Regeneration method of catalyst to be regenerated and activity recovery method of catalyst to be regenerated

The invention relates to the technical field of catalyst regeneration, and discloses a regeneration method of a to-be-regenerated catalyst and an activity recovery method of the to-be-regenerated catalyst. The method comprises the following steps: (1) determining a peak appearance result of a to-be-removed substance in a to-be-regenerated catalyst through a temperature programmed oxidation method; and (2) carrying out temperature programming roasting on the catalyst to be regenerated according to a peak result measured in the step (1). According to the regeneration method of the catalyst, the to-be-regenerated catalyst is subjected to segmented roasting according to the peak appearance temperature of the to-be-removed substances of the to-be-regenerated catalyst in the test result of the temperature programmed oxidation method, decomposition of all components in the to-be-regenerated catalyst can be promoted, excessive roasting or insufficient roasting is prevented, and the regeneration efficiency of the cata