关键词: 分散剂, FCC, 催化剂, 制备, 有效酸量

Abstract: The physicochemical properties and catalytic cracking performance of four catalysts prepared by various processes were compared. Results showed that adding dispersant could significantly improve the catalyst performance, such as the heavy oil conversion of the catalyst could be increased more than 0.75 units as compared with that of catalyst prepared without dispersant. The performance of the catalyst could be adjusted in some ways by controlling the effective acid amount to acidify preudoboehmite, the attrition index of catalyst prepared by this method could be less than 2.0%.

Key words: Dispersant, FCC, catalyst, preparation, effective acid amount