Effects of interfacial diffusive transport on the dynamics of oscillating reactions

Reimus, Anne M.; Carta, Giorgio; Hudson, John L.

doi:10.1016/0009-2509(90)87009-h

Cited by 3 publications

(1 citation statement)

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“…Hronec and Ilavsky (1982) reported aperiodic oscillations in the exit oxygen concentrations in the isothermal oxidation of a mixture of a p-xylene and p-toluic acid (catalyzed) and of n-Dodecane (uncatalyzed) in an air-sparged reactor. A number of papers (Jensen, 1983;Roelofs et al, 1983;Reimus et al, 1989Reimus et al, , 1990 discussed oscillations in the air-oxidation of benzaldehyde under the catalytic influence of C02+/Br. The oscillations were initially observed as periodic changes in solution color and oxidation potential, but subsequently (Roelofs et al, 1983) were also observed in dissolved oxygen concentrations.…”

Section: Introductionmentioning

confidence: 99%

Rate oscillations in cyclohexane oxidation

1991

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Section: Introductionmentioning

confidence: 99%

Rate oscillations in cyclohexane oxidation

1991

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Modellierung reaktiver Stoffaustauschprozesse

Brinkmann

Warnecke

Prüß

1996

Chemie Ingenieur Technik

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The design of reactive exchange processes is generally accomplished with the aid of the enhancement factor, whose calculation is frequently possible only by iterative and approximate methods. In contrast, a mathematical model linking microscopic reaction‐diffusion equations with macroscopic phase balances permits direct calculation of absorption. Complication reaction pathways and non‐linear phase equilibria can then also be considered without making simplifying assumptions. The influence of liquid phase viscosity on exchange parameters can be quantified and included in model calculations by coupling the more comprehensive film penetration theory and the theory of isotropic turbulence. Simulations not only demonstrate the influence of the system and operating parameters on absorption but also indicate the importance of the choice of excange model in systems with conversiondependent liquid phase viscosity.

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