Production of membrane-derived nitrogen from combustion gases
US4781907A · kind A · utility
57Cited by
23References
12Claims
0Family size
Inventor
Key dates
| Filing date | Dec 4, 1985 |
| Grant date | Nov 1, 1988 |
| Priority date | — |
| Expiry date | Dec 4, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
High-purity nitrogen is recovered from combustion gas such as exhaust stack gases, by utilizing selective gas-permeable membranes to separate by rejection, nitrogen from the other gases present in the gas stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.