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The rate of chemical reaction at the surface of a non-porous catalytic sphere in concentration and temperature gradients—I: Steady state solutions

✍ Scribed by E.E. Petersen; J.C. Friedly; R.J. DeVogelaere

Publisher: Elsevier Science
Year: 1964
Tongue: English
Weight: 680 KB
Volume: 19
Category: Article
ISSN: 0009-2509
DOI: 10.1016/0009-2509(64)85055-7

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✦ Synopsis

Exact solutions are obtained to the system of a single non-porous catalytic sphere immersed in a reactant field having strong concentration and temperature gradients when the particle reacts chemically with its surroundings. When these solutions are compared with the exact solutions to the corresponding system in the absence of gradients, it is found that the magnitude of the gradients must be very large to appreciably influence the overall rate of the surface reaction.

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The rate of chemical reaction at the surface of non-porous catalytic sphere in concentration and temperature gradients—II: Stability of nonisothermal solutions

✍ J.C. Friedly; E.E. Petersen 📂 Article 📅 1964 🏛 Elsevier Science 🌐 English ⚖ 811 KB

The stability of the muhiple steady state solutions to the problem of a non-isothermal reaction at a spherical surface in the presence of large concentration gradients is rigorously determined. Solutions which are located in either the kinetically controlled or the diffusion controlled regimes are f