A Novel SiC Foam Valve Tray for Distillation Columns  

作　　者：张吕鸿 刘学宽 李鑫钢 高鑫 隋红 张劲松 杨振明 田冲 李洪 

机构地区：[1]School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China [2]National Engineering Research Center for Distillation Technology, Tianjin University, Tianjin 300072, China [3]Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

出　　处：《Chinese Journal of Chemical Engineering》2013年第8期821-826,共6页中国化学工程学报（英文版）

基　　金：Supported by the National Basic Research Program of China （2009CB219905）; National Natural Science Foundation of China（21176172）; National Key Technology R＆D Program （2011BAE03B07）; Program for Changjiang Scholars and Innovative Research Team in University （IRT0936） The authors are also grateful to Institute of Metal, Chinese Academy of Science for providing SiC foam elements, and their support and discussions.

摘　　要：The novel SiC foam valve tray was made of thin slices of SiC foam material with a high specific surfacearea. Hydrodynamic performances of the novel SiC foam valve tray were studied with air-water system at atmos-pheric pressure. These performance parameters included pressure drop, entrainment, weeping and clear liquidheight. The mass transfer efficiency of the SiC foam valve tray was measured in laboratory plate column. Comparedwith the F1 float valve tray, the dry pressure drop was decreased about 25%, the entrainment rate was about 70%lower at high gas load, the weeping was much better, and the mass transfer efficiency was far higher. Thus, theoverall performance of the novel SiC foam valve tray was better than that of F1 float valve tray.The novel SiC foam valve tray was made of thin slices of SiC foam material with a high specific surfacearea. Hydrodynamic performances of the novel SiC foam valve tray were studied with air-water system at atmos-pheric pressure. These performance parameters included pressure drop, entrainment, weeping and clear liquidheight. The mass transfer efficiency of the SiC foam valve tray was measured in laboratory plate column. Comparedwith the F1 float valve tray, the dry pressure drop was decreased about 25%, the entrainment rate was about 70%lower at high gas load, the weeping was much better, and the mass transfer efficiency was far higher. Thus, theoverall performance of the novel SiC foam valve tray was better than that of F1 float valve tray.

关 键 词：SiC foam valve tray hydrodynamic performance mass transfer efficiency F1 float valve tray 

分 类 号：TQ053.5[化学工程] TB333[一般工业技术—材料科学与工程]