Gas-phase epoxidation of Hexafluoropropene using molecular oxygen and alkali doped CuO catalyst: Mechanism and kinetics
The study investigated the partial oxidation of hexafluoropropene over CuO catalyst with molecular oxygen in a continuous flow fixed bed reactor. The catalysts were characterized using various techniques, and the results confirmed catalyst's structure-reactivity correlation. The major products...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-07-01
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| Series: | Catalysis Communications |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1566736723001140 |
| _version_ | 1827922597626511360 |
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| author | Lindelani Ndlovu David Lokhat Deresh Ramjugernath |
| author_facet | Lindelani Ndlovu David Lokhat Deresh Ramjugernath |
| author_sort | Lindelani Ndlovu |
| collection | DOAJ |
| description | The study investigated the partial oxidation of hexafluoropropene over CuO catalyst with molecular oxygen in a continuous flow fixed bed reactor. The catalysts were characterized using various techniques, and the results confirmed catalyst's structure-reactivity correlation. The major products were hexafluoropropene oxide (HFPO) and carbonyl fluoride, with minor trifluoroacetyl fluoride produced when the catalyst had significantly declined in primary activity. The maximum selectivity of 52.5% HFPO was obtained at 13.4% hexafluoropropene conversion at 4.5 bar and 453 K. The proposed redox mechanism kinetic model was in adequate agreement with the experimental data (R2 = 0.97 for COF2 and 0.67 for HFPO). |
| first_indexed | 2024-03-13T04:44:59Z |
| format | Article |
| id | doaj.art-f43d02fda80748ffae7c17f28e158174 |
| institution | Directory Open Access Journal |
| issn | 1873-3905 |
| language | English |
| last_indexed | 2024-03-13T04:44:59Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Catalysis Communications |
| spelling | doaj.art-f43d02fda80748ffae7c17f28e1581742023-06-19T04:27:52ZengElsevierCatalysis Communications1873-39052023-07-01180106712Gas-phase epoxidation of Hexafluoropropene using molecular oxygen and alkali doped CuO catalyst: Mechanism and kineticsLindelani Ndlovu0David Lokhat1Deresh Ramjugernath2Corresponding author.; Department of Chemical Engineering, Reactor Technology Research Group, University of KwaZulu-Natal, Durban 4041, South AfricaDepartment of Chemical Engineering, Reactor Technology Research Group, University of KwaZulu-Natal, Durban 4041, South AfricaDepartment of Chemical Engineering, Reactor Technology Research Group, University of KwaZulu-Natal, Durban 4041, South AfricaThe study investigated the partial oxidation of hexafluoropropene over CuO catalyst with molecular oxygen in a continuous flow fixed bed reactor. The catalysts were characterized using various techniques, and the results confirmed catalyst's structure-reactivity correlation. The major products were hexafluoropropene oxide (HFPO) and carbonyl fluoride, with minor trifluoroacetyl fluoride produced when the catalyst had significantly declined in primary activity. The maximum selectivity of 52.5% HFPO was obtained at 13.4% hexafluoropropene conversion at 4.5 bar and 453 K. The proposed redox mechanism kinetic model was in adequate agreement with the experimental data (R2 = 0.97 for COF2 and 0.67 for HFPO).http://www.sciencedirect.com/science/article/pii/S1566736723001140EpoxidationHexafluoropropeneHexafluoropropene oxideCopper oxide catalyst |
| spellingShingle | Lindelani Ndlovu David Lokhat Deresh Ramjugernath Gas-phase epoxidation of Hexafluoropropene using molecular oxygen and alkali doped CuO catalyst: Mechanism and kinetics Catalysis Communications Epoxidation Hexafluoropropene Hexafluoropropene oxide Copper oxide catalyst |
| title | Gas-phase epoxidation of Hexafluoropropene using molecular oxygen and alkali doped CuO catalyst: Mechanism and kinetics |
| title_full | Gas-phase epoxidation of Hexafluoropropene using molecular oxygen and alkali doped CuO catalyst: Mechanism and kinetics |
| title_fullStr | Gas-phase epoxidation of Hexafluoropropene using molecular oxygen and alkali doped CuO catalyst: Mechanism and kinetics |
| title_full_unstemmed | Gas-phase epoxidation of Hexafluoropropene using molecular oxygen and alkali doped CuO catalyst: Mechanism and kinetics |
| title_short | Gas-phase epoxidation of Hexafluoropropene using molecular oxygen and alkali doped CuO catalyst: Mechanism and kinetics |
| title_sort | gas phase epoxidation of hexafluoropropene using molecular oxygen and alkali doped cuo catalyst mechanism and kinetics |
| topic | Epoxidation Hexafluoropropene Hexafluoropropene oxide Copper oxide catalyst |
| url | http://www.sciencedirect.com/science/article/pii/S1566736723001140 |
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