研究现代流化催化裂化( FCC )工艺流程( ppt 第 27 页),回答下面的问题。 ( 1 )目前催化裂化主要采用哪一类催化剂?催化剂的形状是怎样的?颗粒大小是多少?(15分) (2)裂解反应采用的是什么类型的反应器,反应时间大致是多少?(10分) ( 3 )在裂解反应器中,包含哪些 “ 相 ” ?(10分) ( 4 )裂解器中旋风分离器的作用是什么?(10分) ( 5 )催化剂失活的原因是什么?(5分) ( 6 )为什么要进行催化剂的连续再生而不是分批再生?(5分) ( 7 )实现催化剂再生的设备是什么?催化剂再生的原理是什么?(10分) ( 8 )催化剂能在反应器中流动,在再生器中 “ 翻滚 ” ,在反应器和再生器之间循环,这是采用了一种什么技术?(10分) ( 9 )裂解反应是吸热反应,怎样提供反应所需的热量?(10分) Study the modern process of Fluid Catalytic Cracking (FCC), and then answer the following question. (1) What kind of catalyst is currently used in FCC? What is the shape of the catalyst particle? What is the size of the catalyst particle? (15 points) (2) What kind of reactor in FCC? How long does the cracking take place? (10 pounts) (3) What are the phases involved? (10 points) (4) What are the functions of the cyclones in cracker? (10 points) (5) What does lead to the deactivation of catalyst? (5 points) (6) Why is the catalyst regenerated continuously rather than in batch? (5 points) (7) What is the equipment in which the catalyst is regenerated? What is the principle of regeneration? (10 points) (8) What is the technology by which the catalyst flows in reactor, is circulated between cracker and regenerator, and is rolling in regenerator? (10 points) (9) Cracking is endothermic. How is the energy needed by the reaction supplied? (10 points)