Process and apparatus for producing nitrogen
US5704229A · kind A · utility
4Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1996 |
| Grant date | Jan 6, 1998 |
| Priority date | — |
| Expiry date | Dec 18, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25J2245/42
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An air separation process and apparatus employing a single column nitrogen generator. Part of the incoming air stream to be separated is expanded and combined with a waste stream. After partial warming of the combined stream, the combined stream is expanded and then utilized to liquefy part of the incoming air and for refrigeration purposes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.