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In situ detection of coke deposits on fixed-bed catalysts by a radio frequency-based method

Title data

Rauch, Dieter ; Fremerey, Peter ; Jess, Andreas ; Moos, Ralf:
In situ detection of coke deposits on fixed-bed catalysts by a radio frequency-based method.
Universität Bayreuth / Lehrstuhl für Funktionsmaterialien
In: Sensors and Actuators B: Chemical. Vol. 181 (2013) . - pp. 681-689.
ISSN 0925-4005
DOI: https://doi.org/10.1016/j.snb.2013.01.022

Official URL: Volltext

Project information

Project title:
Project's official titleProject's id
No informationMo 1060/5-2
No informationJe 257/12-2

Project financing: Deutsche Forschungsgemeinschaft

Abstract in another language

The aim of this work is to study whether a contactless radio frequency-based method is suitable to monitor both coking and regeneration (coke burn-off) of industrial fixed-bed catalysts directly and in operando. The tubular steel reactor serves as an electromagnetic cavity and two waveguide feeds (coaxial antennas) are used to impress and receive electromagnetic waves between 1 and 20 GHz. Shifts of the resonance frequencies mirror the coke loading in the lowly loaded state and strongly decreasing power transmission over the entire frequency range goes along with increasing coke load at higher coke loadings. Both the locally homogeneously distributed coking process and the coke burn-off process that starts in the reactor front and moves through the reactor can be observed by the radio frequency-based method.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties
Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Chemical Engineering
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
Faculties > Faculty of Engineering Science > Chair Functional Materials > Chair Functional Materials - Univ.-Prof. Dr.-Ing. Ralf Moos
Profile Fields
Profile Fields > Advanced Fields
Profile Fields > Advanced Fields > Advanced Materials
Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Centres > Bayreuth Center for Material Science and Engineering - BayMAT
Research Institutions > Research Units > ZET - Zentrum für Energietechnik
Research Institutions > Research Units
Result of work at the UBT: Yes
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 12 Jan 2015 13:06
Last Modified: 28 Feb 2019 08:41
URI: https://eref.uni-bayreuth.de/id/eprint/5481