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Chaos in catalyst pores : Can we use it for process development?

Title data

Blümich, Bernhard ; Datsevich, Leonid ; Jess, Andreas ; Oehmichen, Thomas ; Ren, Xiaohong ; Stapf, Siegfried:
Chaos in catalyst pores : Can we use it for process development?
In: Chemical Engineering Journal. Vol. 134 (2007) Issue 1–3 . - pp. 35-44.
ISSN 1385-8947
DOI: https://doi.org/10.1016/j.cej.2007.03.058

Official URL: Volltext

Abstract in another language

Since 1939 when Thiele and Zeldovich developed a theory devoted to the reaction mechanism in a catalyst particle, nothing has disturbed the scientific paradigm in catalysis. In multiphase reactions, as is widely accepted, liquid occupies catalyst pores, remaining an immovable medium through which the reacting compounds “slowly” diffuse to active centres where the reaction takes place. Some years ago, it was predicted that in gas–liquid/liquid reactions with gas or heat evolution, liquid could chaotically move in catalyst pores with velocities up to 300 m/s causing a great impact on the reaction performance in a catalyst particle and a reactor. The present paper deals with some experimental confirmation of the oscillatory mechanism and illustrates some phenomena that can purposefully be used for process and catalyst development.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: Multiphase (gas–liquid–solid/liquid–solid) reactions; Oscillation theory; Internal mass transfer; NMR imaging; Catalyst engineering
Institutions of the University: 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
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
600 Technology, medicine, applied sciences > 600 Technology
600 Technology, medicine, applied sciences > 620 Engineering
600 Technology, medicine, applied sciences > 660 Chemical engineering
Date Deposited: 27 Apr 2015 06:34
Last Modified: 27 Apr 2015 06:34
URI: https://eref.uni-bayreuth.de/id/eprint/11167