Journal of Chemistry and Applied Chemical EngineeringISSN : 2576-3954

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Desulfuration processes in refinery and biorefinery: Insight into the role of catalyst protection by catalytic study in the o-xylene hydrogenation process


Alessandra Palella, Francesco Arena, Roberto Di Chio and Lorenzo Spadaro

National Council of Research, Institute for Advanced Energy Technology Nicola Giordano, Italy
Department of Engineering, University of Messina, Italy

: J Chem Appl Chem Eng

Abstract


Due to increased environmental concern, the European Union introduced the “zero-sulphur” legislation which limits the sulphur content in gasoline and diesel less than 10 mg/kg, thus requiring the development of new process technologies and improved HDS catalysts for ULSD applications. Commercial hydrotreating catalysts, however, are affected by several drawbacks that limit their performance. In particular, the acidic properties of catalyst can promote undesired side reactions, leading to catalyst deactivation by coke formation. Despite intensive efforts devoted to study deactivation phenomena, the nature of acid sites and their role in deactivation by coking is still unclear .On this account, the present study aims to ascertain the influence of the acidity of HDS catalysts on the catalytic pathway in the o-xylene hydrogenation process, as model reaction, and to examine the kinetic mechanism of coking phenomena, aiming also to disclose the key factors governing the catalyst deactivation and to identify new route for catalyst protection .

Biography


Alessandra Palella received her education at the University of Messina, obtaining M.Sc. in Industrial Chemistry. She has just completed her PhD in “Materials for Health, Environment and Energy”, from University of Rome. She is Research Associate at the National Council of Research and she works mainly on the design and development of catalytic materials and processes for energy and environmental applications. She has published more than 10 papers in reputed journals.

E-mail: alessandra.palella@itae.cnr.it

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