Zeolite adsorbents having a high external surface area and uses thereof
US10888837B2 · kind B2 · utility
0Cited by
10References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2016 |
| Grant date | Jan 12, 2021 |
| Priority date | — |
| Expiry date | Mar 28, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention concerns the use, for gas separation, of at least one zeolite adsorbent material comprising at least one FAU 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 and 2.5. The invention also concerns a zeolite adsorbent material having an Si/Al ratio such that 1≤Si/Al<2.5, a mesoporous volume of between 0.08 cm3·g−1 and 0.25 cm3·g−1, a (Vmicro−Vmeso)/Vmicro ratio of between −0.5 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.