Char attrition during the batch fluidized bed combustion of a coal

Journal Article · Wed May 01 04:00:00 EDT 1985 · AIChE J.; (United States)

DOI:https://doi.org/10.1002/aic.690310517· OSTI ID:6506122

Chirone, R; D'Amore, M; Massimilla, L; Muzza, A

Batchwise fluidized bed combustion of a coal has been carried out to investigate the generation of elutriable carbon fines by attrition of the burning char. Differences between the purely mechanical attrition and the combustion-assisted attrition of the char have been outlined. The time required to ''activate'' the char surface as regards attrition explains certain features of carbon elutriation curves. Attrition rate constants determined from these curves are compared with those previously found by continuous fluidized combustion of the same coal.

• Research Organization: Istituto di Chimica Industriale e Implanti Chimici, Universita Istituto di Ricerche sulla Combustione, C.N.R. P.le V. Tecchio, Napoli
• OSTI ID: 6506122
• Journal Information: AIChE J.; (United States), Journal Name: AIChE J.; (United States) Vol. 31:5; ISSN AICEA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
014000* -- Coal
Lignite
& Peat-- Combustion
ABRASION
CARBON
CARBONACEOUS MATERIALS
CHARS
CHEMICAL REACTIONS
COAL
COAL FINES
COMBUSTION
ELEMENTS
ELUTRIATION
ENERGY SOURCES
FLUIDIZED-BED COMBUSTION
FOSSIL FUELS
FUELS
GRAPHS
MATERIALS
NONMETALS
OXIDATION
PYROLYSIS PRODUCTS
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES
TIME DEPENDENCE