Removal of ammonia and carbon dioxide from fuel cell stack water system by steam stripping
US4816040A · kind A · utility
17Cited by
12References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1987 |
| Grant date | Mar 28, 1989 |
| Priority date | — |
| Expiry date | Oct 15, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D5/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The fuel cell power plant has a closed water circulation system whose only source of fresh water is the electrochemical reaction in the power section. The water becomes contaminated with ammonia and carbon dioxide in the fuel contact cooler and the ammonia and carbon dioxide are stripped out of the water by steam produced by operating the plant. The ammonia and carbon dioxide-laden steam is vented from the plant. The amount of water lost from the plant as steam is less than the amount of available water produced in the electrochemical reaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.