The present invention is directed to a method and sequence of processing steps within an apparatus arrangement comprising two separate fluidized relatively dense catalyst beds undergoing regeneration to remove carbonaceous deposits wherein catalyst particles are circulated between catalyst beds to transfer...http://www.google.es/patents/US4471063?utm_source=gb-gplus-sharePatente US4471063 - Method and apparatus arrangement for regenerating fluid particles of catalyst
Method and apparatus arrangement for regenerating fluid particles of catalyst