The chemical absorption reaction of CO₂ in a circular bubble column reactor was simulated with an Euler/Lagrange CFD method and results were compared with data from a laboratory scale bubble column. The experimental data comprises gas holdup and bubble size distributions obtained with ultrafast X-ray tomography and hydroxide ion conversion obtained with a wire-mesh sensor. Large Eddy Simulation (LES) is used for calculating the fluid flow and modelling the turbulence in the continuous phase, considering the effect of sub-grid-scale (SGS) turbulence on bubble motion, and also SGS turbulence modification by bubbles. Lagrangian bubble tracking is conducted considering all relevant forces, bubble oscillation via stochastic generation of eccentricity and motion angle and consequently non-steady mass transfer via a dynamic Sherwood number. The comparison of experimental and simulation results shows very good agreement for the given data.

CO ₂的化学吸收反应用Euler / Lagrange CFD方法模拟了在圆泡塔反应器中的反应，并将结果与​​实验室规模的泡塔的数据进行了比较。实验数据包括通过超快X射线断层扫描获得的气体滞留率和气泡尺寸分布，以及通过丝网传感器获得的氢氧根离子转化率。考虑到子网格尺度（SGS）湍流对气泡运动的影响以及气泡对SGS湍流的影响，大涡模拟（LES）用于计算流体流并在连续相中对湍流进行建模。进行拉格朗日气泡跟踪时要考虑所有相关力，通过随机产生偏心率和运动角度而产生的气泡振荡以及因此通过动态Sherwood数进行的非稳定传质。