Sludge incineration in single stage combustor with gas scrubbing followed by afterburning and heat recovery
US4917027A · kind A · utility
10Cited by
6References
11Claims
0Family size
Inventors
Key dates
| Filing date | Apr 10, 1989 |
| Grant date | Apr 17, 1990 |
| Priority date | — |
| Expiry date | Apr 10, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/40
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method for sludge disposal in a single compartment furnace in which fouling of the apparatus by low melting eutectics and/or the release to the atmosphere of heavy metal fumes is avoided by limiting the temperature in the combustion bed and in the overlying freeboard to be below the eutectic melting or heavy metal fuming point then immediately cooling and scrubbing the gases and only thereafter subjecting the resulting scrubbed and cooled gases to high temperature afterburning carried out with appropriate heat exchange functions. Apparatus is also disclosed for carrying out the method in a fluidized bed reactor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.