Guard layers for rapid cycle pressure swing adsorption devices
US8303683B2 · kind B2 · utility
3Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2008 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Mar 4, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86863
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Guard layers are employed in the adsorbent beds of rapid cycle pressure swing adsorption (RCPSA) devices to protect the adsorbent therein from certain contaminants (e.g. water vapour). Conventional PSA devices typically pack the guard layer with as much guard material as is practical. In RCPSA devices however, the performance of the guard layer can be improved by using a reduced amount of guard material and increasing access to it. Such embodiments are characterized by guard layers with a channel fraction of greater than 50%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.