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US 11,092,292 B2Granted
Method for reheating an atmospheric vaporizer using a gas originating from a cryogenic air separation unit
AssigneeL'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
InventorsJean-Marc Peyron, Fabrice Rivoal, Lian-Ming Sun
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Abstract
In a method for reheating an atmospheric vaporizer, a cryogenic liquid is vaporized by heat exchange with ambient air in the atmospheric vaporizer and to reheat the vaporizer, a gas is sent thereto at a temperature of at least 0° C., this gas originating from a cryogenic distillation air separation unit.
Claims8
A method for reheating, even de-icing, an atmospheric vaporizer in which:
- i) in a normal operation, vaporizing a cryogenic liquid originating from a source by heat exchange with ambient air in the atmospheric vaporizer, wherein the cryogenic liquid has a main component of oxygen, nitrogen or argon;
- and
- ii) in a reheating phase, no longer sending the cryogenic liquid from the source to the atmospheric vaporizer but, instead, sending a gas to the atmospheric vaporizer at a temperature of at least 0° C.,
- wherein said gas originates from a cryogenic distillation air separation unit,
- wherein the gas sent to the atmospheric vaporizer in the reheating phase is a stream of air purified of water and of carbon dioxide taken from the air supply of the cryogenic distillation air separation unit.
2 more elements
Dependencies are inferred from the claim text.