✦ LIBER ✦

The role of axial dispersion in trickle-flow laboratory reactors

✍ Scribed by David E. Mears

Publisher: Elsevier Science
Year: 1971
Tongue: English
Weight: 342 KB
Volume: 26
Category: Article
ISSN: 0009-2509
DOI: 10.1016/0009-2509(71)80056-8

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✦ Synopsis

Axial dispersion or backmixing appears to be responsible for adverse mass velocity effects observed in trickle-flow laboratory reactors. At low Reynolds numbers typical of bench-scale units, the dispersion problem can be at least an order-of-magnitude more severe in trickle-flow than vaporphase operation.

A simple perturbation criterion is derived for the minimum reactor length required for freedom from significant axial dispersion effects. It shows that the minimum length increases with both conversion and reaction order, and is inversely proportional to the Bodenstein number.

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