METHOD OF FCC SPENT CATALYST STRIPPING FOR IMPROVED EFFICIENCY AND REDUCED HYDROCARBON FLOW TO REGENERATOR

摘要

F-4886 METHOD OF FCC SPENT CATALYST STRIPPING FOR IMPROVED EFFICIENCY AND REDUCED HYDROCARBON FLOW TO REGENERATOR A method and apparatus are disclosed to reduce the amount of unstriped hydrocarbon flowing to the regenerator in an FCC unit. The catalyst stripper section is heated by indirect heat exchange with a mixture of hot regenerator flue gas and regenerated catalyst.