Dehydrogenation of ethylbenzene to styrene over LaVOx/SBA-15 catalysts in the presence of carbon dioxide

B. S. Liu; G. Rui; R. Z. Chang; C. T. Au

doi:10.1016/j.apcata.2007.11.013

Dehydrogenation of ethylbenzene to styrene over LaVO_x/SBA-15 catalysts in the presence of carbon dioxide

B. S. Liu^*, G. Rui, R. Z. Chang, C. T. Au

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Journal article › peer-review

67 Citations (Scopus)

Abstract

The catalytic performance of a series of LaVO_x/SBA-15 catalysts with different vanadium loadings was investigated for the dehydrogenation of ethylbenzene to styrene using CO₂ as oxidant. The addition of La³⁺ has an effect of hindering carbon deposition and enhancing the stability of the catalysts. The 10%La₂O₃-15%V₂O₅/SBA-15 (wt%) catalyst exhibited the best activity and stability, giving a styrene yield of 74%. According to the results of characterization, the good performance of the catalyst could be related to the mono-dispersion of the VO₄^3- species and the synergistic action of lanthanum and vanadium.

Original language	English
Pages (from-to)	88-94
Number of pages	7
Journal	Applied Catalysis A: General
Volume	335
Issue number	1
DOIs	https://doi.org/10.1016/j.apcata.2007.11.013
Publication status	Published - 1 Feb 2008

Scopus Subject Areas

Catalysis
Process Chemistry and Technology

User-Defined Keywords

Carbon deposition
CO as oxidant
Dehydrogenation of ethylbenzene
Lanthanum promoters
SBA-15
Vanadium oxide

Access to Document

10.1016/j.apcata.2007.11.013

Cite this

@article{ac98207b0a8f4d6c971a3c8e00d0cc36,

title = "Dehydrogenation of ethylbenzene to styrene over LaVOx/SBA-15 catalysts in the presence of carbon dioxide",

abstract = "The catalytic performance of a series of LaVOx/SBA-15 catalysts with different vanadium loadings was investigated for the dehydrogenation of ethylbenzene to styrene using CO2 as oxidant. The addition of La3+ has an effect of hindering carbon deposition and enhancing the stability of the catalysts. The 10%La2O3-15%V2O5/SBA-15 (wt%) catalyst exhibited the best activity and stability, giving a styrene yield of 74%. According to the results of characterization, the good performance of the catalyst could be related to the mono-dispersion of the VO43- species and the synergistic action of lanthanum and vanadium.",

keywords = "Carbon deposition, CO as oxidant, Dehydrogenation of ethylbenzene, Lanthanum promoters, SBA-15, Vanadium oxide",

author = "Liu, {B. S.} and G. Rui and Chang, {R. Z.} and Au, {C. T.}",

note = "Funding Information: We acknowledge the financial support of the Scientific Research Foundation for Returned Overseas Chinese Scholars, State Education Ministry, China (2002-247), and thank the Center for Surface Analysis and Research of HKBU for BET and SAXRD investigation, and the Analytical Center of Tianjin University for TG/DTA analyses.",

year = "2008",

month = feb,

day = "1",

doi = "10.1016/j.apcata.2007.11.013",

language = "English",

volume = "335",

pages = "88--94",

journal = "Applied Catalysis A: General",

issn = "0926-860X",

publisher = "Elsevier",

number = "1",

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T1 - Dehydrogenation of ethylbenzene to styrene over LaVOx/SBA-15 catalysts in the presence of carbon dioxide

AU - Liu, B. S.

AU - Rui, G.

AU - Chang, R. Z.

AU - Au, C. T.

N1 - Funding Information: We acknowledge the financial support of the Scientific Research Foundation for Returned Overseas Chinese Scholars, State Education Ministry, China (2002-247), and thank the Center for Surface Analysis and Research of HKBU for BET and SAXRD investigation, and the Analytical Center of Tianjin University for TG/DTA analyses.

PY - 2008/2/1

Y1 - 2008/2/1

N2 - The catalytic performance of a series of LaVOx/SBA-15 catalysts with different vanadium loadings was investigated for the dehydrogenation of ethylbenzene to styrene using CO2 as oxidant. The addition of La3+ has an effect of hindering carbon deposition and enhancing the stability of the catalysts. The 10%La2O3-15%V2O5/SBA-15 (wt%) catalyst exhibited the best activity and stability, giving a styrene yield of 74%. According to the results of characterization, the good performance of the catalyst could be related to the mono-dispersion of the VO43- species and the synergistic action of lanthanum and vanadium.

AB - The catalytic performance of a series of LaVOx/SBA-15 catalysts with different vanadium loadings was investigated for the dehydrogenation of ethylbenzene to styrene using CO2 as oxidant. The addition of La3+ has an effect of hindering carbon deposition and enhancing the stability of the catalysts. The 10%La2O3-15%V2O5/SBA-15 (wt%) catalyst exhibited the best activity and stability, giving a styrene yield of 74%. According to the results of characterization, the good performance of the catalyst could be related to the mono-dispersion of the VO43- species and the synergistic action of lanthanum and vanadium.

KW - Carbon deposition

KW - CO as oxidant

KW - Dehydrogenation of ethylbenzene

KW - Lanthanum promoters

KW - SBA-15

KW - Vanadium oxide

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U2 - 10.1016/j.apcata.2007.11.013

DO - 10.1016/j.apcata.2007.11.013

M3 - Journal article

AN - SCOPUS:38049130195

SN - 0926-860X

VL - 335

SP - 88

EP - 94

JO - Applied Catalysis A: General

JF - Applied Catalysis A: General

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