Zeolite adsorbent in the form of low-tortuosity agglomerates
US10940458B2 · kind B2 · utility
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6References
16Claims
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Key dates
| Filing date | Jun 28, 2017 |
| Grant date | Mar 9, 2021 |
| Priority date | — |
| Expiry date | Jun 28, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Provided is a zeolite-based adsorbent in the form of agglomerates, where the adsorbent having a tortuosity factor, calculated from the pore distribution determined by mercury intrusion porosimetry, of greater than 1 and less than 3. The adsorbent also has a porosity as determined by mercury intrusion porosimetry of between 25% and 35%. The adsorbent is useful in the field of separations in particular in a process for separating para-xylene from aromatic hydrocarbon isomer fractions containing 8 carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.