Generating oxygen-depleted air useful for increasing methane production
US5133406A · kind A · utility
141Cited by
12References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 5, 1991 |
| Grant date | Jul 28, 1992 |
| Priority date | — |
| Expiry date | Jul 5, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for generating oxygen-depleted air for injection into a subterranean coal seam for increasing production of methane. Air and produced fluids comprising methane are input into a fuel cell power system; and fuel cell power system exhaust comprising oxygen-depleted air is injected into the coal seam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.