Process for desulfurization of hot waste gas
US4560543A · kind A · utility
4Cited by
10References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 1984 |
| Grant date | Dec 24, 1985 |
| Priority date | — |
| Expiry date | May 30, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D53/501
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Hot waste gas is desulfurized in a spray drying-absorption process performed in an absorption chamber wherein a fluidized layer of partially reacted absorbent is maintained in the bottom area. Improved conditions are obtained for the reaction between absorbent and sulfur oxides in the waste gas, whereby the use of inexpensive absorbents of relatively low reactivity, such as limestone, comes into consideration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.