Abstract: Apparatus for monitoring the temperature of adsorbers formed from several segments in which a traveling carbonaceous fill is located between two perforated walls, through which the gas to be cleaned flows. Each segment has on the gas outlet side several measuring elements, responding at a predetermined temperature and distributed over the height and width of the exit cross section. These measuring elements are electrically connected in series and their lead-ins are connected to a power source and an indicator instrument located outside the segment. On the outside perforated wall, insulators are located, with a continuous soldering wire placed between them. Prefabricated fusible cutouts may be used as measuring elements and may be connected by electrical lines. Semiconductor resistors may also be so used. Each segment may have a thermocouple on the gas exit side which can travel throughout the entire height of that side. Separately charged ntirogen lines may be provided for cooling.

Abstract: A process for thermal regeneration of charged activated coke or activated carbon granulate, in which the granulate is preheated in a preheating zone, and is then heated in a heating zone of a traveling bed by direct contact with a heated stream in the form of a partial stream of desorption gas expelled from the granulate. The granulate is then cooled in a cooling zone immediately after leaving the heating zone. The preheating and cooling procedures are carried out by using a heat exchange medium which is separate from the heated stream in the heating zone.

Abstract: An apparatus for thermal regeneration of loaded adsorbents by a hot solid heat carrier consisting of a container having a head and a base. The head holds feed pipes for the adsorbent and the heat carriers and the base has a discharge unit. A bottom arrangement of pipes is located underneath these feed pipes. A gas feed duct is located outside this container and connected to the bottom arrangement of pipes which has gas outlet nozzles. The pipes in this bottom arrangement of pipes are spaced apart by a multiple of the grain diameter of the absorbents and the heat carrier. The gas outlet nozzles may be directed downwardly. Outlet connections for desorption gas in the head may lead to the gas feed duct. The bottom arrangement of pipes may be located in the upper portion of the container and a filling level meter may be electrically connected through a regulating circuit to the discharge unit above the bottom arrangement of pipes.

Abstract: A method and apparatus for separating undesirable components from a waste gas by adsorption of the components onto a granular adsorbent. The gas is caused to flow serially through two distinct side-by-side layers of adsorbent both moving parallel to one another in a direction perpendicular to the direction of gas flow. The adsorbent material is so controlled that the particles of the second layer to be contacted by the gas are less loaded with impurities than the particles of the first layer. In one embodiment, this result is achieved by moving the second layer faster than the first layer.