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The evaluation of a reductive pyrolysis reactor for the destruction of CFC-12, and the production of HCN
Thesis (MSc) -- University of Stellenbosch, 1996.
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| Format: | Thesis |
| Language: | English |
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Stellenbosch : Stellenbosch University
2012
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| _version_ | 1867614018474082304 |
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| access_status_str | Open Access |
| author | Faul, Charles Frederick James |
| author2 | Engelbrecht, W. J. |
| author_browse | Engelbrecht, W. J. Faul, Charles Frederick James |
| author_facet | Engelbrecht, W. J. Faul, Charles Frederick James |
| author_sort | Faul, Charles Frederick James |
| collection | Thesis |
| dc_rights_str_mv | Stellenbosch University |
| description | Thesis (MSc) -- University of Stellenbosch, 1996. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/55270 |
| institution | Stellenbosch University (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:45:21.489Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2012 |
| publishDateRange | 2012 |
| publishDateSort | 2012 |
| publisher | Stellenbosch : Stellenbosch University |
| publisherStr | Stellenbosch : Stellenbosch University |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/55270 The evaluation of a reductive pyrolysis reactor for the destruction of CFC-12, and the production of HCN Faul, Charles Frederick James Engelbrecht, W. J. Stellenbosch University. Faculty of Science. Dept. of Chemistry and Polymer Science. Chlorofluorocarbons Pyrolysis Thermal analysis Cyanides Dissertations -- Chemistry Thesis (MSc) -- University of Stellenbosch, 1996. The depletion of stratospheric ozone focused the world’s attention on various environmental issues, more specifically on CFC’s (chlorofluorocarbons) in the environment. With the introduction of the Montreal Protocol and consequent phase-out of CFC’s in industries, an opportunity was created for the development of technologies to destroy CFC’s. A reductive pyrolysis unit was developed at the University of Stellenbosch in collaboration with Eskom TRI. This unit was used to investigate the destruction of chlorinated hydrocarbons, concentrating on the destruction of PCB’s (polychlorinated biphenyls). The existing unit was modified and used to investigate the destruction of CFC-12 (CF₂Cl₂) over a range of temperatures from 1100 °C to 2300 °C under reductive conditions. GC/MS analyses of hexane extracts of the carbon product and gas samples showed that no chlorinated/halogenated compounds were present. HCN is of the utmost importance to the South African mining industry, and a demand exists for HCN production at lower cost. The existing reductive pyrolysis unit was therefore adapted for the production of HCN. A number of tests were performed to investigate the feasibility of this process. These tests proved to be successful and prompted the design, manufacturing and commissioning of a pilot plant at a mine site in the Rand area of Gauteng. Masters 2012-08-27T11:36:58Z 2012-08-27T11:36:58Z 1996 Thesis http://hdl.handle.net/10019.1/55270 en Stellenbosch University 212 pages : ill. application/pdf Stellenbosch : Stellenbosch University |
| spellingShingle | Chlorofluorocarbons Pyrolysis Thermal analysis Cyanides Dissertations -- Chemistry Faul, Charles Frederick James The evaluation of a reductive pyrolysis reactor for the destruction of CFC-12, and the production of HCN |
| title | The evaluation of a reductive pyrolysis reactor for the destruction of CFC-12, and the production of HCN |
| title_full | The evaluation of a reductive pyrolysis reactor for the destruction of CFC-12, and the production of HCN |
| title_fullStr | The evaluation of a reductive pyrolysis reactor for the destruction of CFC-12, and the production of HCN |
| title_full_unstemmed | The evaluation of a reductive pyrolysis reactor for the destruction of CFC-12, and the production of HCN |
| title_short | The evaluation of a reductive pyrolysis reactor for the destruction of CFC-12, and the production of HCN |
| title_sort | evaluation of a reductive pyrolysis reactor for the destruction of cfc 12 and the production of hcn |
| topic | Chlorofluorocarbons Pyrolysis Thermal analysis Cyanides Dissertations -- Chemistry |
| url | http://hdl.handle.net/10019.1/55270 |
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