Kinetics and equilibrium of multicomponent adsorption on chiraly templated surfaces

2004 ◽  
Vol 25 (14) ◽  
pp. 1779-1786 ◽  
Author(s):  
Pawe? Szabelski ◽  
Julian Talbot
1988 ◽  
Vol 27 (5) ◽  
pp. 848-851 ◽  
Author(s):  
Renato Rota ◽  
Giuseppe Gamba ◽  
Renato Paludetto ◽  
Sergio Carra ◽  
Massimo Morbidelli

2017 ◽  
Vol 171 ◽  
pp. 426-439 ◽  
Author(s):  
Siwei Guo ◽  
Pranav Vengsarkar ◽  
Jason Bentley ◽  
Mike Weber ◽  
Gaurav Agrawal ◽  
...  

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
H. Nourmoradi ◽  
Mehdi Khiadani ◽  
M. Nikaeen

Multicomponent adsorption of benzene, toluene, ethylbenzene, and xylene (BTEX) was assessed in aqueous solutions by montmorillonite modified with tetradecyl trimethyl ammonium bromide (TTAB-Mt). Batch experiments were conducted to determine the influences of parameters including loading rates of surfactant, contact time, pH, adsorbate concentration, and temperature on the adsorption efficiency. Scanning electron microscope (SEM) and X-ray diffractometer (XRD) were used to determine the adsorbent properties. Results showed that the modification of the adsorbent via the surfactant causes structural changes of the adsorbent. It was found that the optimum adsorption condition achieves with the surfactant loading rate of 200% of the cation exchange capacity (CEC) of the adsorbent for a period of 24 h. The sorption of BTEX by TTAB-Mt was in the order ofB<T<E<X. The experimental data were fitted by many kinetic and isotherm models. The results also showed that the pseudo-second-order kinetic model and Freundlich isotherm model could, respectively, be fitted to the experimental data better than other available kinetic and isotherm models. The thermodynamic study indicated that the sorption of BTEX with TTAB-Mt was achieved spontaneously and the adsorption process was endothermic as well as physical in nature. The regeneration results of the adsorbent also showed that the adsorption capacity of adsorbent after one use was 51% to 70% of original TTAB-Mt.


AIChE Journal ◽  
1991 ◽  
Vol 37 (9) ◽  
pp. 1333-1340 ◽  
Author(s):  
Tingyue Gu ◽  
Gow-Jen Tsai ◽  
George T. Tsao

Sign in / Sign up

Export Citation Format

Share Document