Study of frontal analysis by characteristic point
1982; Elsevier BV; Volume: 244; Issue: 1 Linguagem: Inglês
10.1016/s0021-9673(00)80118-1
ISSN1873-3778
AutoresJan‐Chan Huang, Daniel Rothstein, Baogang Wu, R. Madey,
Tópico(s)Spectroscopy and Chemometric Analyses
ResumoAn analytical solution is derived for the desorption of an adsorbate that obeys a Langmuir isotherm and diffuses at a finite rate. The solution is integrated to give the adsorption isotherm by the technique of frontal analysis by characteristic point. The results indicate that the integration procedure does not yield the real isotherm for a system with a finite diffusion rate. The ratio of the equilibrium speed to the elution speed is given as a criterion for deviation from the real isotherm. An experimental result is given to show the deviation of the measurement of the adsorption isotherm of ethane on activated carbon.
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