磁稳定床己内酰胺加氢精制新工艺  

New Process for Purification of Caprolactam in Magnetically Sta bilized Bed Reactor

作　　者：汪颖[1] 江雨生[1] 罗耀邦[2] 傅送保[2] 孟祥堃[1] 慕旭宏[1] 宗保宁[1] 

机构地区：[1]中国石油化工股份有限公司石油化工科学研究院22室,北京100083 [2]中国石油化工股份有限公司巴陵分公司技术开发中心,湖南岳阳414003

出　　处：《精细化工》2003年第8期472-474,共3页Fine Chemicals

基　　金：国家重点基础研究发展规划资助项目(G2000048005)

摘　　要：对气液固三相搅拌釜反应器与液固磁稳定床反应器串联的己内酰胺加氢精制过程进行了研究,研究了各种操作参数对反应结果的影响,考察了催化剂的稳定性。实验结果表明,采用该工艺可使w(己内酰胺)=30%的水溶液的高锰酸钾值从50s提高到3000s以上,催化剂寿命3200h。与工业上釜式己内酰胺加氢精制工艺相比,催化剂耗量可降低70%。New hydrogenation process,which ties a G-L-S tank reacto r and a magnetically stabilized bed reactor,is used for purification of caprolacta m.The effects of various operating conditions on the hydrogenation process are i nvestigated,and the stability of SRNA-4 catalyst is also examined.Experimental r esults show that the permanganate number of caprolactam solution can be increase d from 50 seconds to more than 3000 seconds through this new process, and the li fetime of SRNA-4 catalyst is more than 3200 hours.The catalyst consumption is re duced by 70%,as compared with that in a slurry reactor.

关 键 词：磁稳定床 己内酰胺 非晶态合金 加氢 

分 类 号：TQ032.41[化学工程]