Desulfurization and low temperature regeneration of carbonaceous adsorbent
US4219537A · kind A · utility
53Cited by
6References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 31, 1978 |
| Grant date | Aug 26, 1980 |
| Priority date | — |
| Expiry date | Oct 31, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S502/517
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A gas desulfurization process is disclosed wherein a particulate, partially oxidized coal is used as an adsorbent for gaseous sulfur oxides and is regenerated by contact with a low temperature recycled stream of its own desorbed off-gas containing at least 40% steam and 15% SO.sub.2. A bleed stream of the desorbed off-gas may be reacted with coal at 1150.degree. F. to 1550.degree. F. to partially oxidize the coal and transform it into an adsorbent suitable for use in the adsorber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.