Process for the combustion of waste material with production of thermal energy
US5797336A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 1996 |
| Grant date | Aug 25, 1998 |
| Priority date | — |
| Expiry date | Oct 24, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P80/15
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Waste is burnt in a furnace chamber (1). The oxygen-containing flue gases resulting in this process are introduced into a fluidized bed in an afterburning chamber (5) and reburnt. Solids discharged with the flue gases from the afterburning chamber (5) are separated from the flue gases in a dust separator (9) and recycled to the afterburning chamber (5), so that a circulating fluidized bed is formed, which produces a very homogeneous temperature distribution in the afterburning chamber (5) and at the same time permits highly efficient cooling of the flue gases. A secondary oxygen feed for the afterburning is dispensed with, which enables a decrease in size both of the afterburning chamber (5) and also of the downstream heat-recovery and gas cleaning devices and improvement in efficiency resulting therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.