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TECHNICAL PAPERS

Gasification Kinetics of Coal Chars Carbonized Under Rapid and Slow Heating Conditions at Elevated Temperatures

[+] Author and Article Information
Chunhua Luo, Tomokazu Watanabe, Makoto Nakamura, Shigeyuki Uemiya, Toshinori Kojima

Department of Industrial Chemistry, Seikei University, Tokyo 180-8633, Japan

J. Energy Resour. Technol 123(1), 21-26 (Oct 30, 2000) (6 pages) doi:10.1115/1.1345701 History: Received March 15, 2000; Revised October 30, 2000
Copyright © 2001 by ASME
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References

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Kojima,  T., Assavadakorn,  P., and Furusawa,  T., 1993, “Measurement and Evaluation of gasification Kinetics of Sawdust Char with Steam in an Experimental Fluidized Bed,” Fuel Process. Technol., 36, pp. 201–207.
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Figures

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Schematic diagram of experimental setup
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Time variation of carbon conversion for SS005 coal char carbonized under rapid heating conditions
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Time variation of carbon conversion for SS005 coal char carbonized under slow heating conditions
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Time variation of carbon conversion for SS021 coal char carbonized under rapid heating conditions
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Time variation of carbon conversion for SS021 coal char carbonized under slow heating conditions
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Reaction rate versus residual fraction of carbon for SS005 coal char carbonized under rapid heating conditions
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Reaction rate versus residual fraction of carbon for SS005 coal char carbonized under slow heating conditions
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Reaction rate versus residual fraction of carbon for SS021 coal char carbonized under rapid heating conditions
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Reaction rate versus residual fraction of carbon for SS021 coal char carbonized under slow heating conditions
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Half-life as a function of temperature
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Effects of heating rate during devolatization on char reactivity (SS005 coal)
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Effects of heating rate during devolatization on char reactivity (SS021 coal)
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Effect of cooling of char on the reactivity (SS005 coal)

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