Effect of water on the oxidation of 2-butanone on vanadium oxide

Ismat Jahan, Harold H Kung

Research output: Contribution to journalArticle

6 Citations (Scopus)

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). Thus the main effect of water and alkali metal ion modification was to reduce the formation of carbonaceous deposits on the catalysts.

Original languageEnglish
Pages (from-to)2328-2331
Number of pages4
JournalIndustrial and Engineering Chemistry Research
Volume31
Issue number10
Publication statusPublished - Oct 1992

Fingerprint

Vanadium
vanadium
Alkali Metals
Oxides
alkali metal
Alkali metals
oxide
Metal ions
Diacetyl
oxidation
Oxidation
Acetaldehyde
acetaldehyde
Water
Acetic acid
Acetic Acid
acetic acid
ion
Carbon
catalyst

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Environmental Science(all)
  • Polymers and Plastics

Cite this

Effect of water on the oxidation of 2-butanone on vanadium oxide. / Jahan, Ismat; Kung, Harold H.

In: Industrial and Engineering Chemistry Research, Vol. 31, No. 10, 10.1992, p. 2328-2331.

Research output: Contribution to journalArticle

@article{dc7ac4a3c33148b49c235138edf782fc,
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). Thus the main effect of water and alkali metal ion modification was to reduce the formation of carbonaceous deposits on the catalysts.",
author = "Ismat Jahan and Kung, {Harold H}",
year = "1992",
month = "10",
language = "English",
volume = "31",
pages = "2328--2331",
journal = "Industrial and Engineering Chemistry Research",
issn = "0888-5885",
publisher = "American Chemical Society",
number = "10",

}

TY - JOUR

T1 - Effect of water on the oxidation of 2-butanone on vanadium oxide

AU - Jahan, Ismat

AU - Kung, Harold H

PY - 1992/10

Y1 - 1992/10

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). Thus 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). Thus the main effect of water and alkali metal ion modification was to reduce the formation of carbonaceous deposits on the catalysts.

UR - http://www.scopus.com/inward/record.url?scp=0026938761&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0026938761&partnerID=8YFLogxK

M3 - Article

VL - 31

SP - 2328

EP - 2331

JO - Industrial and Engineering Chemistry Research

JF - Industrial and Engineering Chemistry Research

SN - 0888-5885

IS - 10

ER -