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Abstract

A process and apparatus are provided for recovering volatile liquid vapors from an air-volatile liquid vapor mixture. The process includes: (1) cooling the mixture to condense volatile liquid vapors and moisture; (2) collecting the condensed volatile liquid vapors and moisture; (3) circulating the cooled and dehumidified mixture through a bed of adsorbent; and (4) desorbing and recovering the volatile liquids from the bed. The apparatus includes a refrigeration unit, a cooler for cooling the mixture, two reaction vessels each including a bed of adsorbent, a pump, an absorber tower and a valve and conduit system for circulating the mixture through the various components of the apparatus. Heat may be recovered from the refrigerant and used to heat the bed during desorption.

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First Claim