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- Title
Computational modeling of batch stirred tank reactor based on spherical catalyst particles.
- Authors
Baronas, Romas; Kulys, Juozas; Petkevičius, Linas
- Abstract
This paper presents a model of a batch stirred tank reactor with spherical catalyst particles as microreactors. The model involves three regions: an array of porous enzyme-loaded microreactors where enzyme reaction as well as mass transfer by diffusion take place, a diffusion limiting region surrounding the particles and a convective region where the substrate is of uniform concentration. The microbioreactors are mathematically modeled by a two-compartment model based on reaction-diffusion equations containing a nonlinear term related to the Michaelis-Menten enzyme kinetics. The influence of the physical and kinetic parameters of the microbioreactors on the transient effectiveness of the bioreactor system is numerically investigated in a wide range of model parameters. The numerical simulation was carried out using the finite difference technique. The simulation results show non-monotonic effect of the initial substrate concentration and nonlinear effects of the internal and external diffusion limitations as well as adsorption capacity of the microreactors on the transient effectiveness.
- Subjects
BATCH reactors; CATALYSTS; BIOREACTORS; COMPUTER simulation; ENZYME kinetics; MASS transfer
- Publication
Journal of Mathematical Chemistry, 2019, Vol 57, Issue 1, p327
- ISSN
0259-9791
- Publication type
Academic Journal
- DOI
10.1007/s10910-018-0954-x