Catalytic Transformation of Ethylbenzene over Y-Zeolite-based Catalysts
AbstractCatalytic 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.
CitationAl-Khattaf S (2008) Catalytic Transformation of Ethylbenzene over Y-Zeolite-based Catalysts. Energy Fuels 22: 3612–3619. Available: http://dx.doi.org/10.1021/ef8005542.
SponsorsThe author would like to express his appreciation for King Abdullah University of Science and Technology (KAUST) for their financial support. Also the support of the King Fahd University of Petroleum and Minerals is highly appreciated. Acknowledgement also goes to Mr. Mariano Gica for his help during the experimental work and Dr Nassem Akhter.
PublisherAmerican Chemical Society (ACS)
JournalEnergy & Fuels