Abstract: An apparatus and method for adsorption of organic and inorganic volatile compounds in gas flows by continuous and simultaneous distribution of a plurality of primary and secondary flows, through particular distribution and shut-off devices, to a plurality of chambers, in which the individual energy and mass transfer operations associated with such adsorption occur. High flow-rate and/or concentration are accommodated, following a cyclic adsorption/regeneration process, in which a part of the adsorbent material is used to separate the compounds in gas flows, while the rest of the material sequentially undergoes two or more desorption steps in a stabilized atmosphere suitable to carry the desorbed compounds at very high concentrations, and a final cooling step in a stabilized atmosphere, for preparing the material for continuing the process.

Abstract: A method for desorption and recovery of desorbed compounds, including the steps of generating a recirculating stream of inert gas (1), which passes through the material (2) to be desorbed, heating such inert gas stream to a temperature sufficient to cause the desorption process, yielding a gas effluent (3) from such recirculating stream of inert gas (1) in such a manner that the recirculated gas keeps a constant pressure, cooling such gas effluent to cause condensation of the desorbed compounds contained in such gas effluent (3), the cooling being obtained at least partly by pressure vaporization of a cryogenic fluid (4), and feeding such recirculating gas stream (1) by using at least a part of such pressure vaporized cryogenic fluid that was previously used to cool at least a part of the gas effluent (3).