Gas humidification system using water permeable membranes
US5996976A · kind A · utility
53Cited by
19References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1996 |
| Grant date | Dec 7, 1999 |
| Priority date | — |
| Expiry date | Apr 30, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention provides a gas humidifier for the humidification of reactant gases supplied to electrochemical devices such as electrolyzers and fuel cells. The humidifier provides a water permeable member, such as a polymer membrane in the form of a tube, sheet, tubulated sheet and the like, that can be saturated with water to allow evaporation of water into a gas stream passing over a water permeable member. The humidifier is compact and lightweight, yet provides efficient humidification of gases at flow rates as low as about 0.1 grams per minute of water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.