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

^*Corresponding author for this work

Chemistry

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 (US)
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

Funding

This work is supported by ATHENA project, which is funded by Engineering and Physical Sciences Research Council (EPSRC) of the UK and Johnson Matthey plc.

Keywords

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

ASJC Scopus subject areas

General Chemistry
Environmental Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering

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10.1016/j.cej.2006.03.014

Cite this

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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",

author = "Jackson, {S. David} and Sreekala Rugmini and Stair, {Peter C.} and Zili Wu",

note = "Funding Information: This work is supported by ATHENA project, which is funded by Engineering and Physical Sciences Research Council (EPSRC) of the UK and Johnson Matthey plc.",

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doi = "10.1016/j.cej.2006.03.014",

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AU - Jackson, S. David

AU - Rugmini, Sreekala

AU - Stair, Peter C.

AU - Wu, Zili

N1 - Funding Information: This work is supported by ATHENA project, which is funded by Engineering and Physical Sciences Research Council (EPSRC) of the UK and Johnson Matthey plc.

PY - 2006/7/1

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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JO - Chemical Engineering Journal

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

Abstract

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Keywords

ASJC Scopus subject areas

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