Process and system for drying coal in a fluidized bed by partial combustion
US4324544A · kind A · utility
45Cited by
12References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 12, 1980 |
| Grant date | Apr 13, 1982 |
| Priority date | — |
| Expiry date | Jun 12, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF26B3/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process and system are disclosed for drying coal in a fluidized bed wherein the heat necessary for drying is provided by partial combustion of the coal in the bed. Proper control of the reaction parameters, particularly reaction temperature, provides an acceptably high drying rate along with an acceptably low production of pollutants in the off-gases. A particular embodiment of the invention provides for cooling of the dried coal by mixing such dried coal with an additional stream or additional streams of undried coal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.