• norsk
    • English
  • English 
    • norsk
    • English
  • Login
View Item 
  •   Home
  • Fakultet for naturvitenskap (NV)
  • Institutt for kjemi
  • View Item
  •   Home
  • Fakultet for naturvitenskap (NV)
  • Institutt for kjemi
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Permeation and Mechanical Properties of Porous Supports Intended for Asymmetric Membranes Based on La(0.2)Sr(0.8)Fe(0.8)Al(0.2)O(3-δ)

Lagergren, Dan Stræte
Master thesis
Thumbnail
View/Open
616132_FULLTEXT01.pdf (39.88Mb)
616132_COVER01.pdf (320.9Kb)
URI
http://hdl.handle.net/11250/247827
Date
2012
Metadata
Show full item record
Collections
  • Institutt for kjemi [1040]
Abstract
Production of asymmetric ceramic membranes intended for oxygen gas separation was done by producing porous supports made from coarse La(0.2)Sr(0.8)Fe(0.8)Al(0.2)O(3-d) powder produced by the solid state reaction method. The porous support was made by adding 40 vol% carbon black as a pore former to a slip which was tape casted. The tape casted green body was dip-coated with a solution of nano-sized La(0.2)Sr(0.8)Fe(0.8)Al(0.2)O(3-d) particles produced by spray pyrolysis, and fired. The asymmetric membranes produced during this work was not gas tight, and thus not viable to use for oxygen gas separation. Phase pure La(0.2)Sr(0.8)Fe(0.8)Al(0.2)O(3-d) was not prepared by the solid state reaction method in this work, and possible reasons for this is discussed. The gas permeability of the porous support was measured at room temperature. The gas permeability at elevated temperatures was calculated for different pressure drops across the porous support and the estimated gas permeability at elevated temperatures seems promising (58 mL/min cm2 at 1000C, p = 10mbar). The porosity of the porous support was determined to 62.3% by Archimedes method, this seems plausible when comparing the results with SEM micrographs. Due to time restraints no mechanical testing was done
Publisher
Institutt for materialteknologi

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit
 

 

Browse

ArchiveCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsDocument TypesJournalsThis CollectionBy Issue DateAuthorsTitlesSubjectsDocument TypesJournals

My Account

Login

Statistics

View Usage Statistics

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit