Oxidation of o-xylene over vanadium-porous titania glass catalysts

C Y  HONG; R P  COONEY; Russell Francis Howe

doi:10.1016/S0166-9834(00)83134-6 |

Oxidation of o-xylene over vanadium-porous titania glass catalysts

C Y HONG, R P COONEY, Russell Francis Howe

Chemistry

The University of Auckland

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

4 Citations (Scopus)

Abstract

Porous titania glass (PTG) has been loaded with vanadia by several different methods. Nitrogen adsorption-desorption isotherms and X-ray powder diffraction measurements indicate that impregnation methods produce oxovanadium species within the mesopores of the glass. The vanadia-PTG catalysts exhibit similar levels of selectivity and conversion for the oxidation of o-xylene to phthalic anhydride as conventional anatase or rutile supported catalysts, but at significantly lower temperatures. The activity for phthalic anhydride production increases with vanadium loading; the best performance of 50% selectivity to phthalic anhydride at 100% o-xylene conversion was achieved at 280-degrees-C with a catalyst containing 5.6% V (w/w).

Original language	English
Pages (from-to)	237-247
Number of pages	11
Journal	Applied Catalysis A: General
Volume	75
Issue number	2
DOIs	https://doi.org/10.1016/S0166-9834(00)83134-6 \|
Publication status	Published - 15 Aug 1991

Keywords

catalyst characterization (adsorption, XRD)
catalyst preparation (wet impregnantion)
phthalic anhydride
titania glass
vanadia titania
ortho-xylene oxidation
phtalic-anhydride
V2O5-TIO2 catalysts
TIO2 catalysts
oxide system
active phase
monolayer
temperature
pentoxide
evolution
kinetics

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10.1016/S0166-9834(00)83134-6 |

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@article{63e7dcc44c9e4c7cb0726c0a7a9178ba,

title = "Oxidation of o-xylene over vanadium-porous titania glass catalysts",

abstract = "Porous titania glass (PTG) has been loaded with vanadia by several different methods. Nitrogen adsorption-desorption isotherms and X-ray powder diffraction measurements indicate that impregnation methods produce oxovanadium species within the mesopores of the glass. The vanadia-PTG catalysts exhibit similar levels of selectivity and conversion for the oxidation of o-xylene to phthalic anhydride as conventional anatase or rutile supported catalysts, but at significantly lower temperatures. The activity for phthalic anhydride production increases with vanadium loading; the best performance of 50% selectivity to phthalic anhydride at 100% o-xylene conversion was achieved at 280-degrees-C with a catalyst containing 5.6% V (w/w).",

keywords = "catalyst characterization (adsorption, XRD), catalyst preparation (wet impregnantion), phthalic anhydride, titania glass, vanadia titania, ortho-xylene oxidation, phtalic-anhydride, V2O5-TIO2 catalysts, TIO2 catalysts, oxide system, active phase, monolayer, temperature, pentoxide, evolution, kinetics",

author = "HONG, {C Y} and COONEY, {R P} and Howe, {Russell Francis}",

year = "1991",

month = aug,

day = "15",

doi = "10.1016/S0166-9834(00)83134-6 |",

language = "English",

volume = "75",

pages = "237--247",

journal = "Applied Catalysis A: General",

issn = "0926-860X",

publisher = "Elsevier",

number = "2",

}

TY - JOUR

T1 - Oxidation of o-xylene over vanadium-porous titania glass catalysts

AU - HONG, C Y

AU - COONEY, R P

AU - Howe, Russell Francis

PY - 1991/8/15

Y1 - 1991/8/15

N2 - Porous titania glass (PTG) has been loaded with vanadia by several different methods. Nitrogen adsorption-desorption isotherms and X-ray powder diffraction measurements indicate that impregnation methods produce oxovanadium species within the mesopores of the glass. The vanadia-PTG catalysts exhibit similar levels of selectivity and conversion for the oxidation of o-xylene to phthalic anhydride as conventional anatase or rutile supported catalysts, but at significantly lower temperatures. The activity for phthalic anhydride production increases with vanadium loading; the best performance of 50% selectivity to phthalic anhydride at 100% o-xylene conversion was achieved at 280-degrees-C with a catalyst containing 5.6% V (w/w).

AB - Porous titania glass (PTG) has been loaded with vanadia by several different methods. Nitrogen adsorption-desorption isotherms and X-ray powder diffraction measurements indicate that impregnation methods produce oxovanadium species within the mesopores of the glass. The vanadia-PTG catalysts exhibit similar levels of selectivity and conversion for the oxidation of o-xylene to phthalic anhydride as conventional anatase or rutile supported catalysts, but at significantly lower temperatures. The activity for phthalic anhydride production increases with vanadium loading; the best performance of 50% selectivity to phthalic anhydride at 100% o-xylene conversion was achieved at 280-degrees-C with a catalyst containing 5.6% V (w/w).

KW - catalyst characterization (adsorption, XRD)

KW - catalyst preparation (wet impregnantion)

KW - phthalic anhydride

KW - titania glass

KW - vanadia titania

KW - ortho-xylene oxidation

KW - phtalic-anhydride

KW - V2O5-TIO2 catalysts

KW - TIO2 catalysts

KW - oxide system

KW - active phase

KW - monolayer

KW - temperature

KW - pentoxide

KW - evolution

KW - kinetics

U2 - 10.1016/S0166-9834(00)83134-6 |

DO - 10.1016/S0166-9834(00)83134-6 |

M3 - Article

SN - 0926-860X

VL - 75

SP - 237

EP - 247

JO - Applied Catalysis A: General

JF - Applied Catalysis A: General

IS - 2

ER -

Oxidation of o-xylene over vanadium-porous titania glass catalysts

Abstract

Keywords

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