Authors:
A. Mianowski Silesian Technical University Department of Inorganic Chemistry and Technology B. Krzywoustego Street 6 44-100 Gliwice Poland

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Aleksandra Marecka AGH-University of Science and Technology Faculty of Fuels and Energy Mickiewicza Av. 30 30-059 Kraków Poland

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Abstract  

Using the earlier theoretical achievements, it was possible to elaborate a full description of adequate transport properties, including the determination of activation energy for the sorption of such gases as CO2 and CH4 on coal, as well as the formulation of model solutions. The interrelation of the kinetic-diffusion parameters was also demonstrated. We then analyse the experimental kinetic curve over the entire time range with a constant of a kinetic character and with the application of two typical solutions of Fick’s law, for fast and slow processes. These three constants may be compared with one another, since they are expressed using the same unit, and, in effect, may be used to determine the isokinetic effect. Finally, we suggest a new approach to the estimation of the activation energy, despite the fact that the measurements were performed at two close temperatures, 293 and 303 K. In the presented investigations, the isokinetic effect for sorption process has been found to be statistically less significant when compared with that of chemical reactions/processes.

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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