Optimization of crotonaldehyde oxidation catalysts using response surface methodology

Jihai Tang, Xu Qiao, Mifen Cui, Yi Ying, Xian Chen, Congke Wen

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Crotonic acid was produced by oxidation of crotonaldehyde over molybdophosphoric acid supported on activated carbon. The full 23 central composite design was performed and aimed at optimizing oxidation catalysts to maximize the yield of crotonic acid. Response surface methodology was applied to obtain a second-order polynomial model and to generate the optimum conditions, with a loading of molybdophosphoric acid of 0.25, mass ratio of catalyst to crotonaldehyde of 0.025 and mass ratio of vanadium pentoxide to molybdophosphoric acid of 0.08. The crotonic acid yield was 66.7 % under these conditions. Three experiments were conducted using the same optimum conditions, and therefore, good agreement was observed between the experimental data and the predicted values obtained from the model, by comparison.

Original languageEnglish
Pages (from-to)404-408
Number of pages5
JournalChemical Engineering and Technology
Volume31
Issue number3
DOIs
StatePublished - Mar 2008

Keywords

  • Activated carbon
  • Catalysts
  • Modeling
  • Oxidation
  • Response surface methodology

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