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Abstract <p>The kinetics of coke combustion at temperatures of 525–650°C on a K–CrO<sub><i>x</i></sub>/γ-Al<sub>2</sub>O<sub>3</sub> catalyst for the direct dehydrogenation of <i>n</i>-butane to butadiene-1,3, which is an analogue of a commercial catalyst, has been studied. It has been shown that under the studied conditions, the coke combustion reaction is described by a first-order kinetic equation with respect oxygen and coke at an apparent activation energy of ~93 kJ/mol. The adequacy of the kinetic model has been confirmed by agreement between the calculated results and the test data.</p>

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n-Butane Dehydrogenation to 1,3-Butadiene. Part 3: Kinetics of Coked Chromia–Alumina Catalyst Regeneration

  • 期刊论文

  • 发表日期：

    2025年7月31日

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  • R. V. Petrov,
  • E. V. Ovchinnikova,
  • V. A. Chumachenko,
  • A. S. Noskov

摘要

Abstract

The kinetics of coke combustion at temperatures of 525–650°C on a K–CrOx/γ-Al2O3 catalyst for the direct dehydrogenation of n-butane to butadiene-1,3, which is an analogue of a commercial catalyst, has been studied. It has been shown that under the studied conditions, the coke combustion reaction is described by a first-order kinetic equation with respect oxygen and coke at an apparent activation energy of ~93 kJ/mol. The adequacy of the kinetic model has been confirmed by agreement between the calculated results and the test data.