Method for zonal injection of chemicals into a furnace convective pass to reduce pollutants from flue gases
US7622093B2 · kind B2 · utility
4Cited by
7References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 29, 2008 |
| Grant date | Nov 24, 2009 |
| Priority date | — |
| Expiry date | Oct 29, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S423/05
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Zonal injection of varying compositions of chemicals, particularly an ammonia-based reagent and hydrocarbon, through injection lances arranged in a grid formation to define planar zones in a furnace convective pass of a furnace. The supply of chemicals is controlled so as to be individually determined for each discrete zone of the grid depending on conditions in that zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.