Bubble columns are widely used across a range of industries. A number of flow regimes can
arise but their identification in practice is very challenging. An electrical capacitance …

Highlights•Multiphase chemical reactors manifest multi-scale flow structures.•These
structures form at small scale and grow, and affect reactor performance.•Process …

Radioactive isotopes, particularly in the form of radiotracers and radioactive sealed sources,
have been used over a broad spectrum of process industries for equipment and process …

Abstract Radioactive Particle Tracking (RPT) is a powerful advanced technique for studying
the solid motion within industrial scale multiphase reactors. However, it is rather difficult to …

For years, conventional X-ray tomography has been used successfully to study the flow
structures of vertical two-phase gas-solid flows. As a result, the different flow structures of …

Particle size distribution (PSD) has a significant impact on the performance of fluidized bed
reactors due to uneven distribution in the segregation and mixing phenomena. This paper …

Shadow imaging is used for the investigation of bubbly gas–liquid two-phase flow in a
porous structure. The porous structure is made of Somos^\textregistered® WaterShed XC …

We report experimental observations of the dynamic behavior of single, magnetically tagged
3–4 mm particles varying in density from 0.55 g/cm3 to 1.2 g/cm3 as they migrate freely in a …

An experimental study was performed to investigate the effect of sieve trays on the time-
averaged gas holdup profiles and the overall gas holdup in a cold-flow bubble column that …

This study focuses on the fluid dynamics in the riser of liquid-solid circulating fluidized bed
reactors. Liquid-solid circulating fluidized beds are used for reactions that utilize a liquid …