Rotary concentrator and method of processing adsorbable pollutants

A method of removing adsorbable pollutants from an inlet gas stream using a rotary concentrator, said rotary concentrator including adsorbent media having an adsorbent zone, a first desorbent zone and a second adjacent desorbent zone, wherein said first desorbent zone is located upstream of said second desorbent zone as said media rotates through said zones, said method comprising the following steps:

• rotating said adsorbent media through said zones;
• passing said inlet gas stream including adsorbable pollutants over said adsorbent zone of said adsorbent media, thereby removing said adsorbable pollutants from said inlet gas stream;
• passing a first gas having a temperature equal to or greater than a desorption temperature of said adsorbable pollutants on said adsorbent media over said media in said first desorbent zone for a time sufficient to heat said media in said first desorbent zone to generally the desorption temperature of said pollutants on said adsorbent media;
• passing a second gas having a temperature less than said desorption temperature over said adsorbent media in said second desorbent zone to remove said adsorbable pollutants from said second desorbent zone;
• and
• passing said gas received from at least one of said desorbent zones to an oxidizer processor destroying said adsorbable pollutants.

A method of removing adsorbable pollutants from an inlet gas stream using a rotary concentrator, said rotary concentrator including adsorbent media having an adsorbent zone, a first desorbent zone and a second adjacent desorbent zone wherein said first desorbent zone is located upstream of second desorbent zone as said adsorbent media rotates through said zones, said method comprising the following steps:

• rotating said adsorbent media through said zones;
• passing said inlet gas stream including adsorbable pollutants over said media in said adsorbent zone, thereby removing said adsorbable pollutants;
• passing a first gas having a temperature equal to or greater than a desorption temperature of said adsorbable pollutants on said adsorbent media over said media in said first desorbent zone for a time sufficient to heat said media in said first desorbent zone to generally said desorption temperature;
• recycling said first gas received from said first desorbent zone to said rotary concentrator;
• passing a second gas having a temperature less than said desorption temperature over said media in said second desorbent zone to remove said adsorbable pollutants from said media in said second desorbent zone;
• directing said second gas received from said second desorbent zone to an oxidizer processor, thereby oxidizing said adsorbable pollutants and heating said second gas.

A rotary concentrator comprising:

• a rotating unit including adsorbent media having an adsorbent zone, a first desorbent zone and an adjacent second desorbent zone, wherein said first desorbent zone is located upstream of said adjacent second desorbent zone as said adsorbent media rotates through said zones;
• a process gas inlet directing an inlet gas stream having adsorbable pollutants over said adsorbent media in said adsorbent zone;
• a hot desorbent gas inlet directing hot desorbent gas having a temperature equal to or greater than a desorption temperature of said adsorbable pollutants over said adsorbent media in said first desorbent zone;
• and
• a second cold desorbent inlet directing desorbent gas having a temperature less than said desorption temperature over said media in said second desorbent zone, thereby removing said pollutants from said media in said second desorbent zone.