Patent ID: 8664137
Filing Date: 2014-03-04
Classification: B01J,C01B,Y02P

Abstract:
1. A method for regenerating deactivated alumina from regenerating working fluid in making hydrogen peroxide to become activated alumina consisting of following steps: adding the deactivated alumina containing organic materials into a reactor through a top of the reactor and settling by gravity; adding oxidizing atmosphere entering into the reactor from a bottom of the reactor and the oxidizing atmosphere runs upwardly; then discharging exit gas through a discharge port on a top of the reactor and discharging regenerated alumina through a discharging device on a bottom of the reactor respectively; wherein, a reaction temperature is in a range from 380 C.° to 800 C.°, a stay time of solid materials in the reactor is in a range from 3 h to 15 h, and a volume-weight ratio of oxygen contained in the oxidizing atmosphere to the deactivated alumina is as follows: carbureted hydrogen organic materials in the deactivated alumina are exhausted by self-burning in the oxidizing atmosphere.