研究了钒对分子筛和催化剂性能的影响 ,并开发出一种高活性固体的流化催化裂化抗钒助剂。随着钒含量的增加 ,分子筛的结晶度、比表面积、孔体积呈单调下降 ;而催化剂的催化活性大幅降低 ,选择性变差。抗钒助剂与其他类型的催化剂复配后 ,显示出较强的抗钒性能 ,能明显改善裂化产物的汽油、焦炭的选择性。 The effect of vanadium on the molecular sieve and catalyst performance was studied. A fluid catalytic cracking anti-vanadium additive with high activity was developed. With the increase of vanadium content, the crystallinity, specific surface area and pore volume of molecular sieve decrease monotonously; however, the catalytic activity of the catalyst is greatly reduced and the selectivity is poor. Anti-vanadium additives with other types of catalyst compound, showed a strong anti-vanadium performance, can significantly improve the cracking of gasoline, coke selectivity.