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Synthesis of a manganese oxide catalyst for reduction of domestic fuel burning emissions
Mini Dissertation (MSc (Environmental Management))--University of Pretoria, 2022.
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| Format: | Thesis |
| Language: | English |
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University of Pretoria
2023
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| _version_ | 1867613680908107776 |
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| access_status_str | Open Access |
| author2 | Forbes, Patricia B.C. |
| author_browse | Forbes, Patricia B.C. |
| author_facet | Forbes, Patricia B.C. |
| collection | Thesis |
| dc_rights_str_mv | © 2022 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
| description | Mini Dissertation (MSc (Environmental Management))--University of Pretoria, 2022. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/90347 |
| institution | University of Pretoria (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:40:00.333Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/90347 Synthesis of a manganese oxide catalyst for reduction of domestic fuel burning emissions Forbes, Patricia B.C. marilizeg@gmail.com Steyn, Marilize UCTD House air pollution Manganese oxide catalyst Domestic fuel burning Catalytic oxidation South Africa Mini Dissertation (MSc (Environmental Management))--University of Pretoria, 2022. The negative health and socio-economic impacts of emissions associated with domestic fuel burning are widely recognized. Although there has been much progress in the provision of electricity to households in South Africa, many still rely on solid fuel sources such as wood and coal. While various investigations have been done on reducing household emissions by reducing the use of polluting fuels and improvements in combustion efficiency, comparatively fewer studies have been conducted on the reduction of emissions through emission reduction using abatement technology. Catalytic oxidation could be utilized to oxidize particulate matter precursors such as volatile organic compounds and soot particles to reduce secondary particulate formation. Although catalytic methods have not been effectively utilized in practical domestic applications, studies have shown effective soot reduction during laboratory testing. This study investigated the synthesis and use of a manganese oxide based catalyst to reduce particulate matter from domestic fuel burning stoves. The catalyst was synthesized onto a mesh substrate and inserted into the flue of the stove. During field testing, the presence of the catalyst increased the mass of particulate matter collected onto PTFE filters used for gravimetric analysis, with Scanning Electron Microscopy (SEM) analysis showing spherical particles in the pores of the filters used during the catalytic runs. The baseline runs had very few of these particle clusters. Energy Dispersive X-Ray (EDX) analysis of the catalyst run filters did not detect manganese, revealing that increased particulate concentrations were not as a result of macroscopic particles of the catalyst being dislodged from the support. Dislodgement of very small metal particles from the catalyst could, however serve as nucleation nodes for particle growth which would have a non-metal coating leading to the non-detection of manganese. The increase in particulate matter could also be caused by the impingement of particulate matter precursors on the catalyst followed by particle growth and dislodgement into the flue gas. The testwork showed that an active catalyst can be synthesized onto a mesh catalyst support in a relatively simple and cost-effective manner, which can be utilized in domestic fuel burning devices. It is recommended that a range of optimized, potentially active catalysts be tested to improve the oxidation of particulate matter precursors to carbon dioxide. Geography, Geoinformatics and Meteorology MSc (Environmental Management) Unrestricted 2023-04-04T09:55:00Z 2023-04-04T09:55:00Z 2023 2022 Mini Dissertation Steyn, M 2022, Synthesis of a manganese oxide catalyst for reduction of domestic fuel burning emissions, MSc dissertation, University of Pretoria, Pretoria http://hdl.handle.net/2263/90347 en © 2022 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf University of Pretoria |
| spellingShingle | UCTD House air pollution Manganese oxide catalyst Domestic fuel burning Catalytic oxidation South Africa Synthesis of a manganese oxide catalyst for reduction of domestic fuel burning emissions |
| title | Synthesis of a manganese oxide catalyst for reduction of domestic fuel burning emissions |
| title_full | Synthesis of a manganese oxide catalyst for reduction of domestic fuel burning emissions |
| title_fullStr | Synthesis of a manganese oxide catalyst for reduction of domestic fuel burning emissions |
| title_full_unstemmed | Synthesis of a manganese oxide catalyst for reduction of domestic fuel burning emissions |
| title_short | Synthesis of a manganese oxide catalyst for reduction of domestic fuel burning emissions |
| title_sort | synthesis of a manganese oxide catalyst for reduction of domestic fuel burning emissions |
| topic | UCTD House air pollution Manganese oxide catalyst Domestic fuel burning Catalytic oxidation South Africa |
| url | http://hdl.handle.net/2263/90347 |