Patent ID: 8895464

Claim:
A process for regenerating a dehydrogenation catalyst comprising: passing the catalyst to a first stage in a regenerator reactor, wherein the catalyst is treated to a first set of combustion conditions with a first regeneration gas stream within the first stage and generating an intermediate catalyst stream, wherein the first set of combustion conditions include passing the first regeneration gas having an inlet oxygen content of at most 2% by volume; passing the intermediate catalyst stream to a second stage in the regenerator reactor, wherein the catalyst is treated to a second set of combustion conditions with a first portion of a second regeneration gas stream within the second stage and generating a second intermediate catalyst stream, wherein the second set of combustion conditions include passing the second regeneration gas having an oxygen content of at most 10% by volume, and wherein the average catalyst residence time is between 3 and 4 hours; and passing the second intermediate catalyst stream to a third stage in the regenerator reactor, wherein the catalyst is treated to a third set of combustion conditions with a second portion of the second regeneration gas stream within the third stage and generating a regenerated catalyst stream, wherein the first regeneration gas stream and the second regeneration gas stream are independent streams fed through independent gas lines.