关键词: 中孔, 氧化铝, 催化裂化, 抗铁污染, 催化剂

Abstract: Mesoporous alumina was prepared through sol-gel method using cellulose and pseudo boehmite as template and Al source, respectively, and further used as matrix material for the preparation of anti-iron contamination FCC catalyst, which were characterized by XRD, N2 adsorption-desorption, FT-IR, SEM and ACE techniques. Characterization results indicated that the prepared mesoporous alumina had much higher surface area, pore volume, pore size and acidity density in contrast with pseudo boehmite. Evaluation results illustrated that the negative effect caused by iron contamination on the catalytic cracking performance of the FCC catalyst containing mesoporous alumina was much lower, compared with traditional FCC catalyst, indicating that the anti-iron contamination performance of the catalyst was significantly improved.

Key words: mesoporous, alumina, FCC, anti-iron contamination, catalyst