催化裂化再生器稀相密度异常分析与处置  

ANALYSIS OF DILUTE PHASE DENSITY ABNORMITY IN FCC REGENERATOR AND MEASURES

作　　者：徐玉棠 徐成裕[1] Xu Yutang;Xu Chengyu(SINOPEC Zhenhai Refining & Chemical Company,Ningbo,Zhejiang 315207)

机构地区：[1]中国石化镇海炼化分公司,浙江宁波315207

出　　处：《石油炼制与化工》2019年第1期63-68,共6页Petroleum Processing and Petrochemicals

摘　　要：针对中国石化镇海炼化分公司2号催化裂化装置再生器稀相密度出现异常升高、再生器藏量下降、三级旋风分离器出口烟气细粉变粗等现象,经过分析平衡催化剂上铁含量、平衡催化剂电镜扫描等方法确认,是平衡催化剂铁中毒导致。通过降低原料铁含量、提高新鲜催化剂加入速率、使用低磁剂置换、降低主风量等措施,使再生器稀相密度、再生器藏量等快速恢复正常工况。并进一步分析了铁的来源、催化剂铁中毒的症状以及铁中毒后的应对措施。It was found that the dilute phase density of regenerator of FCCU rose abnormally with the regenerator capacity reduction and the bigger fine size in flue gas at outlet of three stage cyclones in SINOPEC Zhenhai Refining&Chemical Company.By analysis of Fe content on equilibrium catalyst and electron microscope scanning method,it is recognized that the iron poisoning is the reason for these phenomena.Through taking measures:reducing the iron content in feed,increasing the rate of adding fresh catalyst,replacement by low magnetic agent,reducing the main air volume,the normal operation conditions were quickly achieved.The source of iron,symptoms of iron poisoning and the measures to deal with iron poisoning were further analyzed.

关 键 词：催化裂化装置 稀相密度 铁中毒 

分 类 号：TE96[石油与天然气工程—石油机械设备]