Abstract: The aim of this paper is to introduce the development of SOx transfer addictive in FCC flue gas. The effect of cerium and vanadium on De-SOx activity is discussed and the optimal composition of addictive is found. A new manufacturing method with optimized carrier pore structure and deposits metal components can dynamically increase the activity of addictive. The commercial application shows that over 70% SOx in FCC flue gas is reduced without compromising product yields and product quality，when 2% addictive is injected.

Key words: fluid catalytic cracking, flue gas, De-SOx, addictive, activity

摘要： 研制开发了一种降低催化裂化再生烟气SOx排放的助剂。研究了铈、钒等组分对脱硫性能的影响，得到了最佳的化学组成；开发了优化载体孔结构和连续动态浸渍活性金属的制备工艺，进一步提高了脱硫活性。工业应用结果表明，新开发的降低催化裂化再生烟气SOx排放助剂能有效减少SOx的排放，在添加2%左右（占总藏量）助剂时，再生烟气中SOx脱除率可达到70%以上，而对产品分布和主要产品性质没有明显的不良影响。

关键词: 催化裂化, 再生烟气, 脱硫, 助剂, 活性