Influence of Humidity on Adsorption Capacity from the Wheeler-Jonas Model for Prediction of Breakthrough Times of Water Immiscible Organic Vapors on Activated Carbon Beds
- 1 September 1999
- journal article
- research article
- Published by Taylor & Francis in Aihaj Journal
- Vol. 60 (5) , 612-617
- https://doi.org/10.1080/00028899908984480
Abstract
The Wheeler-Jonas model is well known for its good prediction of breakthrough times for organic vapors on activated carbon beds. However, in its original form it is only valid under dry conditions: no prewetting of the filter and no humidity in the ambient air during use. The main parameter in the Wheeler-Jonas equation is the adsorption capacity, We. By measuring over 200 breakthrough times, with 7 different vapors on 3 different types of activated carbon, a satisfactory model for the influence of moisture on We was established. The only supplementary information needed, compared with the application of the Wheeler-Jonas equation under dry circumstances, is the water isotherm of the activated carbon.Keywords
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