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Carbon attrition during the fluidized combustion of a coal
Author(s) -
Arena U.,
D'Amore M.,
Massimilla L.
Publication year - 1983
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690290106
Subject(s) - fluidization , fluidized bed , coal , attrition , bituminous coal , combustion , combustor , fluidized bed combustion , carbon fibers , waste management , chemical looping combustion , mineralogy , environmental science , metallurgy , materials science , chemistry , composite material , engineering , medicine , dentistry , organic chemistry , composite number
The generation of carbon fines by attrition during the fluidized combustion of a bituminous coal has been studied by means of a 140mm ID 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 less extent, and particularly with finer coal, by bed temperature.