Effect of Water on the Oxidation of 2-Butanone on Vanadium Oxide

Ismat Jahan; Harold H. Kung

doi:10.1021/ie00010a011

Effect of Water on the Oxidation of 2-Butanone on Vanadium Oxide

Ismat Jahan, Harold H. Kung^*

^*Corresponding author for this work

Chemical and Biological Engineering

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

7 Scopus citations

Abstract

The oxidation of 2-butanone was studied over V₂O₅ and V₂O₅ modified by Cs and K at 250 °C with various partial pressures of water in the feed. Acetic acid and acetaldehyde were the most abundant products. Other major products were 2, 3-butanedione and carbon oxides. The addition of water to the feed increased the activities of the catalysts as well as the selectivities to acetic acid, acetaldehyde, and 2, 3-butanedione. Modification of V₂O₅ with alkali metal ions increased the activity. The increase in activity due to water and alkali metal ion modification correlated well with the decrease in weight loss in thermogravimetric analysis (TGA) measurements in oxygen and with the surface carbon/vanadium ratios as determined by X-ray photoelectron spectroscopy (XPS). Thxis the main effect of water and alkali metal ion modification was to reduce the formation of carbonaceous deposits on the catalysts.

Original language	English (US)
Pages (from-to)	2328-2331
Number of pages	4
Journal	Industrial and Engineering Chemistry Research
Volume	31
Issue number	10
DOIs	https://doi.org/10.1021/ie00010a011
State	Published - Oct 1 1992

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering

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title = "Effect of Water on the Oxidation of 2-Butanone on Vanadium Oxide",

abstract = "The oxidation of 2-butanone was studied over V2O5 and V2O5 modified by Cs and K at 250 °C with various partial pressures of water in the feed. Acetic acid and acetaldehyde were the most abundant products. Other major products were 2, 3-butanedione and carbon oxides. The addition of water to the feed increased the activities of the catalysts as well as the selectivities to acetic acid, acetaldehyde, and 2, 3-butanedione. Modification of V2O5 with alkali metal ions increased the activity. The increase in activity due to water and alkali metal ion modification correlated well with the decrease in weight loss in thermogravimetric analysis (TGA) measurements in oxygen and with the surface carbon/vanadium ratios as determined by X-ray photoelectron spectroscopy (XPS). Thxis the main effect of water and alkali metal ion modification was to reduce the formation of carbonaceous deposits on the catalysts.",

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T1 - Effect of Water on the Oxidation of 2-Butanone on Vanadium Oxide

AU - Jahan, Ismat

AU - Kung, Harold H.

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N2 - The oxidation of 2-butanone was studied over V2O5 and V2O5 modified by Cs and K at 250 °C with various partial pressures of water in the feed. Acetic acid and acetaldehyde were the most abundant products. Other major products were 2, 3-butanedione and carbon oxides. The addition of water to the feed increased the activities of the catalysts as well as the selectivities to acetic acid, acetaldehyde, and 2, 3-butanedione. Modification of V2O5 with alkali metal ions increased the activity. The increase in activity due to water and alkali metal ion modification correlated well with the decrease in weight loss in thermogravimetric analysis (TGA) measurements in oxygen and with the surface carbon/vanadium ratios as determined by X-ray photoelectron spectroscopy (XPS). Thxis the main effect of water and alkali metal ion modification was to reduce the formation of carbonaceous deposits on the catalysts.

AB - The oxidation of 2-butanone was studied over V2O5 and V2O5 modified by Cs and K at 250 °C with various partial pressures of water in the feed. Acetic acid and acetaldehyde were the most abundant products. Other major products were 2, 3-butanedione and carbon oxides. The addition of water to the feed increased the activities of the catalysts as well as the selectivities to acetic acid, acetaldehyde, and 2, 3-butanedione. Modification of V2O5 with alkali metal ions increased the activity. The increase in activity due to water and alkali metal ion modification correlated well with the decrease in weight loss in thermogravimetric analysis (TGA) measurements in oxygen and with the surface carbon/vanadium ratios as determined by X-ray photoelectron spectroscopy (XPS). Thxis the main effect of water and alkali metal ion modification was to reduce the formation of carbonaceous deposits on the catalysts.

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Effect of Water on the Oxidation of 2-Butanone on Vanadium Oxide

Abstract

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