Photocatalysis for waste gas treatment: kinetics and fluidized bed reactor modeling
dc.contributor.advisor | De Visscher, Alex | |
dc.contributor.author | Karimi Golpayegani, Mojgan | |
dc.date.accessioned | 2017-12-18T21:37:15Z | |
dc.date.available | 2017-12-18T21:37:15Z | |
dc.date.issued | 2008 | |
dc.description | Bibliography: p. 83-89 | en |
dc.description | Some pages are in colour. | en |
dc.description.abstract | The focus of this study is on photocatalysis as a technique for waste gas treatment. In order to have a better understanding of the mechanism of photocatalysis and to solve the deficiencies of previously suggested kinetic models, a model is developed which considers the important role of charge trapping. The proposed kinetic model has a realistic description of the reaction pathways for degradation of trichloroethylene (TCE), an environmentally relevant volatile organic compound (VOC). Moreover, the performance of various kinetic and hydrodynamic models is examined for TCE photocatalysis in fluidized bed reactors (FBR). For the hydrodynamic sub-model, the generalized bubbling/turbulent (GBT) and sequential modular approach are used. The reaction sub-model is performed with some simple kinetic models like 1st order, Langmuir-Hinshelwood, Langmuir-Hinshelwood with UV consideration as well as the more complex ones like Demeestere kinetic model. A modification method, as a tune factor, is proposed to adjust the kinetic parameters for the photocatalytic reactions in an FBR where a larger fraction of the catalyst is illuminated in comparison with fixed bed operation. The results indicate that both hydrodynamic models can give fair agreement with the experimental data when coupled with modified Demeestere kinetic model. Although both hydrodynamic models fail to predict the measured data when combined with simpler kinetic models, GBT can return more reasonable values than the modular approach. Furthermore, GBT together with modified Demeestere kinetic model provides good predictions in a circulating FBR which operates at higher range of gas velocities. | |
dc.format.extent | xii, 89 leaves : ill. ; 30 cm. | en |
dc.identifier.citation | Karimi Golpayegani, M. (2008). Photocatalysis for waste gas treatment: kinetics and fluidized bed reactor modeling (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/1912 | en_US |
dc.identifier.doi | http://dx.doi.org/10.11575/PRISM/1912 | |
dc.identifier.uri | http://hdl.handle.net/1880/102913 | |
dc.language.iso | eng | |
dc.publisher.institution | University of Calgary | en |
dc.publisher.place | Calgary | en |
dc.rights | University of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission. | |
dc.title | Photocatalysis for waste gas treatment: kinetics and fluidized bed reactor modeling | |
dc.type | master thesis | |
thesis.degree.discipline | Chemical and Petroleum Engineering | |
thesis.degree.grantor | University of Calgary | |
thesis.degree.name | Master of Science (MSc) | |
ucalgary.item.requestcopy | true | |
ucalgary.thesis.accession | Theses Collection 58.002:Box 1798 520708961 | |
ucalgary.thesis.notes | UARC | en |
ucalgary.thesis.uarcrelease | y | en |
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