The experimental study on hydrodynamics,axial mixing and mass transfer has been carried out in anewly developed liquid-liquid contactor,the open turbine rotating disc contactor(OTRDC).It has been foundthat the OTRDC i...The experimental study on hydrodynamics,axial mixing and mass transfer has been carried out in anewly developed liquid-liquid contactor,the open turbine rotating disc contactor(OTRDC).It has been foundthat the OTRDC is possible to be operated with higher hold-up of dispersed phase,larger interface and hencehigher efficiency of mass transfer comparing with the ordinary RDC.In correlating axial mixing data,a combinedmodel has been used in which both forward mixing due to the drop size distribution and backmixingof droplets are taken into account.The RTD curves of dispersed phase predicted by the model were fit wellwith the experimental data.The comparison of the experimental mass transfer data with thosc predicted by theaxial mixing model and theoretical single drop models shown they are in good agreement.展开更多
A number of experiments regarding hydrodynamics have been carried out in the open turbinerotating disc contactor using quartz particles as solid phase,tap water and kerosene as liquid phase.Flooding phenomenon has bee...A number of experiments regarding hydrodynamics have been carried out in the open turbinerotating disc contactor using quartz particles as solid phase,tap water and kerosene as liquid phase.Flooding phenomenon has been observed.The variables studied include the rotor speed,compartment heigh,stator ring opening,column diameter and the superficial velocity of eachphase Correlations for predicting the solid phase holdup and characteristic velocity have been devel-oped.In comparison with liquid-liquid system,the presence of solid particles will result in higherdispersed phase holdup but lower characteristic velocity and total throughput.展开更多
文摘The experimental study on hydrodynamics,axial mixing and mass transfer has been carried out in anewly developed liquid-liquid contactor,the open turbine rotating disc contactor(OTRDC).It has been foundthat the OTRDC is possible to be operated with higher hold-up of dispersed phase,larger interface and hencehigher efficiency of mass transfer comparing with the ordinary RDC.In correlating axial mixing data,a combinedmodel has been used in which both forward mixing due to the drop size distribution and backmixingof droplets are taken into account.The RTD curves of dispersed phase predicted by the model were fit wellwith the experimental data.The comparison of the experimental mass transfer data with thosc predicted by theaxial mixing model and theoretical single drop models shown they are in good agreement.
文摘A number of experiments regarding hydrodynamics have been carried out in the open turbinerotating disc contactor using quartz particles as solid phase,tap water and kerosene as liquid phase.Flooding phenomenon has been observed.The variables studied include the rotor speed,compartment heigh,stator ring opening,column diameter and the superficial velocity of eachphase Correlations for predicting the solid phase holdup and characteristic velocity have been devel-oped.In comparison with liquid-liquid system,the presence of solid particles will result in higherdispersed phase holdup but lower characteristic velocity and total throughput.
