重油催化裂化装置催化剂跑损原因分析

Investigation on the causes for abnormal loss of FCC catalyst in RFCC unit

胜利石油化工总厂重油催化裂化装置生产过程中多次出现催化剂严重跑损现象,设备故障和催化剂破碎是其主要原因。对催化剂的分析表明,催化剂破碎主要由于原料中钠、钒含量超标、再生温度过高和提升管预提蒸汽线速过高所致。

Several severe losses of catalyst took place from a residue FCC unit in Petrochemical Complex of Shengli Oil Field. Analysis of the catalyst showed that the catalyst losses were mainly caused by equipment fault and breakage of the catalyst. The causes behind breakage of the catalyst are excessive sodium and vanadium content in the feed oil, excessively high regeneration temperature and excessively high steam velocity in riser pipe.