摘要
采用流体动力学方法模拟多孔介质内的电渗流动行为 ,探讨了电场强度、多孔介质的孔隙率等对填充床层中电渗流场、宏观电渗流动及传质特性的影响 ,并以羟基磷灰石电色谱、采用DEAESepharoseFastFlow为介质的离子交换电色谱及BlueSepharoseFastFlow为介质的亲和电色谱分离过程为例将理论计算结果与实验结果进行了对比 ,二者吻合较好 ,证实了上述理论研究的正确性并显示出此方法在发展新型固 液电动分离技术中的应用前景 .
A CFD simulation of liquid flow in porous media was developed The effects of electric field strength and the porosity of media on electroosmotic flow and mass transport were presented The CFD simulation results were compared to the experimental data obtained in electrochromatography on hydroxyapatite, ion exchange electrochromatography on DEAE Sepharose Fast Flow, and affinity electrochromatography on Blue Sepharose Fast Flow The good agreement between the numerical simulation with the experimental results including the overall electroosmotic flux and the mass transport described by mass transport coefficient and breakthrough curve confirms the validity of the CFD simulation and indicates the high potential of electroosmosis in the development of new solid liquid separation processes
出处
《化工学报》
EI
CAS
CSCD
北大核心
2003年第8期1044-1048,共5页
CIESC Journal
关键词
多孔介质
电渗
模拟
计算流体动力学
电色谱
porous media,electroosmosis,simulation,CFD,electrochromatography
