A process for regenerating a catalyst, in particular a plate-type or honeycomb catalyst, which has been at least partially deactivated by catalyst poisons, is described. A storage area of a storage medium is previously divided into a data area for storing a log including data of the file and a management area that can store management information related to the log stored in said data area for a plurality of entries. The flanges are connected together by tabs 30, 32, welding, or the like, and the interior space between axially spaced marginal edges 24, 36 of the outer and inner shell elements is closed off to retain the particulate catalyst component between the side walls.