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The dynamic response of a single catalyst pellet

✍ Scribed by Simon P. Waldram; Milorad P. Duduković

Publisher
Elsevier Science
Year
1979
Tongue
English
Weight
217 KB
Volume
34
Category
Article
ISSN
0009-2509

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📜 SIMILAR VOLUMES

Dynamic response of a single catalyst pe
Dynamic response of a single catalyst pellet
✍ A. Burghardt; J.M. Smith 📂 Article 📅 1979 🏛 Elsevier Science 🌐 English ⚖ 585 KB

It has been shown previously that pulse-response expenments on smgle catalyst pellets can provide a srmple, rapId method for determmmg effective dlffuslvlties and adsorption eqmbbnum constants Assumptions were made about boundary conchtions m the earher work m order to slmpllfy the mathematical trea

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✍ K.R. Westerterp; R.A. Loonen; A. Martens 📂 Article 📅 1986 🏛 Elsevier Science 🌐 English ⚖ 416 KB

Temperature overshoots and undershoots were found for a Pd on alumina Catalyst pellet in its course towards a new steady state after a change in concentration of one of the reactants ethylene or hydrogen. When cooling the pellet, aiter heat-up by reaction, with pure hydr0gen.a sudden temperature pea

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✍ Ho-Peng Koh; R. Hughes; P. Harriott 📂 Article 📅 1974 🏛 Elsevier Science 🌐 English ⚖ 647 KB

For rapid reactions the differences in local coefficients of heat and mass transfer around the surface of a catalyst particle lead to a distribution of surface temperatures and an asymmetric internal profile. The nature of these distributions and their changes with flow rate were predicted for the h

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✍ Alena Brunovská 📂 Article 📅 1987 🏛 Elsevier Science 🌐 English ⚖ 618 KB

Existence of multiple steady states and sustained oscillations in catalyst pellet with Dirac delta activity distribution and bimolecular reaction with Langmuir-Hinshelwood rate expression is numerically established. In addition it is shown that deactivation may lead to temporary oscillations.