Influence of the support on the deactivation of bifunctional catalysts (Pt-Pd/support) in the hydrocracking of LCO

Alazne Gutiérrez, José M. Arandes, Pedro Castaño, Andrés T. Aguayo, Javier Bilbao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

The deactivation of bifunctional catalysts (Pt-Pd/support) has been studied on the hydrocracking of LCO (light cycle oil, which is a highly aromatic byproduct in the FCC unit). The reactions were performed in a fixed bed reactor using a Pt-Pd catalyst prepared with supports of different acidity and pore structure: B (H-beta zeolite), Y5, Y12 (H-USY zeolites with SiO2/Al2O3=5 and 12), F (commercial FCC catalyst) and A (γ-Al2O3). The operating conditions were: 350 °C, 50 bar, WHSV= 4 h-1, H2/LCO ratio (nH2) =8.9 and time on stream (TOS) = 300 min. The results show that, once the initial deactivation has been elapsed, the catalyst reach a pseudo-stable state subsequent to TOS = 250 min, with a considerable residual activity that is maintained constant. This residual activity increases as catalyst acidity is increased. © 2011, AIDIC Servizi S.r.l.
Original languageEnglish (US)
Title of host publicationChemical Engineering Transactions
PublisherItalian Association of Chemical Engineering - AIDIC aidic@aidic.it
DOIs
StatePublished - Jan 1 2011
Externally publishedYes

Fingerprint Dive into the research topics of 'Influence of the support on the deactivation of bifunctional catalysts (Pt-Pd/support) in the hydrocracking of LCO'. Together they form a unique fingerprint.

Cite this