Development of criteria for extension of applicability of low-emission, high-efficiency coal burners: fourth annual report. Report for October 1980-October 1981
Technical Report
·
OSTI ID:6193362
The report summarizes technical progress during the fourth year of effort on EPA contract 68-02-2667. NOx and SOx emission characteristics of two low-NOx distributed-mixing burners were tested with three coals in a large water-tube simulator furnace (50-70 million Btu/hr firing rate). Increasing burner load, burner zone stoichiometry, or overall excess air increased NOx emissions. Staging was limited by increases in CO emissions and problems with flame stability at burner zone stoichiometries below 0.6. The feasibility of using dry sorbents injected directly into the furnace for SO/sub 2/ emission control was investigated. Sorbent type (Ca (OH)/sub 2/ vs. CaCO/sub 3/) and injection location had a small effect on sulfur capture. Fuel sulfur content also affected sulfur capture. Sulfur captures on the order of 40-50 percent were obtained at Ca/S molar ratios of 2.0. Parametric studies of the sulfur capture process were performed in a specially constructed Boiler Simulator Furnace fired at 1.0 million Btu/hr. Under fuel-lean conditions, thermal history exerted controlling influence on sulfur capture. Firing and heat extraction rates strongly influenced sulfur capture due to their effect on thermal history. Sorbent location, burner zone stoichiometry, overall excess air, and tertiary air velocity had secondary effects on capture.
- Research Organization:
- Energy and Environmental Research Corp., Irvine, CA (USA)
- OSTI ID:
- 6193362
- Report Number(s):
- PB-84-240654
- Country of Publication:
- United States
- Language:
- English
Similar Records
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Sat Jun 01 00:00:00 EDT 1985
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Testing of wall-fired furnaces to reduce emissions of NO/sub x/ and SO/sub x/: Volume 1. Final report, for August 1982-November 1983
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Sat Jun 01 00:00:00 EDT 1985
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Technical Report
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Thu Feb 28 23:00:00 EST 1985
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Related Subjects
01 COAL, LIGNITE, AND PEAT
014000 -- Coal
Lignite
& Peat-- Combustion
42 ENGINEERING
421000* -- Engineering-- Combustion Systems
AIR POLLUTION CONTROL
BURNERS
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CARBONACEOUS MATERIALS
CHALCOGENIDES
COAL
COMBUSTION PRODUCTS
CONTROL
ENERGY SOURCES
FOSSIL FUELS
FUELS
FURNACES
INDUSTRIAL WASTES
MATERIALS
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
SULFUR COMPOUNDS
SULFUR OXIDES
WASTES
014000 -- Coal
Lignite
& Peat-- Combustion
42 ENGINEERING
421000* -- Engineering-- Combustion Systems
AIR POLLUTION CONTROL
BURNERS
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CARBONACEOUS MATERIALS
CHALCOGENIDES
COAL
COMBUSTION PRODUCTS
CONTROL
ENERGY SOURCES
FOSSIL FUELS
FUELS
FURNACES
INDUSTRIAL WASTES
MATERIALS
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
SULFUR COMPOUNDS
SULFUR OXIDES
WASTES