Process and apparatus for recovering vapor
AssigneeJordan Holding Company
InventorEdward Menzenski
Life of this patent
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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, 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.
Claims15
A process for recovering volatile liquid vapors from an air-volatile liquid vapor mixture, comprising the steps of:
- collecting the air-volatile liquid vapor in a bladder tank;
- feeding the collected air-volatile liquid vapor mixture from the bladder tank to a cooler at a predetermine rate of flow;
- cooling the air-volatile liquid vapor mixture to condense volatile liquid vapor and moisture from the air-volatile liquid vapor mixture;
- collecting the condensed volatile liquid vapor and moisture;
- circulating the cooled and dehumidified air-volatile liquid vapor mixture through a bed of adsorbent having an affinity for the volatile liquid whereby volatile liquid is adsorbed on said bed and a substantially volatile liquid vapor-free air stream is exhausted;
- and
- desorbing and recovering the volatile liquid from said bed by pulling a vacuum on said bed to draw volatile liquid vapor previously adsorbed by said bed from said bed and pumping the volatile liquid vapor laden air through an adsorber tower having a countercurrent flow of solvent for removing volatile liquid from the air drawn from the bed.
An apparatus for recovering volatile liquid vapor from an air-volatile liquid vapor mixture, comprising:
- a bladder tank for temporarily storing the air-volatile liquid vapor mixture prior to processing;
- a cooler for cooling the air-volatile liquid vapor mixture so as to condense volatile liquid vapor and moisture from the air-volatile liquid vapor mixture;
- a refrigeration unit for providing cooling to said cooler;
- means for feeding the air-volatile liquid vapor mixture from said bladder tank to said cooler at a predetermined rate of flow;
- a reaction vessel including a bed of adsorbent having an affinity for the volatile liquid whereby volatile liquid is adsorbed on the bed and relatively volatile liquid vapor free air is produced;
- a pump for drawing a vacuum on the bed in the reaction vessel so as to recover the previously adsorbed volatile liquid vapor concentrated in air;
- an absorber tower for removing volatile liquid vapor from the air-concentrated volatile liquid vapor mixture being drawn by said pump from the bed during regeneration of the bed;
- and
- conduit means for circulating the air-volatile liquid vapor mixture from said cooler to said reaction vessel to said pump to said absorber tower.
A process for recovering volatile liquid vapors from an air volatile liquid vapor mixture, comprising the steps of:
- collecting and feeding the air-volatile liquid vapor mixture to a cooler at a predetermined rate of flow of between 10-1000 scfm;
- cooling the air-volatile liquid vapor mixture to at least -10.degree. F. so as to condense volatile liquid vapor and moisture from the air-volatile liquid vapor mixture;
- collecting the condensed volatile liquid vapor and moisture;
- circulating the cooled and dehumidified air-volatile liquid vapor mixture through a bed of adsorbant having an affinity for the volatile liquid whereby volatile liquid is adsorbed on said bed and a substantially volatile liquid vapor-free air stream is exhausted;
- and
- desorbing and recovering the volatile liquid from said bed by pulling a vacuum on said bed to draw volatile liquid vapor previously adsorbed by said bed from said bed and pumping the volatile liquid vapor laden air through an absorber tower having a countercurrent flow of solvent for removing volatile liquid from the air drawn from the bed.
An apparatus for recovering volatile liquid vapor from the air-volatile liquid vapor mixture, comprising:
- a cooler for cooling the air-volatile liquid vapor mixture so as to condense volatile liquid vapor and moisture from the air-volatile liquid vapor mixture;
- a refrigeration unit for providing cooling to said cooler;
- means for feeding the air-volatile liquid vapor mixture to said cooler at a predetermined rate of flow of between 10-1000 scfm;
- a reaction vessel including a bed of adsorbent having an affinity for the volatile liquid whereby volatile liquid is adsorbed on the bed and relatively volatile liquid vapor free air is produced;
- a pump for drawing a vacuum on the bed in the reaction vessel so as to recover the previously adsorbed volatile liquid vapor concentrated in air;
- an absorber tower for removing volatile liquid vapor from the air-concentrated volatile liquid vapor mixture being drawn by said pump from the bed during regeneration of the bed;
- and
- conduit means for circulating the air-volatile liquid vapor mixture from said cooler to said reaction vessel to said pump to said absorber tower.
Dependencies are inferred from the claim text.