摘要
采用氮气-水脱氧实验体系,在常温常压下、转子转速(N)为500～1450r·min-1、水流量(L)为0.1～0.5m3·h-1,气量(G)为0.2～1.0m3·h-1的条件下考察了不同内部结构对定-转子反应器传质性能的影响,建立了液相体积传质系数关联式,计算结果与实验结果拟合较好。研究结果表明:不同的内部结构定-转子反应器内,液相体积传质系数Kxa均随着液量、气量、转速的增大而增大,脱除率ε随着气量、转速的增加而增大,随着液量的增加而降低。但相比较而言,SS-RH和SC-RH这两种组合的定-转子反应器传质性能较好。
The gas-liquid mass transfer characteristics ofrotor-stator reactors （RSR） constructed with different combinations of rotors and stators with different structures were investigated by deoxidization of water with N2. The experimental studies on the effect of the different combinations of different rotors and stators on the gas-liquid mass transfer characteristics of RSR were conducted at normal atmospheric pressure and under following conditions： rotation speed （N） from 500 r.min-1 to 1450 r.min-1, liquid flow rate （L） from 0.1 m3.h-1 to 0.5 m3.h-1 and gas flow rate （G） from 0.2 m3.h-1 to1.0 m3.h-1. The correlation equation of gas-liquid mass transfer coefficients in the RSR with different rotors and stators combinations was established and the simulation parameters in the equation were determined. The experimental results show that the volumetric gas-liquid mass transfer coefficient （Kxa） increases with the increase of G, L and N. The deoxygenating ratio （e） in the RSR increases with the increase of G and N, while it decreases with the increase of L. Among the six different combinations of rotor and stator with different structures used in the experiments, the experimental results show that the RSR with the rotor and stator combination of SS-RH and SC-RH have better mass transfer characteristics than the RSR with other combinations of rotor- stator structures.
出处
《高校化学工程学报》
EI
CAS
CSCD
北大核心
2009年第3期381-386,共6页
Journal of Chemical Engineering of Chinese Universities
关键词
定-转子反应器
气液传质性能
结构参数
关联式
Rotor-Stator Reactor （RSR）
gas-liquid mass transfer characteristics
configuration factors
correlation
