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Title: Characterizations of activated carbon-methanol adsorption pair including the heat of adsorptions
Authors: Wu, Jun W.
Madani, S. Hadi
Biggs, Mark J.
Phillip, Phillip
Lei, Chen
Hu, Eric J.
Issue Date: 2015
Publisher: © American Chemical Society
Citation: WU, J.W. ...et al., 2015. Characterizations of Activated Carbon-Methanol Adsorption Pair Including the Heat of Adsorptions. Journal of Chemical and Engineering Data, 60(6), pp. 1727-1731.
Abstract: This paper presents adsorption isotherms and isosteric heats of adsorption for methanol vapor adsorption for two commercially available activated carbon samples - 207EA granules and WS-480 pellets (Calgon Carbon, U.S.A.) - which were also fully characterized using nitrogen sorption at 77 K. The heat of adsorption of methanol as a function of loading was determined using the Clausius-Clapeyron approach with isotherms obtained at 5 °C, 15 °C, and 25 °C. The isosteric heats of adsorption increased sharply at the small coverage due to increasing effect of condensation heat with coverage. The heat reached a maximum and then varies little with loading, with the average values at around 46.6 kJ/mol for 207EA and 45.1 kJ/mol for WS-480. The higher heats of adsorption for the former activated carbon reflect its more microporous nature (around 78 % compare to 62 % for WS-480 activated carbon). The heat of adsorption data is also comparable to that obtained elsewhere for other activated carbons.
Description: This paper is in closed access.
Sponsor: This work was supported by an Australian Research Council (ARC) and Orlando Wines Pty Ltd., Linkage Grant under the project no. LP12020035
Version: Published
DOI: 10.1021/je501113y
URI: https://dspace.lboro.ac.uk/2134/20033
Publisher Link: http://dx.doi.org/10.1021/je501113y
ISSN: 0021-9568
Appears in Collections:Closed Access (Chemistry)

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