Rare earth elements containing Y-type molecular bodies, their manufacturing methods, and contact d

文件类型：PDF文档
文件大小：866K
Provided is a Y-type molecular sieve containing a rare earth element characterized by the existence of at least two mesoporous pore size distributions at 2-3 nm and 3-4 nm. Also provided is a catalytic cracking catalyst having an excellent heavy oil conversion ability, a high gasoline yield, and a low coke selectivity when used for heavy oil catalytic cracking.