Process and installation for the separation of air by permeation, for the production of nitrogen
US5829272A · kind A · utility
10Cited by
5References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 28, 1997 |
| Grant date | Nov 3, 1998 |
| Priority date | — |
| Expiry date | Feb 28, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D53/227
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process and installation for the separation of air by permeation, for the production of high purity nitrogen. The installation comprises in series an air compressor (2), a refrigerator (3) cooled by air or water, a unit (4) for filtering out oil and water, an air reheater (5) and a permeator (6). The air reheater (5) is provided with a device (18A) for adjusting the temperature as a function of the temperature of the final refrigeration fluid that cools the compressed air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.