Identifying the Root Cause of Afterburn in Fluidized Catalytic Crackers

摘要

The FCC unit has a long history of upgrading low valued feed stocks into much higher valued LPG olefins and motor fuels. One notable reason for the long term success of this technology has been its stability in spite of high catalyst circulation rates. One common exception to this rule is the presence of afterburn which continues to plague many FCC units.