Hydrotalcite sulfer oxide sorption
US5928496A · kind A · utility
13Cited by
9References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 13, 1997 |
| Grant date | Jul 27, 1999 |
| Priority date | — |
| Expiry date | Jun 13, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2255/50
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Hydrotalcite-like materials are stable in the crystalline oxide structure and essentially reversible in anion exchange. A novel process of sulfur oxide sorption is provided utilizing these hydrotalcite materials as contact solids. Large crystalline sheet materials having increased sorption of SO.sub.x are provided by incorporation of certain organic acid anionic species to modify the hydrotalcite/brucite structure. Typical industrial applications include sulfur removal from fluid catalyst cracking process, cold-side combustion gas sulfur abatement and cleaner coal gasification.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.