Abstract: The invention relates to a cleaning device wherein polluted effluents are passed into a cage (2) where a partitioned ring (1) of vertical axis, containing a charge (M) of a solid material exhibiting a large heat exchange surface and, against the inner wall thereof, a catalyst bed (9), rotates. An autothermal working point is reached by including in the catalyst bed heating means (resistors for example) that are temporarily connected to the power supply system, after which the cleaning operations with rotation of the ring and effluent circulation are launched. Heat control is thereafter provided by controlled injection into the effluents of either a fuel or sprayed water for example by means of injectors (15, 16). The device can be applied in the field of incineration of VOC for example in industrial effluents.

Abstract: A process and device for scrubbing flows of gaseous effluents loaded with polluting substances, wherein the effluents are caused to circulate through a device including an array of scrubber units (4a to 4n) juxtaposed in an enclosure (3), each containing materials adsorbing the substances. When the adsorbing load thereof is saturated and for the scrubber units (4) to regain the scrubbing capacity thereof, they are selectively and successively isolated by a mobile collector (8) during the time required for their desorption by heating and for the substances to be transferred by an auxiliary fluid (a fraction of the circulating effluents for example or a gas delivered selectively to the inlet of the scrubber unit to be desorbed by an auxiliary circuit), and the substances mixed with the auxiliary fluid are possibly transferred towards a reactor (10) suited for removing them. The process can be applied for concentrating and scrubbing of polluting substances such as VOCs or gas dehumidification.

Abstract: A process of cleaning a gas and a rotating catalytic gas cleaning device including a crown of vertical axis driven into rotation in a cage. The crown has an annular catalyst bed covering its inner wall and an annular thermal load, outside the catalytic bed, made of a material exhibiting a large heat exchange surface. A polluted gas is radially passed from a peripheral inlet to a central zone of the crown with crossing of an annular thermal load and a catalytic layer. The gas is radially passed gas from the central zone to a peripheral outlet, while again crossing the catalytic bed and thermal load with thermal exchange.

Abstract: A heat transfer device includes a ring having a vertical axis that can rotate inside a cage. The ring is inwardly provided with partitions. A permanent circulation of gaseous effluents is established on one hand between an effluent delivery pipe and a central zone via a first limited angular sector of the ring and on the other hand between the central zone and an effluent discharge pipe 6 via a second limited angular sector of the ring. The ring is charged with a mass of large heat exchange surface material and the device can be used for recovering positive or negative thermal energy. A thermal reactor of the catalytic bed type, for example, can be placed in the central zone for removing volatile organic compounds (VOC). The device may be used for catalytic or thermal oxidation of the organic compounds in gaseous effluents, for example.