Tri-firing wood waste and tire-derived fuel with coal in a cyclone boiler
- Foster Wheeler Environmental Corp., Sacramento, CA (United States); and others
During 1994 and 1995, parametric tests of wood/coal co-firing and wood/tire-derived fuel (TDF)/coal tri-firing were conducted at the Allen Fossil Plant in Memphis, Tennessee. The wood used was sawdust from local wood processing industries, the TDF was supplied from a local tire processor, and the coal employed was a Utah bituminous coal. The tests were conducted to evaluate the influence of co-firing and tri-firing on fuel yard operations; boiler operations with emphasis on stability, efficiency, operating temperatures, and slagging and fouling; and airborne emissions with emphasis on opacity, SO{sub 2} and NO{sub x} formation and control. These tests represented progression from 1994, when co-firing sawdust and coal was tested using an interior province bituminous coal as the base fuel. Fuel blends tested included 0% to 5% TDF and 0% to 20% sawdust. Tests were conducted over 4-hour periods with data taken every 10 minutes, and the results were, consequently, parametric in nature. Boiler stability was measured by computing the standard deviation as a percentage of the mean. Efficiency was calculated on a heat-loss basis. Flame temperatures were calculated using standard computer codes, and furnace exit temperatures were measured using optical pyrometry. Slagging and fouling were evaluated by analyzing the temperatures of the gaseous combustion products entering the air heater as a function of elapsed time during a test. Airborne emissions were evaluated using plant CEMS data. Factors influencing NO{sub x} emissions also were considered.
- OSTI ID:
- 478629
- Report Number(s):
- CONF-960958-; TRN: 97:002640-0020
- Resource Relation:
- Conference: Partnerships to develop and apply biomass technologies, Nashville, TN (United States), 15-19 Sep 1996; Other Information: PBD: 1996; Related Information: Is Part Of Bioenergy `96: Partnerships to develop and apply biomass technologies. Volume I and II; PB: 1171 p.
- Country of Publication:
- United States
- Language:
- English
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