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We present an analysis of a lab-scale drop-tube reactor under development that can be configured to generate a range of turbulent heat and mass transport relevant to both conventional and emerging net-zero calcination reactorsCalcination reactor, notably including steam-rich atmospheres. The reactor will be configured to isolate the various stages of heating and calcinationCalcination reactions with respect to temperature, residence time and atmospheric composition, despite its compact scale. Dimensionless analysis using Reynolds and Damköhler numbers identifies the operational regimes, while zero-dimensional (0-D) modelling and computational fluid dynamics (CFDComputational Fluid Dynamics (CFD)) provide complementary performance estimates. The combined approach demonstrates that the reactor can span operating windows of industrial relevance without replicating full-scale calcinersCalciners, establishing a robust platform to quantify the relationship between turbulent transport and reaction time scales and to generate data that complements Thermogravimetric analysis (TGA) and plant measurementsMeasurements.

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Reynolds–Damköhler Framework for the Development of a Lab-Scale Reactor for Alumina Calcination in Emerging Net-Zero Reactor Environments

  • 会议论文

  • 发表日期：

    2026年

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  • Daniel J. T. Ang,
  • Patrick F. Keane,
  • Graham J. Nathan,
  • Woei L. Saw

摘要

We present an analysis of a lab-scale drop-tube reactor under development that can be configured to generate a range of turbulent heat and mass transport relevant to both conventional and emerging net-zero calcination reactorsCalcination reactor, notably including steam-rich atmospheres. The reactor will be configured to isolate the various stages of heating and calcinationCalcination reactions with respect to temperature, residence time and atmospheric composition, despite its compact scale. Dimensionless analysis using Reynolds and Damköhler numbers identifies the operational regimes, while zero-dimensional (0-D) modelling and computational fluid dynamics (CFDComputational Fluid Dynamics (CFD)) provide complementary performance estimates. The combined approach demonstrates that the reactor can span operating windows of industrial relevance without replicating full-scale calcinersCalciners, establishing a robust platform to quantify the relationship between turbulent transport and reaction time scales and to generate data that complements Thermogravimetric analysis (TGA) and plant measurementsMeasurements.