The invention introduces a catalyst multi-section regeneration method and an apparatus, firstly, a spent catalyst enters a first section regenerator, and is in
contact reaction with
oxygen-containing gases in the first section regenerator, a second section regenerator and a third section regenerator sequentially,
oxygen-containing regeneration
flue gas of the first section enters the second section for continuous utilization, and the fresh
compressed air is input to the third section for regeneration reaction, so as to complete the whole
regenerative process. The fresh
compressed air can also be supplemented to the first section regeneration reaction or the second section regeneration reaction, and the catalyst can also
reflux to other sections for regeneration. The regeneration apparatus is composed of a first section turbulent
bed regenerator, a second section turbulent
bed regenerator and a third section turbulent
bed regenerator in series connection, a distribution plate or a baffle and a catalyst standpipe are arranged, and all the regenerators are in coaxial arrangement. The invention adopts the multi-section counter-current regeneration, increases the average
chemical kinetics speed, strengthens the
regenerative process, saves the
oxygen-containing gas usage, and reduces the production expense; and realizes the feeding of the spent catalyst from the bottom part or the middle part of each regenerator, lowers the height of the corresponding catalytic conversion device, shortens the oil-gas
pipe-line, and reduces the construction investment.