| 摘要 |
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 ).
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