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Mass transfer at high Péclet numbers for creeping flow in a packed-bed reactor

✍ Scribed by Peter Fedkiw; John Newman

Publisher
American Institute of Chemical Engineers
Year
1977
Tongue
English
Weight
844 KB
Volume
23
Category
Article
ISSN
0001-1541

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✦ Synopsis

Abstract

An isotropic, homogeneous packed‐bed reactor is modeled as an array of sinusoidal periodically constricted tubes (PCT). The effective asymptotic bed‐Sherwood number has been calculated for mass transfer at large Péclet number with a constant wall concentration and creeping flow hydrodynamics. The bed friction factor has also been calculated. The results for these macroscopic bed quantities depend upon two ratios of the microscopic PCT period length, average radius, and sinusoidal amptitude.

📜 SIMILAR VOLUMES

Creeping flow mass transfer to a single
Creeping flow mass transfer to a single active sphere in a random spherical inactive particle cloud at high schmidt numbers
✍ Kamalesh K. Sirkar 📂 Article 📅 1974 🏛 Elsevier Science 🌐 English ⚖ 616 KB

Using the solution by Tam of Navier-Stokes equations for creeping flow around an active sphere surrounded by a random cloud of inactive spheres, an asymptotic solution of the convective diffusion equation is obtained for high Schmidt numbers. The Sherwood number for the overall mass transfer coeffic