摘要
连续重整装置中死区催化剂与正常催化剂的有效分离,对连续重整装置长周期运行具有重要意义。介绍了振动流化态密度分级技术与风车式物理分级技术的工作原理,对2种技术的优缺点进行了比较,结果表明:风车式物理分级技术在处理能力、可分离种类、自动化程度、作业环境要求等方面具有明显优势,分离效率高,可以对包括瓷球的全部催化剂进行分离。采用风车式物理分级技术对1#连续重整反应及再生系统卸出的PS-Ⅶ催化剂进行分级,实现了侏儒球、破损颗粒剂、高碳催化剂与正常催化剂的分离。工业运行结果表明:分级后的合格催化剂回用后,待生催化剂及再生催化剂碳含量无大幅波动,装置运行稳定,各工艺参数正常。
It is important to realize the efficient separating of dead zone catalyst and normal catalyst in continuous catalytic reforming unit,which can ensure the unit to operate in long period. The operating principles of the vibrating fluid state density classification technology and windmill type physical classification technology are presented,and the merit and demerit of the two technologies are compared. The results show that the windmill type physical classification technology has obvious advantages in the aspects of treatment capacity,separable species,degree of automation and operating environment,which can realize separation of all of catalysts including porcelain ball with high efficiency. The PS-Ⅶ catalyst unloaded from reforming reaction and regeneration system is classified by windmill type physical classification technology,and the dwarf ball,damaged granule,high-carbon catalyst are separated from normal catalyst. The results of industrial operation show that after recycling the classified and qualified catalyst,the carbon content of spent catalyst and regenerated catalyst has no large swing,and the operation and technical parameters are normal.
出处
《能源化工》
2017年第6期24-28,共5页
Energy Chemical Industry
关键词
连续重整
催化剂
密度分级
分离
continuous catalytic reforming
catalyst
density classification
separation
