[PDF] Top 20 Hydrodynamics of Liquid-Solid and Three-Phase Inverse Circulating Fluidized Beds

... no liquid flow condition, it is obvious that the gas holdup is significant lower at the bottom ...increasing liquid velocity, the gas holdup at the bottom increases rapidly and eventually surpass gas holdup ... See full document

... of hydrodynamics (1) in different size LSCFBs and (2) in the same size LSCFBs but with different particle ...the hydrodynamics similarity in the fully developed region, except for the turbulent kinetic ... See full document

... of inverse fluidization, a new type of reactor has been developed in this study, named as the Gas-Driven Inverse Liquid-Solid Fluidized Bed (GDILSFB or GDFB for ...known ... See full document

... the hydrodynamics in spouted bed, including draft tube length (Grbavicic et ...between liquid and solid can affect the hydrodynamics in this ...used three kinds of particles with ... See full document

... such liquid-solid continuous systems require information of phase holdup and flow patterns referred to as the hydrodynamic ...superficial liquid velocity, the auxiliary liquid velocity ... See full document

... the liquid and gas phases are treated as the continuous phases. The solid phase is treated as the discrete phase, and each individual particle is tracked by solving the Lagrangian force ... See full document

... with solid particles in a fluidized ...improves liquid-solid contact in the region far from the tip of the ...on liquid-solid contact in the region near the nozzle ...a ... See full document

... In view of the literature reviews presented in the previous section, several CFD models have been developed to simulate the hydrodynamics of liquid-solid circulating fluidized ... See full document

... an inverse liquid-solid circulating fluidized bed (ILSCFB) system was ...the inverse liquid-solid fluidization under the conventional fluidization regime was also ... See full document

... Non-Agitated Three–Phase reactors with fluidized solids (“Three-Phase Sparged Reactors”) containing mainly slurry bubble column reactors and Three-Phase Fluidized ... See full document

... and liquid flows in an LSCFB which was designed and manufactured in a lab ...a liquid-solids separator, a liquid stream distributor, a dual flipping valve for measuring solids circulation rate and a ... See full document

... various fluidized beds and the regime transitions among ...and circulating turbulent (CTFB) fluidized beds but less similarities between the high-density circulating ... See full document

... a liquid binder of the coke particles aggregates (Gray, 2002); because of that, models with dissolved binders (like the Plexiglas model) have been used to study ...The liquid viscosity of the GA solutions ... See full document

... discrete phase and each particle is tracked by applying the Newton’s second law of motion while the gas phase is treated as a continuum phase for which Navier-Stokes equations are ...gas solid ... See full document

... LLE, liquid liquid extraction; SPE, solid phase extraction; MSPE, magnetic solid phase extraction; DLLME, dispersive liquid-liquid microextraction; SBSE, stir bar ... See full document

... the circulating fluidized bed where only the superficial average gas velocity is ...a fluidized bed (Fournol et ...from fluidized beds (Hazlett, ... See full document

... utilize liquid-injections into a gas-solid fluidized ...of solid coke particles, fluidized by steam and pre-heated to a temperature of about 550◦ C ...hot solid particles and ... See full document

... of solid volume fraction. It shows a low solid volume fraction in the annular region while the regions near to the walls are experiencing high concentration of ... See full document

... swirling fluidized bed which operates with an annular-blade ...swirling fluidized bed was assessed in terms of pressure drop values, minimum fluidization velocity and fluidization quality by physical ... See full document

... transition. Three different flow regimes that are observed are fixed bed, partially fluidized bed and fully fluidized bed in the increasing fluid velocity ... See full document