Download the full-sized PDF of Gas Separation Membranes Using Cementitious-Zeolite CompositeDownload the full-sized PDF



Permanent link (DOI):


Export to: EndNote  |  Zotero  |  Mendeley


This file is in the following communities:

Graduate Studies and Research, Faculty of


This file is in the following collections:

Theses and Dissertations

Gas Separation Membranes Using Cementitious-Zeolite Composite Open Access


Other title
gas separation
natural zeolite
Type of item
Degree grantor
University of Alberta
Author or creator
Shafie, Amir Hossein
Supervisor and department
Kuznicki, Steven M. (Chemical and Materials Engineering)
Examining committee member and department
Lubell, Adam (Civil and Environmental Engineering)
Dechaine, Greg (Chemical and Materials Engineering)
Unsworth, Larry D. (Chemical and Materials Engineering)
Department of Chemical and Materials Engineering

Date accepted
Graduation date
Master of Science
Degree level
Natural zeolite-based membranes have recently shown promise in the separation of H2 from CO2 and hydrocarbons. However, these highly dense, naturally monolithic materials can suffer defects which disrupt the continuity of the zeolite micropores and create leak paths through the membrane. Cement materials were explored as a component to generate mixed-matrix zeolite membranes. The ability for cement to intergrow between the zeolite particles promised to, under proper conditions, provide a smooth non-boundary interface with the zeolite particles and eliminate interparticle voids. The influence of zeolite contents in the composite membranes, operating pressures and temperatures on the performance of the membranes were examined. Gas permeation results show a hydrogen permeance of 4.1 × 10-8 mol.m-2.s-1.Pa-1 a CO2 permeance of 1.6 × 10-9 mol.m-2.s-1.Pa-1 and a H2/CO2 single gas selectivity of 25 were obtained at 25oC and 1 atm. The gas permeance through the clinoptilolite cement composite membrane was dependent on operating temperature, indicating that the permeation through the membrane was an activated diffusion process and that the permeation through the zeolite embedded in the composite membrane was predominant. However, the increase of gas permeation and the corresponding decrease of H2/CO2 selectivity with increasing total pressure are an indication of some defects in the composite membranes. Further research to optimize the membrane preparation conditions and to modify the membrane surface to improve hydrogen permeation and H2/CO2 selectivity is needed.
License granted by Amir Hossein Shafie ( on 2011-11-04T20:26:10Z (GMT): Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of the above terms. The author reserves all other publication and other rights in association with the copyright in the thesis, and except as herein provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
Citation for previous publication

File Details

Date Uploaded
Date Modified
Audit Status
Audits have not yet been run on this file.
File format: pdf (Portable Document Format)
Mime type: application/pdf
File size: 2010478
Last modified: 2015:10:12 19:44:57-06:00
Filename: Shafie_Amirhossein_Spring 2012.pdf
Original checksum: ac8de0bcb7765a9932d81036e4dcc5b2
Well formed: true
Valid: true
Page count: 68
Activity of users you follow
User Activity Date