Catalytic Transformation of Ethylbenzene over Y-Zeolite-based Catalysts

Sulaiman Al-Khattaf

doi:10.1021/ef8005542

Catalytic Transformation of Ethylbenzene over Y-Zeolite-based Catalysts

Sulaiman Al-Khattaf

Research output: Contribution to journal › Article › peer-review

12 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 language	English (US)
Pages (from-to)	3612-3619
Number of pages	8
Journal	Energy & Fuels
Volume	22
Issue number	6
DOIs	https://doi.org/10.1021/ef8005542
State	Published - Nov 19 2008
Externally published	Yes

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10.1021/ef8005542

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@article{a1c36134cc7f4e9ab5812f0b3b66d620,

title = "Catalytic Transformation of Ethylbenzene over Y-Zeolite-based Catalysts",

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). {\textcopyright} 2008 American Chemical Society.",

author = "Sulaiman Al-Khattaf",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: The 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. This publication acknowledges KAUST support, but has no KAUST affiliated authors.",

year = "2008",

month = nov,

day = "19",

doi = "10.1021/ef8005542",

language = "English (US)",

volume = "22",

pages = "3612--3619",

journal = "Energy & Fuels",

issn = "0887-0624",

publisher = "American Chemical Society",

number = "6",

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T1 - Catalytic Transformation of Ethylbenzene over Y-Zeolite-based Catalysts

AU - Al-Khattaf, Sulaiman

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: The 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. This publication acknowledges KAUST support, but has no KAUST affiliated authors.

PY - 2008/11/19

Y1 - 2008/11/19

N2 - 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.

AB - 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.

UR - http://hdl.handle.net/10754/600099

UR - https://pubs.acs.org/doi/10.1021/ef8005542

UR - http://www.scopus.com/inward/record.url?scp=57849097819&partnerID=8YFLogxK

U2 - 10.1021/ef8005542

DO - 10.1021/ef8005542

M3 - Article

SN - 0887-0624

VL - 22

SP - 3612

EP - 3619

JO - Energy & Fuels

JF - Energy & Fuels

IS - 6

ER -

Catalytic Transformation of Ethylbenzene over Y-Zeolite-based Catalysts

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