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Investigation of Benzene Vapors Adsorption by Activated Carbons AR-A, AR-B and Baojun Activated Carbon’s Coals

Authors: Kasatkin E.M., Akhmedova L.S., Markova E.B., Boldyrev V.S., Averina Yu.M., Cherednichenko A.G. Published: 10.08.2022
Published in issue: #4(103)/2022  
DOI: 10.18698/1812-3368-2022-4-110-124

 
Category: Chemistry | Chapter: Physical Chemistry  
Keywords: gas adsorption, activated carbon, volatile organic compounds, purification of gas emissions, environmental protection

Abstract

We presented the results of a study of the adsorption capacity of domestic activated carbon grades AR-A and AR-B, and a coal from Baojun Activated Carbon (China) with respect to benzene vapor. All used adsorbents are designed to purify air from vapors of volatile organic compounds, but differ in production technology and physicochemical characteristics. It has been established that the efficiency of Baojun Activated Carbon’s activated carbon in the adsorption of benzene vapor is higher than that of domestic samples of AR-A and AR-B grades. At the same time, among foreign-made coal, the most effective sample was Baojun 4.0/90, which has a high adsorption capacity, declared in relation to carbon tetrachloride vapor. It has been experimentally shown that in all cases the kinetics of the adsorption process is well described by the Ho and MacKay pseudo-second order equation. Similar results were obtained using the Morris --- Weber model, which takes into account the role of diffusion processes in the adsorption of benzene vapor by activated carbons. The use of the Lagergren equation and the simplified Elovich model for processing experimental data showed less significant results

This work has been supported by the RUDN University Strategic Academic Leadership Program

Please cite this article in English as:

Kasatkin E.M., Akhmedova L.S., Markova E.B., et al. Investigation of benzene vapors adsorption by activated carbons AR-A, AR-B and Baojun Activated Carbon’s coals. Herald of the Bauman Moscow State Technical University, Series Natural Sciences, 2022, no. 4 (103), pp. 110--124 (in Russ.). DOI: https://doi.org/10.18698/1812-3368-2022-4-110-124

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