催化剂铁中毒对催化裂化装置的影响及对策  

Influence and countermeasures of iron poisoning of catalyst on fluid catalytic cracking unit

作　　者：何涛 詹有福 徐赫 秦玉建 周梓桐 达伟 郑云锋 谭争国 HE Tao;ZHAN You-fu;XU He;QIN Yu-jian;ZHOU Zi-tong;DA Wei;ZHENG Yun-feng;TAN Zheng-guo(1st Department of Refining of Yunnan Petrochemical Company Co Ltd,PetroChina,Anning 650399,China;Lanzhou Petrochemical Research Center,Petrochemical Research Institute,PetroChina,Lanzhou 730060,China)

机构地区：[1]中国石油云南石化有限公司炼油一部,云南安宁650399 [2]中国石油石油化工研究院兰州化工研究中心,甘肃兰州730060

出　　处：《石化技术与应用》2025年第2期140-142,167,共4页Petrochemical Technology & Application

摘　　要：针对中国石油云南石化有限公司3.3 Mt/a催化裂化装置催化剂铁中毒的问题,对催化剂铁中毒原因及其对催化剂性质、装置操作工况及产品分布的影响进行了分析,并提出了相应的对策。结果表明:催化剂铁中毒后,其密度由0.93 g/mL降至0.82 g/mL,球形度变差;装置出现再生器藏量增加,烧焦罐藏量减少,油浆中固体质量浓度下降,产品分布变差等问题。通过采取优化再生器操作,置换平衡剂,补充新鲜催化剂,降低原料含铁量等措施,可缓解催化剂铁中毒对装置运行带来的影响,确保装置平稳高效运行。In response to the problem of iron poisoning of catalyst in the 3.3 Mt/a fluid catalytic cracking unit of Yunnan Petrochemical Co Ltd,PetroChina,the causes of iron poisoning of catalyst and its influence on catalyst properties,unit operating conditions,and product distribution were analyzed,and corresponding countermeasures were proposed.The results showed that after iron poisoning of catalyst,its density decreased from 0.93 g/mL to 0.82 g/mL,and its sphericity deteriorated.The unit had problems such as increasing in the storage capacity of the regenerator,decreasing in the storage capacity of the coking tank,decreasing in the solid mass concentration in the oil slurry,and a deterioration in product distribution.By taking measures such as optimizing the operation of the regenerator,replacing the balancing agent,supplementing fresh catalyst,and reducing the iron content of the raw materials,the negative impact of iron poisoning catalyst on the operation of the unit could be alleviated,ensuring smooth and efficient operation of the unit.

关 键 词：催化裂化 催化剂 铁中毒 产品分布 

分 类 号：TE624.41[石油与天然气工程—油气加工工程]