Characterization of copper supported on titanosilicates for room temperature H2S adsorption

• Author / Creator

  Tavana, Aida

• Hydrogen sulfide (H2S) is a major contaminant of industrial gas streams.
  Amongst the various methods used for its removal, adsorption by metal oxides is
  the most promising. Copper oxide (CuO) is shown to have superior H2S removal
  capability at room temperature. H2S removal at room temperature is useful when
  the gas stream’s temperature is low and in applications such as on-board fuel
  processing of proton exchange membrane fuel cells.
  The addition of supports improves the adsorption capacity and utilization of
  copper species. In this study, Engelhard titanosilicates (ETS-2, ETS-4 and ETS-
  10) were chosen as supports due to their high surface area and ion-exchange
  capacities. Copper species were dispersed on the supports via ion-exchange.
  
  The H2S adsorption potential of Cu-ETS-2, Cu-ETS-4 and Cu-ETS-10 versus
  commercial H2S scrubbers was investigated. Cu-ETS-2 was found to be the most effective adsorbent at room temperature due to its high external surface area and high dispersion of copper species.

• Subjects / Keywords

  • Copper
  • Titanosilicate
  • Adsorption
  • Room temperature
  • Hydrogen sulfide

• Graduation date

  Spring 2012

• Type of Item

  Thesis

• Degree

  Master of Science

• DOI

  https://doi.org/10.7939/R33Q7P

• License

  This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for non-commercial purposes. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.