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Catalytic oxidation of acrolein to acrylic acid over a molybdenum-vanadium catalyst

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Abstract

By the method of gas chromatography it has been found that the adsorption of acrolein takes place without dissociation whereas acrylic acid is adsorbed dissociatively. The adsorption of water vapor proceeds also dissociatively and results in increasing the number of the Brönsted acid centers. The presence of water vapor has a positive effect on the desorption rate of acrylic acid and a negative effect on the reoxidation rate of the catalyst.

Abstract

Методом газовой хроматографии установлено, что адсорбция акролеина не сопровождается диссоциацией, в то время как акриловая кислота адсорбируется с диссоциацией. Адсорбция водяного пара также протекает путем диссоциации, что приводит к увеличению числа кислотных центров Бронстедовского типа. Присутствие водяного пара оказывает положительное воздействие на скорость десорбции акриловой кислоты, а отрицательное — на скорость окисления катализатора.

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Authors and Affiliations

  1. Institute of Chemical Technology, 532 10, Pardubice, Czechoslovakia

    J. Tichý, J. Švachula & J. Machek

  2. Institute of Petroleum Chemistry, Baku, USSR

    N. Ch. Allachverdova

Authors
  1. J. Tichý
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  2. J. Švachula
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  3. J. Machek
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  4. N. Ch. Allachverdova
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Tichý, J., Švachula, J., Machek, J. et al. Catalytic oxidation of acrolein to acrylic acid over a molybdenum-vanadium catalyst. React Kinet Catal Lett 31, 159–166 (1986). https://doi.org/10.1007/BF02062527

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  • DOI: https://doi.org/10.1007/BF02062527

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