Catalytic cracking catalyst as well as preparation method and application thereof

The invention discloses a catalytic cracking catalyst and a preparation method and application thereof. The method comprises the following steps: (1) mixing deionized water, alumina sol and inorganic acid, adding pseudo-boehmite, pulping, dispersing and aging; (2) mixing deionized water and a molecular sieve to form molecular sieve slurry, and adding the molecular sieve slurry into the slurry prepared in the step (1); (3) adding amide substances or derivatives thereof and clay into the slurry prepared in the step (2), and uniformly mixing, the addition amount of the amide substances or derivatives thereof being 0.05-5% of the mass of solid substances in the raw materials; (4) refining the slurry prepared in the step (3) to prepare catalyst slurry; and (5) carrying out spray granulation on the catalyst slurry prepared in the step (4) in a spray drying tower. The method can be used for preparing the catalytic cracking catalyst with high sphericity degree. 本发明公开一种催化裂化催化剂及其制备方法和应用。其中的方法包括：(1)将去离子水、铝溶胶、无机酸进行混合，加入拟