Kinetics of γ-alumina chlorination by tetrachloroethylene

I. Bertóti, I. S. Pap, A. Tóth, T. Székely

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Abstract

The kinetics of the reaction between γ-Al2O3 and gaseous C2Cl4 have been studied by anisothermal and isothermal TG measurements in the temperature range 298-1123 K. The weight loss due to chlorination becomes measurable above 933 K. Supposing dissociative adsorption the initial reaction rate can be described by a Langmuir-Hinshelwood type of rate expression in the partial pressure range investigated (0-2 x 103 Pa C2Cl4. The apparent activation energy calculated from the initial reaction rates (141 kJ mole-1) is in good agreement with that calculated from the rate constants of the Langmuir-Hinshelwood expression (133 kJ mole-1). The characteristic temperature dependence observed earlier in the γ-Al2O3 + CCl4 system can be interpreted by the results obtained in this work.

Original languageEnglish
Pages (from-to)333-336
Number of pages4
JournalThermochimica Acta
Volume44
Issue number3
DOIs
Publication statusPublished - Apr 1 1981

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ASJC Scopus subject areas

  • Instrumentation
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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