| 摘要 |
<p>The device comprises essentially a crown (1) with a vertical axis and rotationally driven inside a cage (2) which is arranged to define around the crown two variable section zones (Za, Zb) respectively for the introduction of contaminated effluents and the evacuation of purified effluents. The purification is carried out through a passage from one zone to the other through the crown which comprises an annular catalyst bed (9) lining the internal wall thereof and preferably an annular filler (M) which is external to the catalyst bed and which consists of a material having a large heat-exchange surface. Means are used to create important charge losses avoiding leaks by passing round the crown. A burner may be added if necessary in the reaction zone. Said arrangement saves considerably the ground surface and space and reduces the weight of the device as well as its manufacturing and maintenance costs. Application to the purification of gas laden for example with volatile organic compounds.</p> |
