Modeling of fouling on packings in absorption columns

Autor: Karlheinz Schaber, Arthur Heberle
Rok vydání: 2002
Předmět:
Zdroj: AIChE Journal. 48:2722-2731
ISSN: 1547-5905
0001-1541
DOI: 10.1002/aic.690481203
Popis: A model describing the fouling in irrigated columns with random packings was applied successfully to the description of the increase in pressure drop when fouling occurs during the absorption of CO 2 in a suspension of Ca(OH) 2 . It is based on the Darcy-Weisbach law and the channel model. A mass balance around a fouling layer on the packings leads to a time-dependent equation including the hydraulic radius from the channel model. A removal term is introduced in the fouling model. To approach the experimental results, the removal term had to be extended by an empirical parameter. It can be interpreted as a removal efficiency factor and is obtained by easy numerical fitting.
Databáze: OpenAIRE