## Abstract Gas-liquid reaction carried out in an internal loop airlift reactor was modelled and subjected to the scale-up procedure. Homogeneous oxidation of glucose to gluconic acid catalyzed by Gluzyme 10000 BG, a commercial product containing the enzymes glucose oxidase and catalase as active c
Modeling of enzymatic reaction in an airlift reactor using an axial dispersion model
✍ Scribed by Ivan Sikula; Jozef Markoš
- Book ID
- 111491099
- Publisher
- Versita
- Year
- 2008
- Tongue
- English
- Weight
- 252 KB
- Volume
- 62
- Category
- Article
- ISSN
- 0366-6352
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✦ Synopsis
Abstract
This work was focused on modeling of biochemical processes in a 40-L internal-loop airlift reactor. Due to different mixing in the specific zones of the reactor four main sections, bottom, riser, separator and downcomer, were recognized. Each zone was modeled by an adequate mixing model: bottom and separator sections by the model of ideally-stirred reactor; riser and downcomer sections by the model of plug-flow reactor with axial dispersion. In the model, the effects of mass transfer, hydrodynamics, and reaction kinetics were taken into account. The model of the reactor was experimentally verified by the aerobic enzymatic oxidation of glucose to gluconic acid. Simulations are in good agreement with experimental data.
📜 SIMILAR VOLUMES
Axial dispersion in the riser, downcomer and gas-disengagement section of an airlift-loop reactor (ALR) with an external loop was estimated and expressed by the Bodenstein number (Bo). In contrast to existing methods, the newly developed procedure yields reliable results for the individual sections.