2005
DOI: 10.1002/aic.10335
|View full text |Cite
|
Sign up to set email alerts
|

Multiscale models of sweep gas and porous support effects on zeolite membranes

Abstract: Existing detailed models of gas permeation through zeolite membranes have focused on

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1
1
1

Citation Types

1
32
0

Year Published

2005
2005
2024
2024

Publication Types

Select...
6
1

Relationship

0
7

Authors

Journals

citations
Cited by 28 publications
(33 citation statements)
references
References 54 publications
1
32
0
Order By: Relevance
“…Also, the support typically slows the components that diffuse faster in the zeolite layer more than the slower-diffusing components, and thereby lowers selectivity [8]. Indeed, when the support resistance controls transport, the membrane can be non-selective [9].…”
Section: Introductionmentioning
confidence: 97%
“…Also, the support typically slows the components that diffuse faster in the zeolite layer more than the slower-diffusing components, and thereby lowers selectivity [8]. Indeed, when the support resistance controls transport, the membrane can be non-selective [9].…”
Section: Introductionmentioning
confidence: 97%
“…144,145 Other forms of the isotherm e.g. Toth, Langmuir-Sip, Langmuir-Freundlich have also been used.…”
Section: Adsorptionmentioning
confidence: 99%
“…The models proposed in the literature are well established and incorporate flux through the Knudsen and bulk diffusion and viscous flow. 144,193,194 The sweep gas is introduced to carry away the species on the permeate side and thus increase the driving force for permeation. In most of the modeling studies, the effect of sweep gas is incorporated by assuming zero partial pressure of the species on the permeate side.…”
Section: Other Factorsmentioning
confidence: 99%
“…This is to be expected as the diffusivity of each species in the on the feed/retentate and permeate sides of the membrane in the source and sink regions is far greater than that through the membrane and the highly mobile H 2 quickly replenishes any changes in concentration that have occurred due to selective diffusion through the membrane. Other researchers [26], when considering flow through membranes, have used the assumption that the gas phase on both sides of the membrane is well mixed. This would be supported in cases, such as the one presented here where rate of diffusion of gas through gas is greater than that of gas through the membrane.…”
Section: Figurementioning
confidence: 99%