The near-wall channelling effect on isothermal constant-pattern adsorption

✍ Scribed by J. Tobiś; D. Vortmeyer

• Book ID: 103008169
• Publisher: Elsevier Science
• Year: 1988
• Tongue: English
• Weight: 616 KB
• Volume: 43
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(88)85109-1

✦ Synopsis

A two-dimensional model of adsorption under isothermal constant-pattern conditions with local equilibrium between phases has been developed for the experimental conditions of Le Van and Vermeulen (1984, A.I.Ch.E. Symp. Ser. No. 233, 80, 34) and integrated numerically. The model includes the radial fluid velocity profile due to porosity variation near the wall. The flow distribution was estimated from the extended Brinkman equation. The analysis of the predicted bulk concentration profile reveals that, although the ratio of adsorber diameter to particle diameter is greater than 100, wall channelling plays a significant role in the adsorber performance in the work of Le Van and Vermeulen.