About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Alumina & Bauxite
|
| Presentation Title |
Numerical Study of the Effect of Scale on Heat/Mass Transport and Conversion in Alumina Calcination with a Lab-Scale Reactor for Net-Zero Conditions |
| Author(s) |
Daniel Ang, Patrick Keane, Graham Nathan, Woei Saw |
| On-Site Speaker (Planned) |
Daniel Ang |
| Abstract Scope |
We present a numerical study of a lab-scale drop tube reactor under development that can be configured to generate a wide range of turbulent heat and mass transport conditions in gas atmospheres relevant to both conventional and emerging net-zero alumina calcination reactors, notably in steam-rich conditions. The reactor will be specifically designed to isolate the various stages of heating and calcination, allowing control over heating rates, temperature, and residence time in each stage, notwithstanding its compact scale. The analysis of the particle-laden flow is performed with a combination of zero-dimensional (0D) reactor modelling and computational fluid dynamics (CFD). The system enables kinetic investigations under steady-state conditions in representative gas environments for both conventional and net-zero calcination pathways. The study explores how dimensionless parameters vary with operating conditions across a range of scales, from laboratory configurations to industrially relevant systems. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Extraction and Processing, Modeling and Simulation, Other |