Integrated method of air separation and of energy generation and plant for the implementation of such a method
AssigneeL'Air Liquide, Societe Anonyme a Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procedes Georges Claude
InventorAlain Guillard
Life of this patent
Estimating the term…
Abstract
In an integrated method of air separation, a plant includes at least one first air separation unit (1, 101), a first air compressor (13), a first combustion chamber (17), a first expansion turbine (19), a second air compressor (15), a second combustion chamber (23) and a second expansion turbine (25) and a third air compressor (21) in which compressed air is sent from the first air compressor to the first combustion chamber and to the first air separation unit, compressed air is sent from the second air compressor to the second combustion chamber and to the first air separation unit.
Claims28
Integrated method of air separation for the production of oxygen-enriched fluid and possibly nitrogen-enriched fluid in a plant comprising at least a first air separation unit (1) comprising at least two distillation columns, a first air compressor (13), a first combustion chamber (17), a first expansion turbine (19), a second air compressor (15), a second combustion chamber (23) and a second expansion turbine (25) and a third air compressor (21), in which compressed air is sent from the first air compressor to the first combustion chamber and to the first air separation unit, compressed air is sent from the second air compressor to the second combustion chamber and to the first air separation unit, air is sent from the third air compressor to the first air separation unit, combustion gas (27) is sent to the first expansion turbine from the first combustion chamber, combustion gas (29) is sent to the second expansion turbine from the second combustion chamber and a nitrogen-enriched gas (3), possibly pressurized, is sent from the first air separation unit upstream of the first expansion turbine and/or upstream of the second expansion turbine.
Integrated plant for air separation comprising at least one first air separation unit (1, 101) producing an oxygen-enriched fluid and possibly a nitrogen-enriched fluid, comprising at least two distillation columns, a first air compressor (13), a first combustion chamber (17), a first expansion turbine (19), a second air compressor (15), a second combustion chamber (23) and a second expansion turbine (25) and a third air compressor (21), means for sending compressed air from the first air compressor to the first combustion chamber and to the first air separation unit, means for sending compressed air from the second air compressor to the second combustion chamber and to the first air separation unit, means for sending air from the third air compressor to the first air separation unit, means for sending combustion gas (27) to the first expansion turbine from the first combustion chamber, means for sending combustion gas (29) to the second expansion turbine from the second combustion chamber and means for sending a nitrogen-enriched gas (3) from the first air separation unit upstream of the first expansion turbine and/or upstream of the second expansion turbine.
Dependencies are inferred from the claim text.