Trickle bed mechanistic model for (non-)Newtonian power-law foaming liquids

摘要: Abstract Physical models for the description of hydrodynamics trickle-bed reactors foaming Newtonian and power-law liquids are virtually inexistent in literature. An attempt is made this work to develop a hydrodynamic model cocurrent gas–liquid downflow involving (non-)Newtonian through packed beds at non-ambient temperatures moderate pressures. The was an extension well-trodden slit variants proposed coalescing -liquid systems. Its validation using recently published experimental data [Aydin, B., Larachi, F., 2008. Trickle bed conditions. Chem. Eng. J. 143, 236–243.] allowed quantitative representation flow terms two-phase pressure gradient liquid holdup up 90 °C 0.7 MPa. model, requiring no arbitrary adjustable parameters, addition related foam stability descriptors such as liquid-film-borne bubble diameter, free (or headspace)-gas holdup. also exhibited logical fully interpretable trends with regard stability, reactor temperature pressure, gas superficial velocities.