Double column multiple condenser-reboiler high pressure nitrogen process
US4453957A · kind A · utility
37Cited by
10References
18Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 2, 1982 |
| Grant date | Jun 12, 1984 |
| Priority date | — |
| Expiry date | Dec 2, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25J2215/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A cryogenic process to efficiently produce large quantities of nitrogen gas at elevated pressure by use of a double column and multiple condenser-reboilers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.