ISSN 2594-357X
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We present preliminary work that examines the effect of components of the coke microstructure, such as voids, inerts and microfissures, upon the strength and reactivity of the coke. Using imaging of coke samples, we obtain sample information about coke microstructure, including identification of most features of the void space as well as location, size etc of inerts and microfissures. We use a 3D finite element model to calculate mechanical properties and locations of stress concentration within the structure, giving an identification of the coke strength. We also calculate gas permeability, which is an important determinant of the coke reactivity. We use a modelling approach to understand the effects of size, shape and distribution of the individual components in the coke on the strength and permeability of the coke, in order to better understand their effect on coke quality. Ultimately, we wish to relate these back to the properties of the coal charge.
We present preliminary work that examines the effect of components of the coke microstructure, such as voids, inerts and microfissures, upon the strength and reactivity of the coke. Using imaging of coke samples, we obtain sample information about coke microstructure, including identification of most features of the void space as well as location, size etc of inerts and microfissures. We use a 3D finite element model to calculate mechanical properties and locations of stress concentration within the structure, giving an identification of the coke strength. We also calculate gas permeability, which is an important determinant of the coke reactivity. We use a modelling approach to understand the effects of size, shape and distribution of the individual components in the coke on the strength and permeability of the coke, in order to better understand their effect on coke quality. Ultimately, we wish to relate these back to the properties of the coal charge.
Palavras-chave
Coke microstructure; Strength; Reactivity; Permeability; Finite elements.
Coke microstructure; Strength; Reactivity; Permeability; Finite elements.
Como citar
Jenkins, David R.;
Mahoney, Merrick R.;
Miller., Anthony D..
UNDERSTANDING THE EFFECT OF COKE
MICROSTRUCTURE UPON COKE QUALITY USING
IMAGING AND MODELLING TOOLS
,
p. 1079-1089.
In: 42º Seminário de Redução de Minério de Ferro e Matérias-primas / 13º Seminário Brasileiro de Minério de Ferro / 6th International Congress on the Science and Technology of Ironmaking,
Rio de Jabeiro,
2012.
ISSN: 2594-357X
, DOI 10.5151/2594-357X-22198
