Removal of sulfur dioxide from process gas using treated oil shale and water
US4093026A · kind A · utility
278Cited by
20References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 15, 1977 |
| Grant date | Jun 6, 1978 |
| Priority date | — |
| Expiry date | Apr 15, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S208/951
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Sulfur dioxide is removed from a process gas by passing the process gas through a fragmented permeable mass of particles containing treated oil shale and including alkaline earth oxides. Water in the fragmented mass combines with alkaline earth oxides in the fragmented mass and sulfur dioxide in the process gas with resultant removal of sulfur dioxide from the process gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.