Removal of branched dibenzothiophenes from hydrocarbon mixtures via charge transfer complexes with a TAPA-functionalized adsorbent
US8138369B2 · kind B2 · utility
0Cited by
2References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2008 |
| Grant date | Mar 20, 2012 |
| Priority date | — |
| Expiry date | Jan 19, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2998
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for producing an adsorbent where a metal oxide is reacted with an alkoxy silane to produce an epoxy-functionalized metal oxide. This product is reacted with an amino-substituted propionic acid and a nitro-substituted fluorenone, and this product is grafted to the epoxy-functionalized metal oxide. This grafted product is the adsorbent, which may be contacted with a hydrocarbon mixture having at least one sulfur containing compound in order to remove this sulfur containing compound. Also disclosed is a process for adding polymerization groups to an adsorbent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.