A CATALYTIC CRACKING CATALYST, ITS PREPARATION AND USE

摘要

A catalytic cracking catalyst for hydrocarbon oil comprising alumina-containing carrier and molecular sieves is characterized by the following pore volume distribution: 5-70 vol.% with pore diameter < 2 nm, 5-70 vol.% with pore diameter 2~4 nm, 0-10 vol. % with pore diameter 4~6 nm, 20-80 vol.% with pore diameter 6~20 nm, 0-40 vol.% with pore diameter 20~100 nm, based on the total pore volume with pore diameter not more than 100 nm. The present catalyst has high pore volume on BET and strong ability to crack heavy oil and resist coke.