dc.contributor.author | Gavrilovic, Ljubisa | |
dc.contributor.author | Jørgensen, Erik Andreas | |
dc.contributor.author | Pandey, Umesh | |
dc.contributor.author | Putta, Koteswara Rao | |
dc.contributor.author | Rout, Kumar Ranjan | |
dc.contributor.author | Rytter, Erling | |
dc.contributor.author | Hillestad, Magne | |
dc.contributor.author | Blekkan, Edd Anders | |
dc.date.accessioned | 2021-05-06T09:34:15Z | |
dc.date.available | 2021-05-06T09:34:15Z | |
dc.date.created | 2020-08-16T11:20:30Z | |
dc.date.issued | 2020 | |
dc.identifier.citation | Catalysis Today. 2020, . | en_US |
dc.identifier.issn | 0920-5861 | |
dc.identifier.uri | https://hdl.handle.net/11250/2753882 | |
dc.description.abstract | Fischer-Tropsch synthesis has been investigated over a commercial type cobalt-based catalyst (20 %Co/0.5 %Re/γ-Al2O3) by varying the H2/CO ratio (2.55–1.12), CO conversion (15–75 %), reaction temperature (210 °C, 230 °C), and by adding water to the syngas. The experiments were conducted in a fixed bed reactor with the main purpose of obtaining experimental data to be used in the development and fitting of a mechanistic model. A positive effect of water on the catalyst activity was found for experiments with a H2/CO ratio higher than 1.7. Water was found to always increase the C5+ selectivity regardless of the H2/CO ratio. Increasing conversion led to increased C5+ selectivity. The selectivity to CO2 was significantly enhanced at higher conversions (high water partial pressure), particularly with the lowest H2/CO = 1.12, interpreted as the emergence of water-gas shift activity. Re-oxidation of cobalt, probably limited to small cobalt particles, is proposed as the main deactivation mechanism caused by water while a steeper deactivation curve was found for higher temperature, indicating that sintering also may play a role. | en_US |
dc.language.iso | eng | en_US |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.title | Fischer-Tropsch synthesis over an alumina-supported cobalt catalyst in a fixed bed reactor – Effect of process parameters | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | publishedVersion | en_US |
dc.rights.holder | © 2020 The Author(s). | en_US |
dc.source.pagenumber | 8 | en_US |
dc.source.journal | Catalysis Today | en_US |
dc.identifier.doi | 10.1016/j.cattod.2020.07.055 | |
dc.identifier.cristin | 1823480 | |
dc.relation.project | Norges forskningsråd: 228741 | en_US |
dc.relation.project | Norges forskningsråd: 280846 | en_US |
dc.relation.project | Norges forskningsråd: 257622 | en_US |
cristin.ispublished | true | |
cristin.fulltext | postprint | |
cristin.fulltext | original | |
cristin.qualitycode | 2 | |