Turbulent mass transfer model for simulating protein desorption in liquid-solid circulating fluidized bed risers  

作　　者：Panfeng Ren Yawen Zhang Wenbin Li Kuotsung Yu 

机构地区：[1]Collaborative Innovation Center of Chemical Science and Engineering(Tianjin),School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China [2]State Key Laboratory of Chemical Engineering,School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China

出　　处：《Particuology》2021年第4期167-175,共9页颗粒学报（英文版）

基　　金：This work was supported by the Open Foundation of State Key Laboratory of Chemical Engineering(No.SKL-ChE-19B04).

摘　　要：An integrated model,namely the two-equation turbulent model,is introduced to simulate mass transfer in a liquid-solid circulating fluidized bed(LSCFB)riser.Protein desorption is simulated and the proposed model is validated.The protein concentration profiles simulated with this model agree well with published experimental results.This model enables direct determination of turbulent mass diffusivity,removing the need to empirically guess a constant turbulent Schmidt number for simulating mass transfer in a turbulent flow.This model is useful when the turbulent mass diffusivity is not available for simulating mass transfer in an LSCFB riser.

关 键 词：Liquid-solid circulating fluidized bed Simulation Turbulent mass diffusivity Ion exchange Protein recovery 

分 类 号：TQ051.13[化学工程]