根据裂解重油大分子对催化剂的要求以及催化剂抗钒、抗镍机理 ,设计研制了一种抗重金属重油催化裂化催化剂LD -4。结果表明 :该催化剂抗钒性能与国内同类催化剂相当 ;当催化剂中镍、钒含量达 50 0 0 μg/g时 ,与对比催化剂相比 ,该催化剂汽油产率增加了 0 .7个百分点 ,干气降低了 0 .6个百分点 ,焦炭降低了 2个百分点 ,汽油、干气与焦炭选择性等均优于对比催化剂。 According to the requirements of catalysts for cracked heavy oil macromolecules and the mechanism of anti-vanadium and anti-nickel catalysts, a heavy metal heavy oil catalytic cracking catalyst LD -4 was designed and developed. The results show that the vanadium resistance of the catalyst is comparable to that of the domestic counterparts. When the content of nickel and vanadium in the catalyst reaches 50 000 μg / g, the yield of gasoline increases by 0.7% compared with that of the comparative catalyst Gas decreased 0.6 percentage point, coke decreased 2 percentage points, gasoline, dry gas and coke selectivity are better than the comparative catalyst.