Regenerating catalyst to remove carbon catalìtico fluid cracking catalyst (FCC) spent circulated in a FCC unit, and,Processes for regenerating catalyst for cracking (FCC) catalìtico fluid circulated i

摘要

"Regenerating catalyst to remove carbon from the catalyst for cracking (FCC) spent catalu00ectico fluid circulated in a FCC unit, and,Processes for regenerating catalyst for cracking (FCC) catalu00ectico fluid circulated in a FCC unit.And to retrofit a regenerator of catalytic cracking unit catalu00ectico fluid (FCC) is exposed to combustion in stages in a single unit of FCC regenerator.The regenerator has a distributor of spent catalyst at the top of the bed of catalyst and a grid of air into the lower end of the bed.A baffle separates the bed of catalyst in upper and lower stages. Excess oxygen is present in the bed below; the mode of partial CO combustion is maintained in the upper bed.The deflector inhibits the flow of against - mixing to achieve a probationary period sufficient for clean burning of the catalyst and under partial CO combustion.This provides a clean burning of the catalyst in a regenerator vessel in a single operation mode of partial CO combustion.Surprisingly, the baffle also reduces the drag of a catalyst in the dilute phase, thus cutting the particulate emissions from the regenerator and reducing the wear of the cyclone.