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NOx FORMATION IN CO-PROCESSING OF USELESS TIRES IN THE CEMENT INDUSTRY CLINKER KILNS
| Content Provider | Semantic Scholar |
|---|---|
| Author | Signoretti, Valdir Tesche |
| Copyright Year | 2005 |
| Abstract | Much industrial waste can be co-processed in the clinker kilns, resulting in their thermal destruction as well as taking advantage of their net calorific value in the process. The useless tires are employed in the co-processing in the clinker kilns as an alternative fuel, allowing a great deal of destruction. The burn of these used tires represents a discard alternative solution that constitutes an environmental problem as well as replacing the use of fossil fuels. This work analyzes the NOx formation process inside the clinker kiln with the burn of the useless tires along with petcoke. In the burn process are analyzed: the feeding tires rate in the kiln, the scrap tires dimensions, the local kiln introduction, the temperature, the air/fuel ratio and others influential factors. Through a simultaneous reactions model, the factors that decrease the NOx emission in the kiln that co-process the tires and the possible levels of substitution of the main fuels are analyzed. The analyses still take account the burn being done in a rotary kiln endowed with cyclone, a kiln with preheater and precalciner (with secondary fuel burn), and if there is or not a cooled clinker system grid with tertiary air supply. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://www.abcm.org.br/anais/cobem/2005/PDF/COBEM2005-1366.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
