Pilot plant assessment of blend properties and their impact on critical power plant components
Abstract
A series of tests were performed to determine the effects of blending eastern bituminous coals with western subbituminous coals on utility boiler operation. Relative to the baseline bituminous coal, the testing reported here indicated that there were significant impacts to boiler performance due to the blending of the eastern and western coals. Results indicated that fuel blending can be used to adequately control flue gas emissions of both SO{sub 2} and NO{sub x} at the expense of reduced milling efficiency, increased sootblowing in the high-temperature and low-temperature regions of the boiler and, to a lesser extent, decreased collection efficiency for an electrostatic precipitator. The higher reactivity of the subbituminous coal increased the overall combustion efficiency, which may tend to decrease the impact of milling efficiency losses. The extent of these impacts was directly related to the percentage of subbituminous coal in the blends. At the lowest blend ratios of subbituminous coal, the impacts were greatly reduced.
- Publication Date:
- Research Org.:
- Univ. of North Dakota, Grand Forks, ND (United States). Energy and Environmental Research Center
- Sponsoring Org.:
- USDOE Assistant Secretary for Fossil Energy, Washington, DC (United States)
- OSTI Identifier:
- 578489
- Report Number(s):
- DOE/MC/30098-5320
ON: DE97002068; TRN: AHC29806%%26
- DOE Contract Number:
- FC21-93MC30098
- Resource Type:
- Technical Report
- Resource Relation:
- Other Information: PBD: Oct 1996
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 01 COAL, LIGNITE, AND PEAT; 20 FOSSIL-FUELED POWER PLANTS; BITUMINOUS COAL; SUBBITUMINOUS COAL; BOILERS; MIXING; EXPERIMENTAL DATA; PERFORMANCE; AIR POLLUTION ABATEMENT; SULFUR DIOXIDE; NITROGEN OXIDES; ELECTROSTATIC PRECIPITATORS; COMBUSTION PROPERTIES; MATERIALS TESTING
Citation Formats
. Pilot plant assessment of blend properties and their impact on critical power plant components. United States: N. p., 1996.
Web. doi:10.2172/578489.
. Pilot plant assessment of blend properties and their impact on critical power plant components. United States. https://doi.org/10.2172/578489
. 1996.
"Pilot plant assessment of blend properties and their impact on critical power plant components". United States. https://doi.org/10.2172/578489. https://www.osti.gov/servlets/purl/578489.
@article{osti_578489,
title = {Pilot plant assessment of blend properties and their impact on critical power plant components},
author = {},
abstractNote = {A series of tests were performed to determine the effects of blending eastern bituminous coals with western subbituminous coals on utility boiler operation. Relative to the baseline bituminous coal, the testing reported here indicated that there were significant impacts to boiler performance due to the blending of the eastern and western coals. Results indicated that fuel blending can be used to adequately control flue gas emissions of both SO{sub 2} and NO{sub x} at the expense of reduced milling efficiency, increased sootblowing in the high-temperature and low-temperature regions of the boiler and, to a lesser extent, decreased collection efficiency for an electrostatic precipitator. The higher reactivity of the subbituminous coal increased the overall combustion efficiency, which may tend to decrease the impact of milling efficiency losses. The extent of these impacts was directly related to the percentage of subbituminous coal in the blends. At the lowest blend ratios of subbituminous coal, the impacts were greatly reduced.},
doi = {10.2172/578489},
url = {https://www.osti.gov/biblio/578489},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 01 00:00:00 EDT 1996},
month = {Tue Oct 01 00:00:00 EDT 1996}
}