Method and apparatus for regenerating used activated carbon
US4192962A · kind A · utility
7Cited by
2References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 19, 1978 |
| Grant date | Mar 11, 1980 |
| Priority date | — |
| Expiry date | May 19, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF27B1/08
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
In a vertical electric furnace having vertically spaced annular electrodes for regenerating used activated carbon by passing electric current therethrough, the inner cross-sectional area of the furnace is gradually decreased and then gradually increased between the electrodes thus forming a throat. With this construction, layers of the used activated carbon in which the resistance value varies with the temperature gradient are formed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.