Activation of Vanadium Phosphorus Oxide Catalysts for Alkane Oxidation. The Influence of the Oxidation State on Catalyst Selectivity

The selective conversion of light alkanes to oxygenates is important to both the petrochemical and energy industries. Oxygenates are used in the preparation of a large number of chemicals, polymers, and plastics. The reaction of n-butane with reactor equilibrated'' (VO)[sub 2]P[sub 2]O[sub...

Full description

Saved in:
Bibliographic Details
Published in:Industrial & engineering chemistry research 1994-12, Vol.33 (12), p.2935-2941
Main Authors: Schuurman, Yves, Gleaves, John T
Format: Article
Language:English
Subjects:
02 PETROLEUM
ADDITIVES
ALKANES
Applied sciences
BUTANE
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL ACTIVATION
Chemical industry and chemicals
CHEMICAL REACTIONS
Exact sciences and technology
FUEL ADDITIVES
HYDROCARBONS
Industrial chemicals
ORGANIC COMPOUNDS
Organic industry
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PHOSPHORUS COMPOUNDS
PHOSPHORUS OXIDES
TRANSITION ELEMENT COMPOUNDS
VALENCE
VANADIUM COMPOUNDS 020500 > Petroleum-- Products & By-Products
VANADIUM OXIDES
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The selective conversion of light alkanes to oxygenates is important to both the petrochemical and energy industries. Oxygenates are used in the preparation of a large number of chemicals, polymers, and plastics. The reaction of n-butane with reactor equilibrated'' (VO)[sub 2]P[sub 2]O[sub 7]-based catalysts activated with different oxygen treatments has been investigated using high speed transient response techniques. It is shown that by maintaining the catalyst in a highly oxidized state the rate of maleic anhydride formation increases, and the n-butane selectivity to maleic anhydride improves. The activation energy for the reaction of n-butane was obtained by a kinetic analysis of the transient responses as a function of the temperature. The value of the activation energy depends on the oxidation state of the catalyst.
ISSN:0888-5885
1520-5045
DOI:10.1021/ie00036a007