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The use of coherent anti-Stokes Raman Spectroscopy as a diagnostic technique for studying the hydrogenation of carbon moxide in a tube-wall reactor
The methanation reaction, discovered in 1902 by Sabatier and Senderens, still remains a subject of intense interest. It is currently used in numerous industrial processes to remove carbon monoxide traces in hydrogen-rich gases of ammonia plants. Since the early 1980's there has been a renewed intere...
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| Format: | Thesis |
| Language: | English English |
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Department of Chemical Engineering
2026
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| _version_ | 1867613289596321792 |
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| access_status_str | Open Access |
| author | Simon, Russell James |
| author_browse | Simon, Russell James |
| author_facet | Simon, Russell James |
| author_sort | Simon, Russell James |
| collection | Thesis |
| description | The methanation reaction, discovered in 1902 by Sabatier and Senderens, still remains a subject of intense interest. It is currently used in numerous industrial processes to remove carbon monoxide traces in hydrogen-rich gases of ammonia plants. Since the early 1980's there has been a renewed interest in especially catalytic methanation as it is an important step in the transformation of coal into substitute natural gas - an industrial process that is becoming more attractive to coal~rich developing countries. Current reactors are of the fixed bed type, but there is an interest in using tube-wall reactors in order to reduce the large pressure drops normally associated with fixed bed reactors. Coherent Anti-Stokes Raman Spectroscopy (CARS) is a relatively new laser-based spectroscopic technique which may be used to obtain the concentrations of species in the gas phase. The aim of this work was to study the methanation reaction over various supported metal catalysts in a simple tube-wall flow reactor using CARS. The metals, nickel,cobalt and ruthenium were used to catalyse the methanation reaction. These were loaded onto various amorphous and zeolitic supports using typical ion exchange and incipient wetness techniques. The metal loading of the catalysts were determined by atomic adsorption analysis. Typically, the metal loadings were 7% and 0.5% by mass. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/42920 |
| institution | University of Cape Town (South Africa) |
| language | English eng |
| last_indexed | 2026-06-10T12:33:45.686Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2026 |
| publishDateRange | 2026 |
| publishDateSort | 2026 |
| publisher | Department of Chemical Engineering |
| publisherStr | Department of Chemical Engineering |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/42920 The use of coherent anti-Stokes Raman Spectroscopy as a diagnostic technique for studying the hydrogenation of carbon moxide in a tube-wall reactor Simon, Russell James Raman spectroscopy The methanation reaction, discovered in 1902 by Sabatier and Senderens, still remains a subject of intense interest. It is currently used in numerous industrial processes to remove carbon monoxide traces in hydrogen-rich gases of ammonia plants. Since the early 1980's there has been a renewed interest in especially catalytic methanation as it is an important step in the transformation of coal into substitute natural gas - an industrial process that is becoming more attractive to coal~rich developing countries. Current reactors are of the fixed bed type, but there is an interest in using tube-wall reactors in order to reduce the large pressure drops normally associated with fixed bed reactors. Coherent Anti-Stokes Raman Spectroscopy (CARS) is a relatively new laser-based spectroscopic technique which may be used to obtain the concentrations of species in the gas phase. The aim of this work was to study the methanation reaction over various supported metal catalysts in a simple tube-wall flow reactor using CARS. The metals, nickel,cobalt and ruthenium were used to catalyse the methanation reaction. These were loaded onto various amorphous and zeolitic supports using typical ion exchange and incipient wetness techniques. The metal loading of the catalysts were determined by atomic adsorption analysis. Typically, the metal loadings were 7% and 0.5% by mass. 2026-02-27T06:43:15Z 2026-02-27T06:43:15Z 1989 2024-07-19T13:12:11Z Thesis / Dissertation Masters MSc http://hdl.handle.net/11427/42920 en eng application/pdf Department of Chemical Engineering Faculty of Engineering and the Built Environment University of Cape Town |
| spellingShingle | Raman spectroscopy Simon, Russell James The use of coherent anti-Stokes Raman Spectroscopy as a diagnostic technique for studying the hydrogenation of carbon moxide in a tube-wall reactor |
| thesis_degree_str | Master's |
| title | The use of coherent anti-Stokes Raman Spectroscopy as a diagnostic technique for studying the hydrogenation of carbon moxide in a tube-wall reactor |
| title_full | The use of coherent anti-Stokes Raman Spectroscopy as a diagnostic technique for studying the hydrogenation of carbon moxide in a tube-wall reactor |
| title_fullStr | The use of coherent anti-Stokes Raman Spectroscopy as a diagnostic technique for studying the hydrogenation of carbon moxide in a tube-wall reactor |
| title_full_unstemmed | The use of coherent anti-Stokes Raman Spectroscopy as a diagnostic technique for studying the hydrogenation of carbon moxide in a tube-wall reactor |
| title_short | The use of coherent anti-Stokes Raman Spectroscopy as a diagnostic technique for studying the hydrogenation of carbon moxide in a tube-wall reactor |
| title_sort | use of coherent anti stokes raman spectroscopy as a diagnostic technique for studying the hydrogenation of carbon moxide in a tube wall reactor |
| topic | Raman spectroscopy |
| url | http://hdl.handle.net/11427/42920 |
| work_keys_str_mv | AT simonrusselljames theuseofcoherentantistokesramanspectroscopyasadiagnostictechniqueforstudyingthehydrogenationofcarbonmoxideinatubewallreactor AT simonrusselljames useofcoherentantistokesramanspectroscopyasadiagnostictechniqueforstudyingthehydrogenationofcarbonmoxideinatubewallreactor |