Synthesis of ultra-small pore aluminosilicates by controlled structural collapse of zeolites
US9403148B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2014 |
| Grant date | Aug 2, 2016 |
| Priority date | — |
| Expiry date | Nov 3, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of forming the highly selective ultra-small pore amorphous adsorbent includes introducing an ion-exchange material to a sodium aluminosilicate zeolite such that an ion-exchanged zeolite forms, calcinating the ion-exchanged zeolite at a calcination temperature such that the ion-exchanged zeolite collapses and forms the decationized amorphous adsorbent, and introducing a back ion-exchange material to the decationized amorphous adsorbent such that the highly selective ultra-small pore amorphous adsorbent forms. The highly selective ultra-small pore amorphous adsorbent has a pore aperture size operable to permit carbon dioxide to adsorb into the amorphous adsorbent and operable to deny methane from adsorbing into the amorphous adsorbent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.