Adsorption with chemical reaction in porous catalyst pellets under alternate concentration fields. Uniform temperature case
The work concerns the dynamic behaviour of a porous, isothermal catalyst pellet in which a simultaneous chemical reaction, diffusion and adsorption take place. The impact of the reactant adsorption onto the pellet dynamics was evaluated. A linear isotherm and a non-linear Freundlich isotherm were co...
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| Format: | Article |
| Language: | English |
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Polish Academy of Sciences Committee of Chemical and Process Engineering
2016-12-01
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| Series: | Chemical and Process Engineering |
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| Online Access: | http://www.degruyter.com/view/j/cpe.2016.37.issue-4/cpe-2016-0039/cpe-2016-0039.xml?format=INT |
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| _version_ | 1850273563252097024 |
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| author | Bizon Katarzyna Tabiś Bolesław |
| author_facet | Bizon Katarzyna Tabiś Bolesław |
| author_sort | Bizon Katarzyna |
| collection | DOAJ |
| description | The work concerns the dynamic behaviour of a porous, isothermal catalyst pellet in which a simultaneous chemical reaction, diffusion and adsorption take place. The impact of the reactant adsorption onto the pellet dynamics was evaluated. A linear isotherm and a non-linear Freundlich isotherm were considered. Responses of the pellet to sinusoidal variations of the reactant concentration in a bulk gas were examined. It was demonstrated that the dynamics of the pellet is significantly affected both by accounting for the adsorption and by the frequency of the bulk concentration variations. The sorption phenomenon causes damping of the concentration oscillations inside the pellet and damping of its effectiveness factor oscillations. Depending on the frequency of the concentration oscillations in the bulk, the remarkable oscillations can involve an entire volume of the pellet or its portion in the vicinity of the external surface. |
| format | Article |
| id | doaj-art-b32b36da2e56403d9ef3dc65fff076a1 |
| institution | OA Journals |
| issn | 2300-1925 |
| language | English |
| publishDate | 2016-12-01 |
| publisher | Polish Academy of Sciences Committee of Chemical and Process Engineering |
| record_format | Article |
| series | Chemical and Process Engineering |
| spelling | doaj-art-b32b36da2e56403d9ef3dc65fff076a12025-08-20T01:51:27ZengPolish Academy of Sciences Committee of Chemical and Process EngineeringChemical and Process Engineering2300-19252016-12-0137447348410.1515/cpe-2016-0039cpe-2016-0039Adsorption with chemical reaction in porous catalyst pellets under alternate concentration fields. Uniform temperature caseBizon Katarzyna0Tabiś Bolesław1Cracow University of Technology, Department of Chemical and Process Engineering, ul. Warszawska 24, 31-155 Kraków, PolandCracow University of Technology, Department of Chemical and Process Engineering, ul. Warszawska 24, 31-155 Kraków, PolandThe work concerns the dynamic behaviour of a porous, isothermal catalyst pellet in which a simultaneous chemical reaction, diffusion and adsorption take place. The impact of the reactant adsorption onto the pellet dynamics was evaluated. A linear isotherm and a non-linear Freundlich isotherm were considered. Responses of the pellet to sinusoidal variations of the reactant concentration in a bulk gas were examined. It was demonstrated that the dynamics of the pellet is significantly affected both by accounting for the adsorption and by the frequency of the bulk concentration variations. The sorption phenomenon causes damping of the concentration oscillations inside the pellet and damping of its effectiveness factor oscillations. Depending on the frequency of the concentration oscillations in the bulk, the remarkable oscillations can involve an entire volume of the pellet or its portion in the vicinity of the external surface.http://www.degruyter.com/view/j/cpe.2016.37.issue-4/cpe-2016-0039/cpe-2016-0039.xml?format=INTcatalyst pelletsreactiondiffusionadsorptiondynamics |
| spellingShingle | Bizon Katarzyna Tabiś Bolesław Adsorption with chemical reaction in porous catalyst pellets under alternate concentration fields. Uniform temperature case Chemical and Process Engineering catalyst pellets reaction diffusion adsorption dynamics |
| title | Adsorption with chemical reaction in porous catalyst pellets under alternate concentration fields. Uniform temperature case |
| title_full | Adsorption with chemical reaction in porous catalyst pellets under alternate concentration fields. Uniform temperature case |
| title_fullStr | Adsorption with chemical reaction in porous catalyst pellets under alternate concentration fields. Uniform temperature case |
| title_full_unstemmed | Adsorption with chemical reaction in porous catalyst pellets under alternate concentration fields. Uniform temperature case |
| title_short | Adsorption with chemical reaction in porous catalyst pellets under alternate concentration fields. Uniform temperature case |
| title_sort | adsorption with chemical reaction in porous catalyst pellets under alternate concentration fields uniform temperature case |
| topic | catalyst pellets reaction diffusion adsorption dynamics |
| url | http://www.degruyter.com/view/j/cpe.2016.37.issue-4/cpe-2016-0039/cpe-2016-0039.xml?format=INT |
| work_keys_str_mv | AT bizonkatarzyna adsorptionwithchemicalreactioninporouscatalystpelletsunderalternateconcentrationfieldsuniformtemperaturecase AT tabisbolesław adsorptionwithchemicalreactioninporouscatalystpelletsunderalternateconcentrationfieldsuniformtemperaturecase |