Apparatus for diffusion-gap thermal desalination
US9770673B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 8, 2012 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | May 20, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A20/124
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A thermal distillation apparatus including evaporation surfaces that are wetted with a solution, and from which at least some of the volatile solvent contained in the solution evaporates, condensers having an external surface in close proximity to, but not touching, a corresponding one of the one or more evaporation surfaces, and on which vapors of the solvent condense, releasing thermal energy that heats a flow of the solution moving upward within the condensers, spacers that prevent contact between the evaporating surfaces and the condensers, wherein spaces between the evaporating surfaces and the condensers are filled with a gaseous mixture composed of solvent vapor and one or more non-condensable gases, and except for diffusion of the solvent vapor relative to the non-condensable gases, the gaseous mixture is stationary.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.