Fluidized bed combustion of a high-sulphur eastern Canadian coal

Conference · Wed Jan 01 04:00:00 EST 1986

OSTI ID:6571961

Desai, D L; Anthony, E J; Friedrich, F D; Razbin, V V

A high-sulphur bituminous coal from Nova Scotia has been tested in a pilot scale FBC (Fluidized Bed Combustor) and an industrial FBC boiler. A comprehensive pilot plant program involved 28 tests at a nominal bed temperature of 850/sup 0/C (1560/sup 0/F) and fluidizing velocities of 1.2, 2.1 and 3 m/s (4,7 and 10 ft/sec) with and without fly ash recycle. Two different sizes of limestone were used for sulphur sorption. The industrial boiler trials involved two tests at 65% and 100% MCR (Maximum Continuous Rating). Pilot scaling results indicate that high combustion efficiencies are achievable. Sulphur capture of over 80% (meeting the SO/sub 2/ emission standard of 705 ng/J or 1.64 lbs/MBTU input) is possible with a Ca/S molar ratio <3 with fly ash recycle.

• OSTI ID: 6571961
• Report Number(s): CONF-861005-
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
014000* -- Coal
Lignite
&amp; Peat-- Combustion
20 FOSSIL-FUELED POWER PLANTS
200202 -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas &amp; Particulate Emissions
500200 -- Environment
Atmospheric-- Chemicals Monitoring &amp; Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AEROSOL WASTES
AIR POLLUTION CONTROL
ASHES
BITUMINOUS COAL
BLACK COAL
CANADA
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CARBONACEOUS MATERIALS
CARBONATE ROCKS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COAL
COMBUSTION
COMBUSTION CONTROL
COMBUSTION KINETICS
COMBUSTORS
CONTROL
DESULFURIZATION
EFFICIENCY
ELEMENTS
ENERGY SOURCES
FLUE GAS
FLUIDIZED-BED COMBUSTION
FLUIDIZED-BED COMBUSTORS
FLY ASH
FOSSIL FUELS
FUELS
FUNCTIONAL MODELS
GASEOUS WASTES
KINETICS
LIMESTONE
MATERIALS
NITROGEN COMPOUNDS
NITROGEN OXIDES
NONMETALS
NORTH AMERICA
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PARTICLE SIZE
PERFORMANCE
PILOT PLANTS
POLLUTION CONTROL
REACTION KINETICS
RECYCLING
REMOVAL
RESIDUES
RETENTION
ROCKS
SEDIMENTARY ROCKS
SIZE
SULFUR
SULFUR COMPOUNDS
SULFUR CONTENT
SULFUR DIOXIDE
SULFUR OXIDES
THERMOCHEMICAL PROCESSES
VERY HIGH TEMPERATURE
WASTES