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TECHNICAL PAPERS

Char Attrition from Australian Black Coals in Pressurized Fluidized Bed Combustion

[+] Author and Article Information
Alan L. T. Wang, John F. Stubington

Cooperative Research Center for Coal in Sustainable Development School of Chemical Engineering and Industrial Chemistry University of New South Wales, UNSW, Sydney 2052, Australiae-mail: a.wang@unsw.edu.au.

J. Energy Resour. Technol 125(2), 113-118 (Jun 04, 2003) (6 pages) doi:10.1115/1.1524330 History: Received April 01, 2001; Revised August 01, 2002; Online June 04, 2003
Copyright © 2003 by ASME
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References

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Figures

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Simplified schematic diagram of UNSW’s bench-scale batch-fed PFBC facility
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Attrition rate of Fixed Carbon fed during burnout from PFBC (1.6 MPa, 850°C, 7%O2, U=0.9 m/s, coal particle size: 4–4.75 mm)
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In-bed coal char particle number and size variations during burnout in PFBC (1.6 MPa, 850°C, U=0.9 m/s, 7%O2, coal particle size: 4–4.75 mm)
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Char particle size reduction and distribution during burnout in PFBC (1.6 MPa, 850°C, U=0.9 m/s, 7%O2, coal particle size:4–4.75 mm)
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Specific attrition rate during coal burnout in PFBC (1.6 MPa, 850°C, 7%O2, U=0.9 m/s, coal particle size: 4–4.75 mm)
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Influences of char particle size on specific char attrition rate during burnout in PFBC (1.6 MPa, 850°C, 7%O2, U=0.9 m/s, coal particle size: 4–4.75 mm)
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Influences of char surface porosity on char attrition rate (1.6 MPa, 850°C, U=0.9 m/s)
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Correlation of Fixed Carbon elutriation during burnout with telocollinite/inertinite ratio of coal (1.6 MPa, 850°C, 7%O2, U=0.9 m/s, Coal particle size: 4–4.75 mm)
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Influence of telocollinite/inertinite ratio on the formation of porosity in PFBC chars during devolatilization (1.6 MPa, 850°C, 7%O2, U=0.9 m/s, Coal size: 4–4.75 mm)
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Influence of telocollinite/inertinite ratio on the formation of pore size in PFBC chars during devolatilization (1.6 MPa, 850°C, 7%O2, U=0.9 m/s, Coal size: 4–4.75 mm)

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