Activation of vanadium phosphorus oxide catalysts for alkane oxidation: The influence of the oxidation state on catalyst selectivity

Journal Article · Thu Dec 01 00:00:00 EST 1994 · Industrial and Engineering Chemistry Research; (United States)

DOI:https://doi.org/10.1021/ie00036a007· OSTI ID:6897526

Schuurman, Y; Gleaves, J T ^[1]

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1. Washington Univ., St. Louis, MO (United States). Dept. of Chemical Engineering

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.

• OSTI ID: 6897526
• Journal Information: Industrial and Engineering Chemistry Research; (United States), Vol. 33:12; ISSN 0888-5885
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
BUTANE
OXIDATION
CATALYSTS
CHEMICAL ACTIVATION
PHOSPHORUS OXIDES
CATALYTIC EFFECTS
VANADIUM OXIDES
FUEL ADDITIVES
VALENCE
ADDITIVES
ALKANES
CHALCOGENIDES
CHEMICAL REACTIONS
HYDROCARBONS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHOSPHORUS COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
VANADIUM COMPOUNDS
020500* - Petroleum- Products & By-Products