SCI和EI收录∣中国化工学会会刊

›› 2008, Vol. 16 ›› Issue (2): 214-217.

• SEPARATION SCIENCE & ENGINEERING • Previous Articles     Next Articles

Equivalent Cake Filtration Model

XU Tan1, ZHU Qixin1, CHEN Xu1, LI Wenping2   

  1. 1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;
    2. Agrilectric Research Company Lake Charles, LA70615, USA
  • Received:2007-09-11 Revised:2008-02-20 Online:2008-04-28 Published:2008-04-28

Equivalent Cake Filtration Model

徐坦1, 朱企新1, 陈旭1, 李文苹2   

  1. 1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;
    2. Agrilectric Research Company Lake Charles, LA70615, USA
  • 通讯作者: ZHU Qixin,E-mail:qxzhu@eyou.com

Abstract: Cake filtration has been widely used in many chemical processes with more non-Newtonian,highly viscous and compressible materials involved.Neither traditional nor modern filtration theory can be applied in practice."Equivalent cake filtration model"is a recently developed mathematical model to describe cake filtration for both Newtonian and non-Newtonian fluids,in either steady or unsteady filtration stages.This model has two strengths:(1)It can be used to determine equivalent capillary radii and predict filtration quality based on the properties of solid/liquid system and operation parameters;and(2)to calculate cake specific resistance and its variations with time at various cake thickness locations.

Key words: cake filtration, equivalent cake filtration model, specific cake resistance, filtrate rate, filtrate quality, equivalent capillary radii, non-Newtonian filtration

摘要: Cake filtration has been widely used in many chemical processes with more non-Newtonian,highly viscous and compressible materials involved.Neither traditional nor modern filtration theory can be applied in practice."Equivalent cake filtration model"is a recently developed mathematical model to describe cake filtration for both Newtonian and non-Newtonian fluids,in either steady or unsteady filtration stages.This model has two strengths:(1)It can be used to determine equivalent capillary radii and predict filtration quality based on the properties of solid/liquid system and operation parameters;and(2)to calculate cake specific resistance and its variations with time at various cake thickness locations.

关键词: cake filtration, equivalent cake filtration model, specific cake resistance, filtrate rate, filtrate quality, equivalent capillary radii, non-Newtonian filtration