Catalytic and Physicochemical Properties of Oxidative Condensation Products in the Oxidative Dehydrogenation of Propane by Sulfur Dioxide on SiO2 View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2002-09

AUTHORS

I. G. Danilova, E. A. Paukshtis, A. V. Kalinkin, A. L. Chuvilin, G. S. Litvak, A. A. Altynnikov, V. F. Anufrienko

ABSTRACT

The effect of the deposition of oxidative condensation products in the reaction of oxidative propane dehydrogenation in the presence of SO2 on the catalytic, acid–base, and texture characteristics of silica was studied. It was found that the oxidative condensation products exhibited high catalytic activity in this reaction. The carbonization of silica from 0 to ∼40 wt % was accompanied by an increase in the yield of propylene from 3.4 to 46 mol % (640°C; a C3H8/SO2/He + N2 mixture, 10 : 10 : 80 vol %). Further accumulation of condensation products resulted in a considerable decrease in the pore volume and radius; this imposed diffusion limitations on both propane conversion and selectivity to propane conversion products. The nature of active and deactivated condensation products was studied by DRIFT spectroscopy, diffuse-reflectance UV–VIS spectroscopy, EPR spectroscopy, XPS, thermal analysis, and electron microscopy. More... »

PAGES

698-710

References to SciGraph publications

  • 1988-03. Propane dehydrogenation by SO2 in the presence of carbon in REACTION KINETICS AND CATALYSIS LETTERS
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1023/a:1020660214704

    DOI

    http://dx.doi.org/10.1023/a:1020660214704

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