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Characterization of copper supported on titanosilicates for room temperature H2S adsorption Open Access
- Other title
- Type of item
- Degree grantor
University of Alberta
- Author or creator
- Supervisor and department
Kuznicki,Steven M. (Chemical and Materials Engineering)
- Examining committee member and department
Hashisho, Zaher (Civil and Environmental Engineering)
Dechaine, Greg (Chemical and Materials Engineering)
Department of Chemical and Materials Engineering
- Date accepted
- Graduation date
Master of Science
- Degree level
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.
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