Die Modellierung von Stofftransportprozessen in Mehrphasenstro¨ mungen – am Beispiel des Strahlzonen-Schlaufenreaktors
Other Titles
Modeling of mass transfer processes in multiphase flows – using the example of the jet-zone
loop reactor
loop reactor
Publikationstyp
Journal Article
Date Issued
2015-03-06
Sprache
German
Institut
Journal
Volume
87
Issue
5
Start Page
590
End Page
599
Citation
Chemie-Ingenieur-Technik 87 (5): 590-599 (2015-05-01)
Publisher DOI
Scopus ID
Publisher
Wiley-VCH
Abstract The efficiency and selectivity of chemical reactions are influenced by the mixing characteristics of the reactor. Existing models often assume homogeneous mixing on micro scale to calculate the reaction yield. However, neglecting the local hydrodynamic phenomena causes a discrepancy between model calculation and experimental data especially considering mass transfer limited reactions. In two-phase flows different mass transfer phenomena have to be considered: the diffusion in the gas-liquid boundary layer and diffusion in the Batchelor layer. The aim of the paper is to describe the mass transfer affecting mechanisms in multi-phase flows and to discuss the first results of the investigation of local mass transfer phenomena in a two phase flow driven jet-zone loop reactor.
Subjects
Jet-zone loop reactor
Mass transfer
Mass transfer limitation
Multiphase flow
DDC Class
600: Technik