A comparison of catalyst deactivation of vanadia catalysts used for alkane dehydrogenation

S. David Jackson; Sreekala Rugmini; Peter C. Stair; Zili Wu

doi:10.1016/j.cej.2006.03.014

A comparison of catalyst deactivation of vanadia catalysts used for alkane dehydrogenation

S. David Jackson, Sreekala Rugmini, Peter C. Stair, Zili Wu

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

22 Scopus citations

Abstract

A series of vanadia/θ-alumina catalysts have been prepared, characterised and tested for n-butane dehydrogenation. We examined two catalysts having vanadium loadings of 1 and 3.5% V in more detail. The extent of carbon laydown is extremely sensitive to the nature of vanadia surface species. Studies show that the isolated VO_x species are much more effective at catalysing carbon deposition during dehydrogenation than the polyvanadate species. It is also clear that polyvanadate species are more effective at dehydrogenation compared to the isolated vanadia species.

Original language	English
Pages (from-to)	127-132
Number of pages	6
Journal	Chemical Engineering Journal
Volume	120
Issue number	1-2
DOIs	https://doi.org/10.1016/j.cej.2006.03.014
State	Published - Jul 1 2006
Externally published	Yes

Keywords

Deactivation
Nature of carbon species
UV-vis. Raman spectra
Vanadia catalysts
n-Butane dehydrogenation

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10.1016/j.cej.2006.03.014

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title = "A comparison of catalyst deactivation of vanadia catalysts used for alkane dehydrogenation",

abstract = "A series of vanadia/θ-alumina catalysts have been prepared, characterised and tested for n-butane dehydrogenation. We examined two catalysts having vanadium loadings of 1 and 3.5% V in more detail. The extent of carbon laydown is extremely sensitive to the nature of vanadia surface species. Studies show that the isolated VOx species are much more effective at catalysing carbon deposition during dehydrogenation than the polyvanadate species. It is also clear that polyvanadate species are more effective at dehydrogenation compared to the isolated vanadia species.",

keywords = "Deactivation, Nature of carbon species, UV-vis. Raman spectra, Vanadia catalysts, n-Butane dehydrogenation",

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AU - Jackson, S. David

AU - Rugmini, Sreekala

AU - Stair, Peter C.

AU - Wu, Zili

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Y1 - 2006/7/1

N2 - A series of vanadia/θ-alumina catalysts have been prepared, characterised and tested for n-butane dehydrogenation. We examined two catalysts having vanadium loadings of 1 and 3.5% V in more detail. The extent of carbon laydown is extremely sensitive to the nature of vanadia surface species. Studies show that the isolated VOx species are much more effective at catalysing carbon deposition during dehydrogenation than the polyvanadate species. It is also clear that polyvanadate species are more effective at dehydrogenation compared to the isolated vanadia species.

AB - A series of vanadia/θ-alumina catalysts have been prepared, characterised and tested for n-butane dehydrogenation. We examined two catalysts having vanadium loadings of 1 and 3.5% V in more detail. The extent of carbon laydown is extremely sensitive to the nature of vanadia surface species. Studies show that the isolated VOx species are much more effective at catalysing carbon deposition during dehydrogenation than the polyvanadate species. It is also clear that polyvanadate species are more effective at dehydrogenation compared to the isolated vanadia species.

KW - Deactivation

KW - Nature of carbon species

KW - UV-vis. Raman spectra

KW - Vanadia catalysts

KW - n-Butane dehydrogenation

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SP - 127

EP - 132

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

IS - 1-2

ER -

A comparison of catalyst deactivation of vanadia catalysts used for alkane dehydrogenation

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Keywords

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