Solid Dispersion in the Slurry Reactor with Multiple Impellers
19th International Conference on Chemical Reactors
05-09 Sep 2010
Chemical Engineering Journal
, E-ISSN: 1873-3212
||Axial dispersion of solid catalyst, Computational fluid dynamics, Impeller, Mixture model of multiphase flow, Slurry reactor
Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, pr. Lavrentieva 5, 630090 Novosibirsk, Russia
A whole series of significant catalytic processes are carried out in a slurry reactor with multiple impellers. The selective hydrogenation of sunflower seed oil is the characteristic example of such a process. The liquid phase is the main medium into stirred tank and an investigation of a fluid dynamics of one just as transient regime of solid distribution in liquid volume could be helpful to practical application.
In the present work, CFD simulations have been carried out to study solid distribution in liquid–solid stirred tank using Mixture multifluid approach along with standard k−ɛ turbulence model. A multiple frame of reference (MFR) and Sliding Mesh Model have been used to model the multiple impellers and tank region. The effects of specific density of fine-dispersed solid phase and place of injection of solid have been investigated for “steady-state” and time-depended cases.