Hollow fiber membrane module for direct contact membrane distillation-based desalination
US11534720B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 23, 2018 |
| Grant date | Dec 27, 2022 |
| Priority date | — |
| Expiry date | Apr 23, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A20/131
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Exemplary embodiments in desalination by direct contact membrane distillation present a cylindrical cross-flow module containing high-flux composite hydrophobic hollow fiber membranes. The present embodiments are directed to a model that has been developed to describe the observed water production rates of such devices in multiple brine feed introduction configurations. The model describes the observed water vapor production rates for different feed brine temperatures at various feed brine flow rates. The model flux predictions have been explored over a range of hollow fiber lengths to compare the present results with those obtained earlier from rectangular modules which had significantly shorter hollow fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.