Multicomponent adsorption of ethane, n-butane and n-pentane in activated carbon
1991; Elsevier BV; Volume: 5; Issue: 1 Linguagem: Inglês
10.1016/0950-4214(91)80047-9
ISSN1873-3786
AutoresD.D. Do, Xijun Hu, P. L. J. Mayfield,
Tópico(s)Adsorption, diffusion, and thermodynamic properties of materials
ResumoA model of combined pore and surface diffusivity, with the surface diffusivity following the Darken-type relationship, is presented in this paper. The model is tested with single component adsorption data of ethane, n-butane and n-pentane onto activated carbon, and with binary adsorption data of ethane/n-butane, ethane/n-pentane and n-butane/n-pentane. The experimental data are obtained using a differential adsorption bed, which is found to be a very useful device in studying dynamics of multicomponent systems., Comparison of this model with a model assuming constant surface diffusivity shows that the proposed model herein is a superior model in predicting the multicomponent adsorption dynamics data.
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