Single-Component Equilibrium Isotherms

2 Models of Adsorption Isotherms in Liquid-Solid Equilibria.80 

1 Isotherm Models for Ideal Adsorption on Homogeneous Surfaces. 81 

3 Isotherm Models for Nonideal Adsorption on a Homogeneous Surface. 98 

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Figure 3.13 Single-component equilibrium isotherms for (R)- and (S)- Propranolol on immobilized Cel-7A at increasing pH. Symbols experimental data, o R- and S-enantiomers. Lines best bi-Langmuir isotherms (dashed for R-, solid for S-enantiomer). Left Low concentration data (in iM). pH-values (1) 4.72, (2) 4.98, (3) 5.21, (4) 5.49, (5) 5.70, and (6) 5.93. Right High concentration data (in mM). Reproduced with permission from T. Fomstedt, G. Got-mar, M. Andersson, G. Guiochon, J. Am. Chem. Soc., 121 (1999) 1164 (Figs. 6a, 6c). 1999, American Chemical Society.

Single-component equilibrium isotherms are commonly measured by gravimetric or piezometric methods (see Fig. 9). An alternative technique based... 

FIGURE 8.8. Comparison of (a) single-component equilibrium isotherms for C2H on 13X sieve and (b) binary isotherms for CO-CH4 on activated carbon, as determined by static and chromatographic methods. (From ref. 6, reprinted with permission.)... 

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