Measurement of the single-component adsorption kinetics of ethane, butane and pentane onto activated carbon using a differential adsorption bed

1991 ◽  
Vol 30 (6) ◽  
pp. 1262-1270 ◽  
Author(s):  
P. L. J. Mayfield ◽  
D. D. Do
2011 ◽  
Vol 374-377 ◽  
pp. 1127-1131
Author(s):  
Li Cao ◽  
Xue Min Huang ◽  
Feng Li Ji

The single-component adsorption equilibrium of VOCs on activated carbon was studied. Results show that the adsorption isotherms of benzene, toluene, ethyl acetate and acetone on activated carbon all fall into type I, according with the characteristics of micropore volume filling, and the Langmuir equation proves to be the best for the fitting of experiments data. The adsorption equilibrium of different adsorbates on the same adsorbent can be predicted by the D-R equation with affinity coefficients, and the prediction precision depends on the calculation method of affinity coefficients. Of the three calculation methods, the method of molar volume is the most precise, secondly the method of parachors, and thirdly the method of molecular polarizability, with average errors 5.9%,10.2% and 27.8% respectively.


Author(s):  
Arnelli ◽  
WP Aditama ◽  
Z Fikriani ◽  
Y Astuti

2019 ◽  
Vol 207 (5) ◽  
pp. 705-721 ◽  
Author(s):  
R. Leyva-Ramos ◽  
R. Ocampo-Pérez ◽  
I. Bautista-Toledo ◽  
J. Rivera-Utrilla ◽  
N. A. Medellín-Castillo ◽  
...  

2014 ◽  
Vol 92 (5) ◽  
pp. 392-396
Author(s):  
Igor Winkler ◽  
Volodymyr Diychuk

An experimental investigation of adsorption of toluene from the aqueous phase on medicinal activated carbon revealed that the process runs by the mechanism of preactivated adsorption. Kinetics of the initial stages of adsorption can be adequately represented by the empirical Elovich adsorption model. An insufficient amount of the adsorbent can cause an unexpected jump in the toluene equilibrium concentration in water caused by transferring this substance from the toluene phase into water through the process of additional adsorption on the coal surface. Adsorption constants and “imaginary” adsorption values have been determined for a series of toluene contents.


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