氨肟化装置膜分离系统的应用和优化  

Application and optimization of membrane separation system in cyclohexanone ammoximation unit

作　　者：刘春平[1] 肖莉[1] 顾耀明[1,2] 邢卫红[2] 

机构地区：[1]中国石化股份公司巴陵分公司己内酰胺事业部,湖南岳阳414007 [2]南京工业大学材料化学工程国家重点实验室,南京210009

出　　处：《合成纤维工业》2009年第3期60-62,共3页China Synthetic Fiber Industry

基　　金：国家重点基础研究发展规划项目(G2000048005)

摘　　要：分析了环己酮肟生产中氨肟化装置膜分离系统运行不稳定的原因;提出了技术改造和工艺优化措施。结果表明:膜分离系统膜管表面污染导致其运行不稳定,原因是生产中弱碱性条件下破碎的催化剂颗粒附着在膜表面形成沉积层。通过提高错流速率,稳定反冲压力,改变反冲方式和反冲介质等优化措施,可实现膜分离系统的稳定运行。The reasons for the operation instability of membrane separation system were analyzed for ammoximation unit of cyclohexanone plant. The technological transformation and process optimization were described. The results showed that the membrane tube surface contamination of the membrane separation system caused the operation instability, which resulted from the deposition layer of broken catalyst particles on the membrane tube surface in alkalescent environment. The stable operation of membrane separation system can be realized by increasing cross flow velocity, stabilizing recoil pressure and changing recoil method and medium.

关 键 词：环己酮肟 氨肟化 钛硅分子筛 膜分离系统 

分 类 号：TQ234.2[化学工程—有机化工]