Process for obtaining high concentration argon by pressure-swing-adsorption
US4529412A · kind A · utility
32Cited by
15References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1983 |
| Grant date | Jul 16, 1985 |
| Priority date | — |
| Expiry date | Nov 17, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2256/18
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for obtaining high concentration argon from air by means of pressure-swing-adsorption, characterized by passing air through a zeolite molecular sieve-packed adsorption apparatus and a carbon molecular sieve-packed adsorption apparatus in this order, subjecting the air to pressure-swing-adsorption operation independently in the above pieces of adsorption apparatus, thereby obtaining concentrated argon and high purity oxygen simultaneously.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.