Process for the thermal treatment of waste material
US5915311A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 1996 |
| Grant date | Jun 29, 1999 |
| Priority date | — |
| Expiry date | Oct 24, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23G5/027
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The waste material is degasified under the action of heat in a pyrolysis chamber (2). The volatile degasifying products are subjected to afterburning with supply of oxygen in an afterburning chamber (4a or 4b or 4c) designed as a fluidized-bed reactor. The solids discharged from the afterburning chamber (4a or 4b or 4c) are separated off from the flue gas stream in a dust separator (8) and, preferably cooled in an external fluid-bed cooler, are recycled to the afterburning chamber (4a or 4b or 4c). The temperatures of above 2500.degree. C., which are produced in the afterburning of the carbonization gases having a high heating value (minimum 8000 kJ/m.sup.3 (S.T.P.), can be controlled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.