Air cleaning adsorption process
AssigneeGas Developments Corporation
InventorsRobert A. Macriss, William F. Rush, Sanford A. Weil
Life of this patent
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Abstract
A process for air cleaning by the removal of water and one or more undesirable gases such as NO.sub.x, SO.sub.x and CO.sub.2 by a continuous atmospheric pressure and low pressure drop system wherein the adsorbent body is a wheel of thin sheets or layers of fibrous material containing about 10 to 90% by weight of a finely divided crystalline molecular sieve material. The process is especially useful for the removal of NO.sub.2 from confined areas.
Claims7
A process for air cleaning by the removal of water and one or more undesired gaseous components selected from the group consisting of NO.sub.x, SO.sub.x and CO.sub.2 by a continuously adsorbing and regenerating of the adsorbent body, atmospheric pressure and low pressure drop process comprising the steps:
- continuously passing air to be treated through an adsorbent body consisting essentially of thin sheets or layers of fibrous material containing about 10% to about 90% by weight of a finely divided crystalline molecular sieve material for a time sufficient to permit the molecular sieve material to adsorb the NO.sub.x, SO.sub.x and CO.sub.2 from said air to an acceptable pollutant level and removing dry and clean product air in a first phase;
- and
- regenerating said adsorbent body by continuously passing countercurrent to the treatment air through said adsorbent body in a second phase a portion of the dry and clean product air heated to a temperature of more than about 300.degree. F. removing the pollutants from said adsorptive body and then passing a portion of the dry and clean product air countercurrently through said adsorbent body in a third phase until the desired amount of moisture is removed and the adorbent body cooled for recycle of the adsorbent body to the first phase.
Dependencies are inferred from the claim text.