Premium
Adsorption kinetics for the case of setp and S‐shape isotherms
Author(s) -
Kruglov Alexey V.,
Aris Rutherford
Publication year - 1995
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690411106
Subject(s) - sorption , kinetics , thermodynamics , diffusion , adsorption , chemistry , pellet , flux (metallurgy) , convection , materials science , organic chemistry , physics , composite material , quantum mechanics
The Kinetics of diffusion in a spherical pellet saturated by a sorbate in the presence of an inert component are considered for the case of a step isotherm. A new convective flux inside the pores due to sorption effect has been taken into consideration, and an analytical expression for sorption kinetics is obtained. The convective flux may result in considerable increase in the sorption rate. It is also found that the formula obtained also gives a satisfactory description of sorption kinetics for the case of an S‐shaped isotherm.