关键词: 有序介孔, 氧化铝, 催化裂化, 抗重金属, 催化剂

Abstract: Ordered mesoporous alumina was synthesized through solvent evaporation induced self assembly method with aluminium isopropoxide as aluminum source and P123 as template, and used as matrix component for preparation of new heavy metal tolerance FCC catalyst. Characterization results indicate that the alumina synthesized possesses ordered mesopores with surface area of 233 m2/g and pore volume of 0.55 cm3/g, which remarkably promote pore structure properties of FCC catalyst. The catalytic performance evaluation results illustrate the distinct improvement of heavy metal tolerance for FCC catalyst using this ordered mesoporous alumina. Compared with traditional catalyst, the dry gas, coke and heavy oil yields of the obtained catalyst decrease by 0.3, 0.92 and 0.25 percentage point, while the yields of gasoline, total liquid and light oil increase by 1.23, 1.53 and 1.02 percentage points，respectively.

Key words: ordered mesoporous, alumina, catalytic cracking, heavy metal tolerance, catalyst