As the iron content in crude oil increases, the iron content of the equilibrium catalyst in the fluid catalytic cracking (FCC) unit has significantly risen, reaching up to 8,000 μg/g or more, seriously affecting the safe and stable operation and overall efficiency of the unit. Iron removal from crude oil is the preferred measure to address the problem of high-iron crude oil processing, but there is currently no targeted technology or method. Electrical desalting and the use of solid removal agents, calcium removal agents, and metal removal agents can assist in iron removal, but the effect is limited. Residue hydrogenation units can alleviate or solve the problems caused by high-iron crude oil processing by optimizing the feeding process and catalyst assistance. The FCC unit can passively cope with iron interference by increasing the amount of fresh catalyst and using anti-iron and iron-capture technologies. End iron-resistant technology is the most effective measure to deal with high-iron crude oil processing. Its application effect is obvious, but the cost is too high, thus further optimization is needed. To cope with the processing of high-iron crude oil, the entire process must be optimized.

随着原油铁含量上升，催化裂化装置平衡催化剂铁含量上升明显，最高可达8000 μg/g以上，严重影响装置安全稳定运行及总体效益。原油端脱铁是应对高铁原油加工问题的首选措施，但目前还没有针对性的技术或方法，通过电脱盐及使用脱固剂、脱钙剂、脱金属剂等可对脱铁起到辅助作用，但效果有限。渣油加氢装置通过优化进料流程和催化剂辅助等方法可缓解或解决高铁原油加工带来的问题。催化裂化装置可通过增加新鲜剂用量，使用抗铁、捕铁技术等被动应对铁的干扰问题。末端抗铁技术是应对高铁原油加工最有效的措施，其应用效果明显，但成本过高，需进一步优化。应对高铁原油的加工，需全流程优化。