Method and apparatus for recovering water from atmospheric air
US7306654B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jan 30, 2004 |
| Grant date | Dec 11, 2007 |
| Priority date | — |
| Expiry date | Oct 3, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/16
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of separating water from air is provided comprising the steps of (a) contacting air having water vapor with an hygroscopic liquid mixture to produce a water rich hygroscopic liquid mixture, (b) heating at least a portion of the water rich hygroscopic liquid mixture to produce a gaseous mixture including water vapor and at least one other gaseous component, (c) condensing at least a portion of the water vapor in the gaseous mixture to produce liquid water and a depleted gaseous mixture at a first pressure, and (d) removing at least a portion of the at least one other gaseous component to maintain the first pressure below a predetermined pressure, wherein the depleted gaseous mixture is in fluid communication with the water rich hygroscopic liquid mixture. An absorber vessel is also provided for effecting the method of separating water from air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.