse
|
84
|
On the enantioselectivity of the mass transfer kinetics and the adsorption equilibrium of Naproxen on the chiral stationary phase ()-Whelk-O1 under reversed-phase conditions. J Chromatogr A 2010; 1217:1320-31. [DOI: 10.1016/j.chroma.2009.12.066] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2009] [Revised: 12/16/2009] [Accepted: 12/21/2009] [Indexed: 11/18/2022]
|
85
|
Asnin LD, Kachmarski K, Fedorov AA, Chekryshkin YS. Description of the dynamics of vapor adsorption in a fixed bed of an adsorbent using various approximations of the mixed-diffusion model. THEORETICAL FOUNDATIONS OF CHEMICAL ENGINEERING 2009. [DOI: 10.1134/s004057950903004x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
86
|
Tatárová I, Fáber R, Denoyel R, Polakovic M. Characterization of pore structure of a strong anion-exchange membrane adsorbent under different buffer and salt concentration conditions. J Chromatogr A 2008; 1216:941-7. [PMID: 19117574 DOI: 10.1016/j.chroma.2008.12.018] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2008] [Revised: 12/03/2008] [Accepted: 12/05/2008] [Indexed: 12/01/2022]
Abstract
The quantitative characterization of pore structure of Sartobind Q, a strongly basic membrane anion exchanger that is formed by cross-linked cellulose support and a hydrogel layer on its pore surface, was made combining the results obtained by several experimental techniques: liquid impregnation, batch size-exclusion, inverse size-exclusion chromatography, and permeability. Mercury intrusion and nitrogen sorption porosimetry were carried out for a dry cellulose support membrane in order to get additional information for building a model of the bimodal pore structure. The model incorporated the distribution of the total pore volume between transport and gel-layer pores and the partitioning of solutes of different molecular weights was expressed through the cylindrical pore model for the transport pores and random plane model for the gel layer. The effect of composition of liquid phase on the pore structure was investigated in redistilled water, phosphate and Tris-HCl buffers containing up to 1M NaCl. Evident differences in the bimodal pore structure were observed here when both the specific volume and size of the hydrogel layer pores significantly decreased with the ionic strength of liquid phase.
Collapse
Affiliation(s)
- Ivana Tatárová
- Department of Chemical and Biochemical Engineering, Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, SK-812 37 Bratislava, Slovakia
| | | | | | | |
Collapse
|
87
|
Matyka M, Khalili A, Koza Z. Tortuosity-porosity relation in porous media flow. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2008; 78:026306. [PMID: 18850935 DOI: 10.1103/physreve.78.026306] [Citation(s) in RCA: 112] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2008] [Revised: 06/17/2008] [Indexed: 05/26/2023]
Abstract
We study numerically the tortuosity-porosity relation in a microscopic model of a porous medium arranged as a collection of freely overlapping squares. It is demonstrated that the finite-size, slow relaxation and discretization errors, which were ignored in previous studies, may cause significant underestimation of tortuosity. The simple tortuosity calculation method proposed here eliminates the need for using complicated, weighted averages. The numerical results presented here are in good agreement with an empirical relation between tortuosity (T) and porosity (varphi) given by T-1 proportional, variantlnvarphi , that was found by others experimentally in granule packings and sediments. This relation can be also written as T-1 proportional, variantRSvarphi with R and S denoting the hydraulic radius of granules and the specific surface area, respectively. Applicability of these relations appears to be restricted to porous systems of randomly distributed obstacles of equal shape and size.
Collapse
Affiliation(s)
- Maciej Matyka
- Institute of Theoretical Physics, University of Wrocław, pl. M. Borna 9, 50-204 Wrocław, Poland
| | | | | |
Collapse
|
88
|
Broeckhoven K, Cabooter D, Lynen F, Sandra P, Desmet G. Errors involved in the existing B-term expressions for the longitudinal diffusion in fully porous chromatographic media. J Chromatogr A 2008; 1188:189-98. [DOI: 10.1016/j.chroma.2008.02.058] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2007] [Revised: 02/13/2008] [Accepted: 02/15/2008] [Indexed: 11/28/2022]
|
89
|
Desmet G, Broeckhoven K, De Smet J, Deridder S, Baron G, Gzil P. Errors involved in the existing B-term expressions for the longitudinal diffusion in fully porous chromatographic media. J Chromatogr A 2008; 1188:171-88. [DOI: 10.1016/j.chroma.2008.02.018] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2007] [Revised: 01/22/2008] [Accepted: 02/07/2008] [Indexed: 10/22/2022]
|