Method and apparatus for reducing acid pollutants in smoke
US4704972A · kind A · utility
21Cited by
5References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 13, 1987 |
| Grant date | Nov 10, 1987 |
| Priority date | — |
| Expiry date | Jan 13, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method and apparatus for reducing the amount of water-soluble acid pollutants contained in hot smoke or fumes produced by combustion, such as the incineration of household garbage, in the course of which dust is removed from the smoke and the smoke is then cooled before being released into the atmosphere. A heat exchange process involving a cold fluid is used in the cooling phase, in which the smoke is cooled to a temperature below its dew point so that the resulting total or partial condensation of the water vapor contained in the smoke traps acid pollutants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.