| 摘要 |
<p>A volatile component is recovered from a source 2 containing the volatile component, an inert carrier gas (nitrogen), water vapour and oxygen by a process including the steps of adsorbing the water vapour from the stream in beds 12A and 12B at a lower temperature, condensing substantially all of the volatile component from the stream in a condenser 22, heating the water vapour-free and volatile component-free gas stream by passing the stream through a heater 38, purging the adsorbers 12A and 12B with the heated gas stream and venting the purge gas and desorbed moisture. Inert gas taken from the source 2 is partly replenished with fresh oxygen-free inert gas, thereby keeping down the concentration of oxygen in the source 2. <IMAGE></p> |
