Adsorption in Perfect Mixing Tank – Comparison of Exact and Approximate Kinetic Models

• Autorzy: Kupiec K. , Gwadera M. , Larwa B.

Identyfikatory

DOI

10.2478/cpe-2014-0021

• Języki publikacji: EN

Abstrakty

EN

Periodic adsorption in a perfect mixing tank of a limited volume was considered. It was assumed that the adsorption rate is limited by diffusion resistance in a pellet. The approximate model of diffusion kinetics based on a continued fraction approximation was compared with the exact analytical solution. For the approximate model an algorithm was developed to determine a temporal variation of the adsorbate concentration in the pellet. The comparison was made for different values of the adsorbent load factor. In the numerical tests different shapes of pellets were considered. Both the numerical tests as well as our own experimental results showed that the approximate model provides results that are in good agreement with the exact solution. In the experimental part of this work adsorption of p-nitrophenol and acetic acid from aqueous solutions on cylindrical pellets of activated carbon was conducted.

Słowa kluczowe

EN

approximate kinetic equation; adsorption in vessel

PL

przybliżone równanie kinetyczne; adsorpcja w naczyniu

• Wydawca: Komitet Inżynierii Chemicznej i Procesowej Polskiej Akademii Nauk
• Czasopismo: Chemical and Process Engineering
• Rocznik: 2014
• Tom: Vol. 35, nr 3
• Strony: 277--291
• Opis fizyczny: Bibliogr. 10 poz., rys.

Twórcy

autor

Kupiec K.

• Cracow University of Technology, Faculty of Chemical Engineering and Technology, ul. Warszawska 24, 31-155 Kraków, Poland

autor

Gwadera M.

• Cracow University of Technology, Faculty of Chemical Engineering and Technology, ul. Warszawska 24, 31-155 Kraków, Poland

autor

Larwa B.

• Cracow University of Technology, Faculty of Chemical Engineering and Technology, ul. Warszawska 24, 31-155 Kraków, Poland

Bibliografia

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