Burn coal cleanly in a fluidized bed - The key is in the controls
Journal Article
·
· Instrum. Control Syst.; (United States)
OSTI ID:6526102
The fluidized-bed combustion (FBC) process produces few sulfur emissions, and can burn wood, municipal solid waste as well as every kind of coal available in the U.S. The presurized, coal-burning fluidized-bed reactor at NASA's Lewis Research Center is described, together with a discussion of the operating results. The FBC system at Lewis, having a completely instrumented reactor, is used to test turbine blade alloys for future power plant applications. With the same type of coal and limestone used in the first testing phase covering 136 hours, it was found that all NOx values were below the EPA standard of 0.7 lb/MBtu, whereas the maximum observed level of SO2 was above the EPA standard of 1.3 lb/MBtu, but with the average SO2 level, however, only 0.63 lb/MBtu. Unburned hydrocarbon and CO levels were very low, indicating combustion efficiencies of close to 99% in almost all tests. Testing is now underway using high temperature cyclones and gas turbine to eliminate erosion and corrosion effects which were observed after the initial tests on the turbine and blades.
- Research Organization:
- NASA, Lewis Research Center, Cleveland, Ohio
- OSTI ID:
- 6526102
- Journal Information:
- Instrum. Control Syst.; (United States), Journal Name: Instrum. Control Syst.; (United States); ISSN INCSA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
014000* -- Coal
Lignite
& Peat-- Combustion
AIR POLLUTION ABATEMENT
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
COAL
COMBUSTION
COMBUSTION PRODUCTS
ENERGY SOURCES
ENGINES
FLUIDIZED-BED COMBUSTION
FOSSIL FUELS
FUELS
GAS ANALYSIS
GAS TURBINE ENGINES
HEAT ENGINES
HYDROCARBONS
INTERNAL COMBUSTION ENGINES
MATERIALS
NITROGEN COMPOUNDS
NITROGEN OXIDES
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
POLLUTION ABATEMENT
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
THERMOCHEMICAL PROCESSES
YIELDS
014000* -- Coal
Lignite
& Peat-- Combustion
AIR POLLUTION ABATEMENT
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
COAL
COMBUSTION
COMBUSTION PRODUCTS
ENERGY SOURCES
ENGINES
FLUIDIZED-BED COMBUSTION
FOSSIL FUELS
FUELS
GAS ANALYSIS
GAS TURBINE ENGINES
HEAT ENGINES
HYDROCARBONS
INTERNAL COMBUSTION ENGINES
MATERIALS
NITROGEN COMPOUNDS
NITROGEN OXIDES
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
POLLUTION ABATEMENT
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
THERMOCHEMICAL PROCESSES
YIELDS