Screening hydrotreating catalysts for the valorization of a light cycle oil/scrap tires oil blend based on a detailed product analysis

Roberto Palos, Timo Kekäläinen, Frank Duodu, Alazne Gutiérrez, José M. Arandes, Janne Jänis, Pedro Castaño

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17 Scopus citations


Predicting the hydrotreating performance of industrial catalysts used for upgrading heavy oils is hampered by the unknown chemistry behind it. In this work, we have used a set of chromatographic and mass spectrometric techniques (APPI/ESI FT-ICR MS, FID-MS GC × GC and PFPD GC) for acquiring a more precise composition of the feed and products of the hydrotreatment of a blend of light cycle oil and scrap tire oil (20 vol%) using three benchmark catalysts: CoMo/Al2O3, NiMo/SiO2-Al2O3 and NiW/USY zeolite. Despite the different nature of the catalysts, the composition of the products was relatively similar, indicating the slower and controlled transformation of the heaviest molecules of the feed, particularly in tire oil. A faithful analysis of these molecules by combining the results of the analysis clarifies the multiple mechanisms affecting hydrotreating simultaneously: hydrodearomatization, hydrocracking, hydrodesulfurization, hydrodeoxygenation and hydrodenitrification. An effort has been made to use these results in a quantitative manner for catalyst screening.
Original languageEnglish (US)
Pages (from-to)117863
JournalApplied Catalysis B: Environmental
StatePublished - Jun 11 2019

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: The financial support of this work was undertaken by the Ministry of Economy and Competitiveness (MINECO) of the Spanish Government (CTQ2015-67425R and CTQ2016-79646P), the ERDF funds of the European Union and the Basque Government (IT748-13). The authors thank for technical and human support provided by SGIker of UPV/EHU and European funding (ERDF and ESF). This work was also supported by EU Horizon 2020 Research and Innovation Programme (Grant 731077) and the Academy of Finland/Strategic Research Council (Grants 259901 & 293380). The FT-ICR MS facility was supported by Biocenter Finland and Biocenter Kuopio and the European Regional Development Fund (Grant A70135).


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