Estimating the overall mass transfer coefficient <tex>$k_{v}$</tex> of the Wheeler-Jonas equation : a new and simple model
Estimating the overall mass transfer coefficient <tex>$k_{v}$</tex> of the Wheeler-Jonas equation : a new and simple model
Faculty of Sciences. Chemistry

article

2000
Thorofare, N.J.
, 2000

Chemistry

Biology

Human medicine

American Industrial Hygiene Association journal. - Thorofare, N.J.

61(2000)
:4
, p. 501-505

0002-8894

1529-8663

000089556400009

E

English (eng)

University of Antwerp

The modified Wheeler-Jonas model is well known for its good prediction of breakthrough times for organic vapors on activated carbon beds. To use this model adequately one must estimate the overall adsorption rate coefficient k(v). In this work a new equation is proposed to calculate k(v). The relevant parameters of this equation are the airstream velocity, the affinity constant beta of the organic vapor, and the mean diameter of the carbon particles. Very accurate predictions were obtained for breakthrough times on a wide range of carbons using the calculated values of k(v). Compared with other models, this model shows a higher accuracy and a lower degree of uncertainty.

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