Zeolite adsorbents having a high external surface area and uses thereof
US10882002B2 · kind B2 · utility
6Cited by
13References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2016 |
| Grant date | Jan 5, 2021 |
| Priority date | — |
| Expiry date | Mar 21, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2256/24
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention concerns the use, for gas separation and/or gas drying, of at least one zeolite adsorbent material comprising at least one type A zeolite, said adsorbent having an external surface area greater than 20 m2·g−1, a non-zeolite phase (PNZ) content such that 0<PNZ≤30%, and an Si/Al atomic ratio of between 1.0 and 2.0. The invention also concerns a zeolite adsorbent material having an Si/Al ratio of between 1.0 and 2.0, a mesoporous volume of between 0.07 cm3·g−1 and 0.18 cm3·g−1, a (Vmicro−Vmeso)/Vmicro ratio of between −3 and 1.0, non-inclusive, and a non-zeolite phase (PNZ) content such that 0<PNZ≤30%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.