Method for producing oxygen by adsorption separation from air
US5223004A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1991 |
| Grant date | Jun 29, 1993 |
| Priority date | — |
| Expiry date | Dec 27, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2259/402
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of adsorption separation of gases of the kind which regenerates the adsorbant by pressure viariation and used two adsorbers, wherein the recompression stage includes at least one recompression stage using the oxygen produced, and a final recompression stage up to the high point of the cycle pressure using air intake without draw-off; and wherein the pressure high-point of the cycle is selected between 1.2 and 2 .times.10.sup.5 Pa and the pressure low-point is selected between 0.3-0.7.times.10.sup.5 Pa, at least the final part of the desorption stage being carried out by pumping. The method is essentially relevant to the production of oxygen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.