Determination of the desorption branch of the adsorption isotherm of vapors by their continuous desorption under dynamic conditions

Author(s):  
G. I. Fedorov ◽  
R. I. Izmailov
1993 ◽  
Vol 8 (04) ◽  
pp. 259-264 ◽  
Author(s):  
G.R. Luke ◽  
H.C. Juvkam-Wold

Catalysts ◽  
2015 ◽  
Vol 5 (2) ◽  
pp. 653-670 ◽  
Author(s):  
Abdelhamid Korrir ◽  
Achraf Kasmi ◽  
Mhamed Assebban ◽  
Ahmed Souikny ◽  
Soukaina Haffane ◽  
...  

1999 ◽  
Vol 77 (10) ◽  
pp. 1594-1598 ◽  
Author(s):  
Chakib Ameziane Hassani ◽  
Hugues Ménard

A study by high performance liquid chromatography of adsorption isotherm of HAP in toluene on Al(OH)3 heated between 25 and 700°C shows that the rate of adsorption is maximal on the Al(OH)3 heated at 300°C. The measurement of electrokinetic potential and the surface area of adsorbants approve this result. The determination of adsorption enthalpies of different HAP on the aluminium hydroxide has shown the existence of physical adsorption. The adsorbing power of Al(OH)3 heated at 300°C is compared with that of other materials known or suspected very carcinogens.Key words: adsorption isotherm of HAP, aluminium hydroxide.


2017 ◽  
Vol 1 ◽  
pp. 12-18
Author(s):  
Ksenia Naumenko ◽  
Natalia Frolova ◽  
Oksana Petrusha ◽  
Natalia Chepel

The article analyzes the possibility of gas chromatography use for determination of sorption capacity of adsorbents on the example of activated carbon BAC-A. The offered method provides the use of gas chromatograph with flame-ionizing detector and with nozzle geyser that is filled with studied adsorbent. At that the isotherms of absorption of substance are constructed by manifestation curve – desorption branch of substance peak on chromatogram. As a result the isotherms of absorption of isoamylol and camphor on activated carbon were constructed and the values of specific sorption capacity for these substances were calculated. This method allows receive fast and precisely the data about absorption characteristics of adsorbent and also adapt the conditions of the study using gas chromatography to the real conditions of adsorption of substances by studied adsorbent (temperature, adsorbent concentration in vapor phase and so on).


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