Catalytic Transformation of Ethylbenzene over Y-Zeolite-based Catalysts

Sulaiman Al-Khattaf

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

Catalytic transformation of ethylbenzene (EB) has been investigated over ultrastable Y (USY)-zeolite-based catalysts in a novel riser simulator at different operating conditions. The effect of reaction conditions on EB conversion is reported. The USY catalyst (FCC-Y) was modified by steaming to form a significantly lower acidity catalyst (FCC-SY). The current study shows that the FCC-SY catalyst favors EB disproportionation more than cracking. A comparison has been made between the results of EB conversion over the lowly acidic catalyst (FCC-SY) and the highly acidic catalyst (FCC-Y) under identical conditions. It was observed that increase in catalyst acidity favored cracking of EB at the expense of disproportionation. Kinetic parameters for EB disappearance during disproportionation reaction over the FCC-SY catalyst were calculated using the catalyst activity decay function based on time on stream (TOS). © 2008 American Chemical Society.
Original languageEnglish (US)
Pages (from-to)3612-3619
Number of pages8
JournalEnergy & Fuels
Volume22
Issue number6
DOIs
StatePublished - Nov 19 2008
Externally publishedYes

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