Tomography measurements of gas holdup in rotating foam reactors with Newtonian, non-Newtonian and foaming liquids

A noninvasive X-ray technique for determination of liquid holdup in a rotating packed bed

“…Moreover, the technique has been employed to observe multiphase flow characteristics in fluidized beds (Kai, 2000;Grassler, 2000), slurry bubble columns (Rabha et al, 2013), monolith reactor (Al-Dahhan et al, 2006), stirred-tank reactor (Ford et al, 2008) and ϲ etc. In particular, on the basis of previous studies on a rotating foam reactor using CT technique (Tschentscher et al, 2011 andLeon et al, 2013), it is supposed that this technique is also applicable to RPBs. Both RPB and the rotating foam reactors can intensity mass transfer by high centrifugal force (Tschentscher et al, 2010).…”

Liquid holdup and wetting efficiency in a rotating trickle‐bed reactor

“…Surfactant is commonly used as emulsifier and humectant in chemical industry. As a result, its influence on the hydrodynamics of the reactor cannot be ignored . As presented in Figure d, the external liquid holdup increased by adding sodium dodecyl benzene sulfonate (SDBS).…”

Preparation and characterization of Pd/Al2O3 catalysts on aluminum foam supports for multiphase hydrogenation reactions in rotating foam reactors

“…In Leon et al (2012a) the liquid-solid mass transfer coefficients of foam catalysts were compared with a 50 m slurry catalyst using the hydrogenation reaction of styrene as a test reaction, reporting a higher k LS than a slurry catalyst. More in-depth hydrodynamic studies by applying tomographical methods are carried out by Tschentscher et al (2011Tschentscher et al ( , 2013. Another configuration of the rotating foam reactors was presented by Leon et al (2013).…”