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.

Abstract: A process and apparatus are provided for recovering volatile vapors from an air-volatile mixture. The process includes cooling the mixture to condense volatile liquid vapors and moisture, collecting the condensed volatile liquid vapors and moisture, circulating the cooled and dehumidified mixture through a bed of adsorbent, and desorbing and recovering the volatile liquids from the bed. The apparatus includes a refrigeration unit (24), a cooler (20) for cooling the mixture, two reaction vessels (36, 36') each including a bed of adsorbent (38, 38'), a pump (50), an absorber tower (72) 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.

Abstract: A system is provided for recovering volatile-liquid vapor from an air-volatile liquid vapor mixture. The system includes a reaction vessel having a bed of adsorbent for adsorbing volatile liquid vapor and producing relatively volatile liquid vapor-free air. The system further includes a liquid seal vacuum pump for regenerating the adsorbent, a first conduit for circulating the air-volatile liquid vapor mixture through the system and a second conduit for circulating seal liquid to the vacuum pump. A cyclonic separator separates the seal liquid from the air-volatile liquid vapor mixture produced during bed regeneration. A mechanism is also provided for removing the volatile liquid vapor from the air-volatile liquid vapor mixture separated from the seal liquid. A method of recovering volatile liquid vapor from an air-volatile liquid vapor mixture is also disclosed.

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, a reaction vessel including a bed of adsorbent, a pump, an absorber tower and a conduit system for circulating the mixture from the cooler to the vessel to the pump to the absorber tower. Heat may be recovered from the refrigerant and used to heat the bed during desorption.