Abstract: A process and an apparatus for processing an adsorption medium which, by means of a hot gas, is freed of an agent, particularly moisture, adsorbed in the adsorption medium and is then cooled by a stream of gas or air. In order to avoid undesired heating of the exiting gas stream and/or of the drying air, a stream of cooling gas emerging from the hot adsorption medium is conducted through a heat accumulator for receiving the heat from the hot adsorption medium and then is recirculated through the adsorption medium.

Abstract: An apparatus for drying particulate material which has at least one container for the particulate material, which container is connected in a closed air circulating system with an air drying device and a heater. Dry, heated air is moved through the particulate material by a blower in order to extract moisture from the particulate material. The moisture-laden air is discharged from the particulate material container, then dried again and heated by the heater and then is supplied again to the container for the particulate material. A connection for introducing the dry air is provided in the upper region of the particulate material container and leads into a duct which is arranged centrally within the container and which is equipped at its lower end with an air distributor. The duct which extends inside the particulate material container has a heat-insulating construction.

Abstract: A process for drying a gas stream having a periodically fluctuating moisture content which assures that a predetermined dew point temperature is not exceeded at any time by conducting the gas stream through a moisture adsorbing medium having a reversible moisture adsorption capacity is greater than the average moisture content of the gas stream, and an apparatus for carrying out this process comprising a source of a flowing gas, such as air, which has a fluctuating moisture content, connected to a gas utilizing device via a chamber filled with an adsorbing medium which adsorbs moisture in a reversible manner and which has a moisture adsorption capacity which is greater than the average moisture content of the gas stream.