PROCESS FOR FLUID CATALYTIC CRACKING

摘要

The invention relates to a process for the fluid catalytic cracking of hydrocarbons using a downflow reactor and a catalyst with an Akzo Accessibility Index (AAI) of at least 3.5. This process combines the advantages of the use of downflow and riser reactors: minimal overcracking a nd high conversion of the higher boiling fraction. The use of a downflow reacto r minimises overcracking, while the cracking catalyst facilitates high conversions, even for high-boiling fractions in the feed.