Electrodialysis device for the desalination of water for oil and gas applications
US12268993B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 13, 2018 |
| Grant date | Apr 8, 2025 |
| Priority date | — |
| Expiry date | Jan 8, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A20/131
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to an electrodialysis device for the desalination of water for oil and gas applications comprising: a membrane stack comprising alternating cation- and anion-exchange membranes (2.1, 2.3) and a plurality of spacers (2.2, 2.4), each spacer being arranged between two successive membranes; wherein at least one of the spacers (2.2, 2.4) comprises a recessed area (3.2) and a non-recessed area (3.3), a central opening (3.1) within the recessed area (3.2); the spacer (2.2, 2.4) is provided with at least four orifices (3.4, 3.5) within the non-recessed area (3.3); and with respective channels (3.6) which connect at least two of the orifices (3.4) with the central opening (3.1); and one membrane (2.1, 2.3) is accommodated in the recessed area (3.2).The invention also relates to a water desalination process using the electrodialysis device mentioned above.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.