Abstract: The effects of different hydrothermal deactivation temperatures on the activity, physicochemical properties, and reaction performance of two catalysts are investigated. The results show that with the increase of hydrothermal deactivation temperature, the activity of catalyst decreases continuously, but the activity decay rate is different with different molecular sieves. The physicochemical properties of hydrothermal aging catalyst at 815 ℃ for 10 h are better than those of equilibrium catalyst. The same amount of metal is deposited on catalyst A and B respectively by the impregnation method. When the hydrothermal deactivation is at 780 ℃ for 6 h, physicochemical properties of catalyst is close to equilibrium catalyst. When the FCC experiments are carried out in a pilot riser reactor, catalyst A impregnated inorganic metal is equal to evaluation results of industrial equilibrium catalyst.

Key words: temperature, FCC, catalyst, hydrothermal deactivation, micro-activity, reactivity

摘要： 考察了不同水热减活温度对两种催化剂的活性、理化性质、反应性能等的影响。结果表明,随着水热减活温度的升高,催化剂的活性不断下降,但催化剂的分子筛不同,活性衰减速率不同。在815 ℃,10 h的条件下老化后的催化剂理化性质略优于平衡剂。在催化剂A,B上采用浸渍法分别沉积与平衡催化剂相同的金属量,在780 ℃,6 h条件下水热减活,与平衡催化剂的性质相当。浸渍金属的催化剂A在中型提升管催化裂化装置上进行评价,反应性能与工业平衡剂有可比性。

关键词: 温度, 催化裂化, 催化剂, 水热减活, 微反活性, 反应性能