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dc.contributor.author | Mehrabi-Kalajahi S. | |
dc.contributor.author | Varfolomeev M.A. | |
dc.contributor.author | Yuan C. | |
dc.contributor.author | Rodionov N.O. | |
dc.contributor.author | Zinnatullin A.L. | |
dc.contributor.author | Vagizov F.G. | |
dc.contributor.author | Osin Y.N. | |
dc.date.accessioned | 2022-02-09T20:34:14Z | |
dc.date.available | 2022-02-09T20:34:14Z | |
dc.date.issued | 2021 | |
dc.identifier.issn | 0887-0624 | |
dc.identifier.uri | https://dspace.kpfu.ru/xmlui/handle/net/169092 | |
dc.description.abstract | Oil-dispersed α-Fe2O3 nanocatalysts were prepared by coating α-Fe2O3 nanoparticles with oleic acid (OA). Mössbauer spectroscopy, X-ray diffraction, and field emission scanning electron microscopy were used to characterize α-Fe2O3 and α-Fe2O3@OA. Their impact on the oxidation process of heavy oil was evaluated using a porous medium thermo-effect cell and thermogravimetry-infrared spectroscopy coupled with isoconversional kinetic analysis. Compared with α-Fe2O3, α-Fe2O3@OA more efficiently catalyzed the combustion of heavy oil due to its good dispersion in heavy oil. α-Fe2O3 was found to be transformed into smaller size magnetite (Fe3O4), maghemite (γ-Fe2O3), and α-Fe2O3 during heavy oil combustion. Fe2O3@OA reduced the activation energy from a maximum of 537 to 246 kJ/mol, which considerably facilitates fuel formation and makes an easier transition from fuel formation to its combustion in the high-temperature oxidation (HTO) stage, thus shifting HTO into lower temperatures. These enhanced performances in the heavy oil combustion by α-Fe2O3@OA could be favorable for improving the efficiency of the in situ combustion (ISC) technique in oilfields. | |
dc.relation.ispartofseries | Energy and Fuels | |
dc.title | Oil-Dispersed α-Fe<inf>2</inf>O<inf>3</inf> Nanoparticles as a Catalyst for Improving Heavy Oil Oxidation | |
dc.type | Article | |
dc.relation.ispartofseries-issue | 13 | |
dc.relation.ispartofseries-volume | 35 | |
dc.collection | Публикации сотрудников КФУ | |
dc.relation.startpage | 10498 | |
dc.source.id | SCOPUS08870624-2021-35-13-SID85110358496 |