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AssigneeFraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
InventorsClemens Backhaus, Hubert Werneke
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A membrane separation process for the enrichment of at least one gas component in a gas flow, especially for the oxygen enrichment of the air and/or for the enrichment of carbon dioxide using a membrane separation device (10), which is a part of a membrane separation unit (2) and includes at least one membrane. The gas is separated into a retentate (8), which is discharged on the retentate side (12) of the membrane, and a permeate (9), which is discharged on the permeate side (11) of the membrane. To allow the separation of gases or the enrichment of a gas component in a gas flow at a low energy consumption rate and at low investment and production costs, the pressure of the gas stream is lowered before entering the membrane separation unit (2) so that pressure on the permeate side (11) is lower as compared with the inlet pressure.
1-28. (canceled)
A membrane separation process for the enrichment of at least one gas component in a gas flow using a membrane separation device which is a part of a membrane separation unit and has at least one membrane for separation of the gas flow into a retentate, which is discharged on a retentate side of the at least one membrane, and a permeate, which is discharged on a permeate side of the at least one membrane, comprising the steps of:
A membrane separation process for the enrichment of at least one gas component in a gas flow using a membrane separation device which is part of a membrane separation unit and includes at least one membrane, the gas flow being separated into a retentate, which is discharged on a retentate side of the membrane, and a permeate, which is discharged on a permeate side of the membrane, comprising the steps of delivering the gas flow to the membrane separation unit at ambient pressure, the retentate being discharged from the membrane separation unit at an outlet pressure of that has been lowered below ambient pressure and the pressure on the permeate side having been lowered relative to the outlet pressure of the retentate.
A membrane separation system for the enrichment of at least one gas component in a gas flow, comprising:
Dependencies are inferred from the claim text.