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dc.contributor.authorPaz Carmona, Héctor de 
dc.contributor.authorHorá`cek, Jan
dc.contributor.authorTisler, Zdenek
dc.contributor.authorAkhmetzyanova, Uliana R.
dc.date.accessioned2024-01-24T21:06:28Z
dc.date.available2024-01-24T21:06:28Z
dc.date.issued2019
dc.identifier.issn0016-2361
dc.identifier.urihttp://riull.ull.es/xmlui/handle/915/35633
dc.description.abstractGenerally, the commercial catalysts for hydrotreatment in refineries are supported sulfide transition-metal-based catalysts. However, the co-processing of vegetable oils reduces their hydrodesulfurization (HDS) efficiency by leaching sulfur from the active sites of the catalyst. The present work reports the use of six sulfur-free MoCx and MoNx catalysts (supporter with Al2O3, TiO2 or ZrO2) for the hydrotreatment of atmospheric gasoil (AGO) and co-processing of rapeseed oil (RSO – 5, 10 and 25 wt%). The screening tests were carried out in a fixed bed reactor at industrial operating conditions (330–350 °C, 5.5 MPa, WHSV = 1–2 h−1). Higher reaction temperatures and lower WHSV had a positive effect on catalyst activity and product quality. In case of co-processing, the hydrodeoxygenation reaction mechanism was found to be dominant, producing n-C16 and n-C18 n-alkanes at all AGO/RSO ratios used. Overall, our results suggest that alumina supported catalysts are the most promising materials, exhibiting a combination of excellent stability, high activity and no negative effects on HDS efficiency during AGO/RSO co-processing.
dc.format.mimetypeapplication/pdf
dc.language.isoen
dc.relation.ispartofseriesFuel. Volume 254, 15 October 2019,
dc.rightsLicencia Creative Commons (Reconocimiento-No comercial-Sin obras derivadas 4.0 Internacional)
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es_ES
dc.titleSulfur free supported MoCx and MoNx catalysts for the hydrotreatment of atmospheric gasoil and its blends with rapeseed oil
dc.typeinfo:eu-repo/semantics/article
dc.identifier.doi10.1016/j.fuel.2019.05.165
dc.subject.keywordMolybdenum nitride
dc.subject.keywordMolybdenum carbide
dc.subject.keywordHydrotreatment
dc.subject.keywordSulfur
dc.subject.keywordVegetable oil
dc.subject.keywordCo-processing


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