Experimental investigations of slurry bubble column using ultra-fast electron beam x-ray tomography

The hydrodynamic flow behaviour of the gas phase in a slurry bubble column was investigated using ultra-fast electron beam X-ray tomography, which provides images at temporal resolution of 7000fps and spatial resolution of 1 mm. Bubble coalesces and breakup regime was observed with the addition of wettable solids particles. The effect of solid volumetric concentration (0 ≤ Cs ≤ 0.36) on the radial distribution of gas holdup in a slurry bubble column was established at different scanning heights (30, 60, 95 cm) and at different superficial gas velocity (0.02 ≤ UG ≤ 0.05 m/s).