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The effect of metal type and loading on n-paraffin hydrocracking conversion and selectivity
Includes bibliographical references.
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| Main Author: | |
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
| Published: |
Department of Chemical Engineering
2014
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| _version_ | 1867614299636105216 |
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| access_status_str | Open Access |
| author | Wynne, Peter DT |
| author2 | Böhringer, Walter |
| author_browse | Böhringer, Walter Wynne, Peter DT |
| author_facet | Böhringer, Walter Wynne, Peter DT |
| author_sort | Wynne, Peter DT |
| collection | Thesis |
| description | Includes bibliographical references. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/8702 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:49:50.516Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2014 |
| publishDateRange | 2014 |
| publishDateSort | 2014 |
| 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:11427/8702 The effect of metal type and loading on n-paraffin hydrocracking conversion and selectivity Wynne, Peter DT Böhringer, Walter Fletcher, Jack Includes bibliographical references. With the continued decline in global oil reserves, there is a growing need to develop alternative sources of conventional fuels to complement the current dependence on crude oil feedstocks. Natural gas, coal and biomass have been identified for this purpose. The distinctive advantage of using natural (stranded) gas is that it is turned into a useful product, thereby increasing its value and reducing the environmental impact of simply flaring it. The value-added work up of natural gas is effected by Gas-to-Liquid conversion via the Fischer-Tropsch Synthesis. Long-chain hydrocarbon waxes are produced and these are subsequently hydrocracked into the required middle distillate fuels, preferably diesel, as diesel engines are more efficient than their petrol counterparts. Hydrocracking may be carried out using a bifunctional catalyst, consisting of metal and acid components. Industrially, hydrocracking is used to crack heavy crude oil fractions into the desired fuel range, however, the catalysts used are sulphided transition metals. These are less suitable for cracking Fischer-Tropsch waxes as they would introduce sulphur into a clean feedstock. Moreover, at reaction temperatures of around 250°C, transition metal sulphide catalysts display little activity. Thus, one may consider noble metals such as palladium or platinum, whilst shape selective zeolites may be used as the acid component. 2014-10-21T13:46:50Z 2014-10-21T13:46:50Z 2014 Master Thesis Masters MSc http://hdl.handle.net/11427/8702 eng application/pdf Department of Chemical Engineering Faculty of Engineering and the Built Environment University of Cape Town |
| spellingShingle | Wynne, Peter DT The effect of metal type and loading on n-paraffin hydrocracking conversion and selectivity |
| thesis_degree_str | Master's |
| title | The effect of metal type and loading on n-paraffin hydrocracking conversion and selectivity |
| title_full | The effect of metal type and loading on n-paraffin hydrocracking conversion and selectivity |
| title_fullStr | The effect of metal type and loading on n-paraffin hydrocracking conversion and selectivity |
| title_full_unstemmed | The effect of metal type and loading on n-paraffin hydrocracking conversion and selectivity |
| title_short | The effect of metal type and loading on n-paraffin hydrocracking conversion and selectivity |
| title_sort | effect of metal type and loading on n paraffin hydrocracking conversion and selectivity |
| url | http://hdl.handle.net/11427/8702 |
| work_keys_str_mv | AT wynnepeterdt theeffectofmetaltypeandloadingonnparaffinhydrocrackingconversionandselectivity AT wynnepeterdt effectofmetaltypeandloadingonnparaffinhydrocrackingconversionandselectivity |