催化裂化催化剂酸性控制的研究

Research for Control the Acidity of RFCC Catalyst

关键词:  催化裂化 催化剂 分子筛 酸性 裂化性能

Key words:  cracking, catalyst, molecular sieve, acidity, crackability

摘要:

以催化裂化反应为基础,分析了B酸和L酸在裂化催化剂中的形成、分布、转化和作用机理.论述了稀土交换量、分子筛晶粒细化、酸性分布、酸性助剂等酸性调节、控制技术对催化剂裂化活性的影响.酸性助剂作为酸性调节技术,通过减缓进出提升管催化剂活性的衰减,强化催化裂化反应的作用已得到室内试验结果的支持.

Abstract:

Based on reaction chemistry of residue catalytic cracking. It is analysed how several factors including formation, distribution, transformation, action mechanism of Bronsted acid and Lewis acid of RFCC catalyst, discussed that acidity adjustability and co