Removal and concentration of organic vapors from gas streams
OwnerManlio M. Mattiainventor
Life of this patent
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Abstract
Organic vapors are removed from a gas stream and concentrated to a high degree in a continuous adsorption process. The vapor-laden gas passes through a portion of a cylindrical-shaped adsorber as it rotates in a plane normal to the gas flow. The rotating adsorber then moves through several stages including regeneration and cooling. The vapor-laden gas is spiked with recovered product to increase the loading on the adsorbent and thus provide a higher regenerating gas composition. Multi-stage regeneration assures a high recovery efficiency.
Claims10
A process for the removal and concentration of organic vapor from gas streams comprising continuously and simultaneously conducting various steps on different sections both above and below a rotating bed of adsorbent material and sequentially rotating the bed through the steps of:
- (a) passing organic vapor-laden gas in a direction normal to said bed through a first section for adsorption of organic vapors and to produce a gas stream having a reduced quantity of organic vapor;
- (b) passing a hot, partially inert regenerating gas in a direction normal to said bed through a second section to substantially regenerate said adsorbent material and to provide a partially inert gas stream rich in organic vapor, a portion of which forms a product stream;
- and
- (c) passing a hot inert gas, substantially free of organic vapor, in a direction countercurrent to the flow of said organic vapor-laden gas and normal to said bed through a third section to provide more complete regeneration of said adsorbent material.
Dependencies are inferred from the claim text.