Carbon attrition during the fluidized combustion of a coal

Journal Article · Sat Jan 01 04:00:00 EST 1983 · AIChE J.; (United States)

DOI:https://doi.org/10.1002/aic.690290106· OSTI ID:6026770

Arena, U

The generation of carbon fines by attrition during the fluidized combustion of a bituminous coal has been studied by means of a 140 mm i.d. fluidized-bed combustor under variable excess air factor, bed temperature, fluidizing velocity and size of bed sand and coal. Results indicate that rates of attrited fines are roughly proportional to excess of gas velocity above the minimum for fluidization and bed carbon exposed surface. Attrition rate constant is affected by size of sand and, to a lesser extent, and particularly with fines coal, by bed temperature.

• OSTI ID: 6026770
• Journal Information: AIChE J.; (United States), Journal Name: AIChE J.; (United States) Vol. 29:1; ISSN AICEA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
014000* -- Coal
Lignite
& Peat-- Combustion
BITUMINOUS COAL
BLACK COAL
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COAL FINES
COMBUSTION
ENERGY SOURCES
FLUIDIZED-BED COMBUSTION
FOSSIL FUELS
FRICTION
FUELS
MATERIALS
OXIDATION
SIZE
TEMPERATURE DEPENDENCE
THERMOCHEMICAL PROCESSES
VELOCITY
WEAR