Lab contaminated samples prepared by iron naphthenate showed the similar iron distribution on catalyst particle as equilibrium catalyst samples from commercial unit.

• 综合分析不同工业平衡剂的铁分布状况以及生产情况,认为评价铁污染对催化剂的影响不能单纯以平均铁含量为标准,必须结合铁在催化剂上的分布情况。