Accession Number : ADD000230

Title :   Low Pressure Air Dehydrator.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Howell,Clarence F ; Brownrigg,John D ; Cooper,George H

Report Date : 02 Apr 1974

Pagination or Media Count : 5

Abstract : The patent describes a method and apparatus for regenerating an adsorbent bed. The invention is directed to an apparatus and method for removing impurities from fluid stream such as moisture from a gaseous air stream which incorporates a precooling concept to cool a feed stream to be purified and to cool a purge gas which is used in the reactivation of an adsorbent bed which is not on stream. The invention combines the principle of both heated and heatless dryers. It has been found through this precooling concept, particularly through the precooling of the purge gas, that the time required to reactivate an adsorbent bed is significantly reduced and/or it significantly reduces the equipment requirements of a given system for the same period of time.

Descriptors :   *Adsorbents, *Patents, *Dehydration, *Driers(Apparatus), Regeneration(Engineering), Cooling, Beds(Process engineering), Gases

Subject Categories : Industrial Chemistry and Chemical Processing

Distribution Statement : APPROVED FOR PUBLIC RELEASE