Method and device for entrained-flow sulfation of flue gas constituents
US8084006B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 24, 2008 |
| Grant date | Dec 27, 2011 |
| Priority date | — |
| Expiry date | Oct 24, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E20/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for entrained-flow sulfation of sulfatable flue gas constituents of an oxygen-containing flue gas in an incineration plant having at least one combustion chamber and a waste gas burnout zone includes passing the oxygen-containing flue gas through the waste gas burnout zone. The oxygen-containing flue gas is tempered by lowering a temperature of the oxygen-containing flue gas. The oxygen-containing flue gas is passed through a sufation zone so that the oxygen-containing flue gas has a temperature interval of between 700 and 900° C. during a time period of between 2 and 20 s so as to convert sulfatable flue gas constituents present in the oxygen-containing flue gas to solid sulfate-containing ash particles so as to reduce a halide concentration in ash deposits thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.