超重力旋转床中的传质研究  

Studies on Mass-transfer in a High-gravity Rotating Packed-bed

作　　者：简弃非[1] 邓先和[1] 邓颂九[1] 

机构地区：[1]华南理工大学化学工程研究所,广州510641

出　　处：《化工进展》1996年第6期6-9,65,共5页Chemical Industry and Engineering Progress

摘　　要：超重力旋转床是80年代出现的新型传质设备,该设备利用远大于重力的离心力,极大地强化了气液或液固间的接触,增强了传质效果.在相同的传质条件下,与重力场中的设备相比,该设备的体积小、操作强度大、体积传质系数K_(La)大,可广泛适用于各种气液传质.也适用于液固传质.理论研究由传统的重力作用下的传质发展到超重力场作用下的传质.本文对近年来关于超重力旋转床中的液膜厚度、比表面积、传质系数等的研究结果作了综述、分析和研究.A high-gravity rotating packed-bed which appeared in recent years is a new-type device of mass-transfer. High centrifugal force in the rotating packed-bed leads to larger reduction in the equipment size, higher volumetric mass-transfer coefficients and gas-liquid (or liquid-solid ) contact enhancement compared to that required for equivalent mass-transfer in a gravity flow packed-bed. The conventional theoretics of mass-transfer process has been develeped in high gravity. This paper reviewed the research of the high-gravity rotating packed-bed in recent years.

关 键 词：超重力场 旋转床 传质系数 填料 传质设备 分离 

分 类 号：TQ051.802[化学工程]