Method of conditioning flue gas and separating the particles therefrom
US4325711A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 1980 |
| Grant date | Apr 20, 1982 |
| Priority date | — |
| Expiry date | May 15, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/25
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The collection characteristics of particles entrained in a particle-laden gas for separation by the commonly used methods for removing particles from a gas stream are improved by injecting into the gas stream a conditioning agent comprising diammonium phosphate and urea. The conditioning agent can be added to the gas stream either at low temperatures or at high temperatures, in both cases giving rise to significant improvements in emission characteristics. The additive of the present invention has a very significant advantage over prior art additives of substantially equal emission improvement characteristics of greatly reducing or substantially eliminating buildup of hard-to-remove deposits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.