新型转盘萃取塔在己内酰胺生产中的应用  

Application of a novel rotating disk contactor in caprolactam production

作　　者：李先华[1] 

机构地区：[1]中国石油化工股份有限公司巴陵分公司,湖南岳阳414014

出　　处：《合成纤维工业》2008年第3期21-23,共3页China Synthetic Fiber Industry

摘　　要：探讨了转盘萃取塔在己内酰胺精制中萃取效率的影响因素,影响转盘萃取塔传质性能的主要因素是级间的轴向返混和沟流。介绍了新型转盘萃取塔的设计及其在70 kt/a己内酰胺精制装置中的工业应用效果。与原装置转盘萃取塔的运行情况比较,新型转盘萃取塔内的固定环平面增加了筛孔挡板,能有效抑制转盘萃取塔内的轴向返混,提高转盘萃取塔的传质效率。The influential factors on the extraction efficiency of a novel rotating disk contactor were discussed during the caprolactam refining. The crucial factor affecting the mass transfer efficiency of the rotating disk contactor was the axial dispersion and channeling between stages. The design of the novel rotating disk contactor was introduced. Its industrial application in a 70 kt/a caprolactam refining unit was also introduced and compared with the running situation of the original rotating disk contactor. An additional mesh baffle on the fixed-ring plane can efficiently depress the axial dispersion and improve the mass transfer efficiency of the novel rotating disk contactor.

关 键 词：己内酰胺 萃取塔 轴向返混 传质效率 精制 

分 类 号：TQ226.31[化学工程—有机化工]