Reducing pollutant emissions from a spreader-stoker-fired furnace by stoichiometric control
US4592289A · kind A · utility
7Cited by
13References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 18, 1983 |
| Grant date | Jun 3, 1986 |
| Priority date | — |
| Expiry date | Oct 18, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E20/34
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Methods and apparatus for reducing pollutant emissions, and in particular, for reducing NO.sub.x and particulate emissions, from spreader-stoker-fired furnaces. A combustible material is introduced into the spreader-stoker-fired furnace and combusted while the stoichiometric ratio of oxygen to combustible material in different regions of the furnace is carefully controlled. Control of the stoichiometric ratio is accomplished by controlling the amount of air injected into different regions of the furnace and by controlling the amount of smaller particles of combustible material or fines introduced into the furnace.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.