Journal of the Japan Institute of Energy
Online ISSN : 1882-6121
Print ISSN : 0916-8753
ISSN-L : 0916-8753
High Temperature Coal Char Gasification Characteristics and the Effect of Ash Melting
Shiying LINZibing ZHUMitsuho HIRATOYoshihiko NINOMIYAMasayuki HORIO
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1993 Volume 72 Issue 2 Pages 104-110

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Abstract

Four kinds of coal chars were gasified in CO2/Ar atmosphere at a temperature of 1173K to 1673K. The reaction rate and ash morphology were investigated at various conversions.
At a certain temperature Tx, the reaction rate fell more sharply during gasification than those at other temperatures. This suggests that highly viscous molten ash adhered to the char surface retarded the gasification reaction.

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