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Direct sensing of coke deposits on fixed bed catalysts and the modeling of the electrical impedance and reaction kinetics

Title data

Müller, Norbert ; Jess, Andreas ; Moos, Ralf:
Direct sensing of coke deposits on fixed bed catalysts and the modeling of the electrical impedance and reaction kinetics.
2009
Event: 11th International Symposium on CATALYST DEACTIVATION , October 25 - 28, 2009 , Delft, The Netherlands.
(Conference item: Conference , No information )

Abstract in another language

The activity of heterogeneous catalysts in refinery processes is substantially influenced by formation of coke deposits. This study expands an in-situ method for direct determination of the coke loading in fixed bed catalysts by utilizing suspension balance techniques. Here, it is investigated whether it is possible to measure the coke content during coking and regeneration. Applied to a technical relevant Al2O3-based catalyst, it is shown that the electrical impedance of a catalyst pellet is strongly correlated with its degree of coke loading. A model correlates the impedance measurement and reaction kinetic.

Further data

Item Type: Conference item (No information)
Refereed: Yes
Institutions of the University: Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Chemical Engineering > Chair Chemical Engineering - Univ.-Prof. Dr.-Ing. Andreas Jess
Faculties > Faculty of Engineering Science > Chair Functional Materials > Chair Functional Materials - Univ.-Prof. Dr.-Ing. Ralf Moos
Faculties
Faculties > Faculty of Engineering Science > Chair Chemical Engineering
Faculties > Faculty of Engineering Science > Chair Functional Materials
Profile Fields > Advanced Fields > Advanced Materials
Research Institutions > Research Centres > Bayreuth Center for Material Science and Engineering - BayMAT
Profile Fields
Profile Fields > Advanced Fields
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 26 May 2015 06:58
Last Modified: 13 Nov 2015 10:15
URI: https://eref.uni-bayreuth.de/id/eprint/14253