Experimental concentration dependence of surface diffusivity of hydrocarbons in activated carbon

Hu X., Do D.D. and Rao G.N. (1994) Experimental concentration dependence of surface diffusivity of hydrocarbons in activated carbon. Chemical Engineering Science, 49 13: 2145-2152. doi:10.1016/S0009-2509(94)85059-3


Author Hu X.
Do D.D.
Rao G.N.
Title Experimental concentration dependence of surface diffusivity of hydrocarbons in activated carbon
Journal name Chemical Engineering Science   Check publisher's open access policy
ISSN 0009-2509
Publication date 1994
Sub-type Article (original research)
DOI 10.1016/S0009-2509(94)85059-3
Volume 49
Issue 13
Start page 2145
End page 2152
Total pages 8
Subject 1500 Chemical Engineering
Abstract A new procedure is introduced to a differential adsorption bed (DAB) to determine the intrinsic concentration dependence of the surface diffusivity of hydrocarbons in activated carbon. The DAB is operated under a small change in bulk concentration that the adsorbed concentration is nearly constant during the adsorption process. The intrinsic surface diffusivity is then determined by analysing the experimental data using a pore and surface diffusion model. Experimental results show a much stronger concentration dependence of the surface diffusivity than that predicted by a Darken relationship in the studies of ethane and propane adsorption in Ajax-activated carbon. The effect of adsorption equilibrium equations on the prediction of the intrinsic surface diffusivity is also studied.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
 
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Citation counts: TR Web of Science Citation Count  Cited 26 times in Thomson Reuters Web of Science Article | Citations
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