Hybrid RO/PRO system
US7871522B2 · kind B2 · utility
39Cited by
6References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2008 |
| Grant date | Jan 18, 2011 |
| Priority date | — |
| Expiry date | Mar 10, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A20/131
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A system which includes a separation element (11) employing semipermeable membrane material (17), which system is designed so that it can operate either in an RO mode to produce high quality water or in a PRO mode to generate power from two aqueous solutions of different salt concentrations. In a preferred embodiment, a rotary pressure transfer device (29) is included to transfer pressure from an outlet stream exiting the separation element to an inlet stream being supplied to the separation element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.