ISSN 2594-357X
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A new technique that allows dynamic measurement of thermal properties, expansion and the elemental chemistry of the volatile matter being evolved as coal is pyrolysed is described. The thermal (and other properties) are measured dynamically as a function of temperature of the coal without the need for equilibration at temperature. In particular, the technique allows for continuous elemental characterization of tars as they are evolved during pyrolysis and afterwards as a function of boiling point. The technique is demonstrated by measuring the properties of maceral concentrates from a coal. The variation in heats of reaction, thermal conductivity and expansion as a function of maceral composition is described. Combined with the elemental analysis the results aid in the interpretation of the chemical processes contributing to the physical and thermal behavior of the coal during pyrolysis. Potential applications in coke making studies are discussed.
A new technique that allows dynamic measurement of thermal properties, expansion and the elemental chemistry of the volatile matter being evolved as coal is pyrolysed is described. The thermal (and other properties) are measured dynamically as a function of temperature of the coal without the need for equilibration at temperature. In particular, the technique allows for continuous elemental characterization of tars as they are evolved during pyrolysis and afterwards as a function of boiling point. The technique is demonstrated by measuring the properties of maceral concentrates from a coal. The variation in heats of reaction, thermal conductivity and expansion as a function of maceral composition is described. Combined with the elemental analysis the results aid in the interpretation of the chemical processes contributing to the physical and thermal behavior of the coal during pyrolysis. Potential applications in coke making studies are discussed.
Palavras-chave
Coking; Pyrolysis.
Coking; Pyrolysis.
Como citar
Stanger, Rohan;
Xie, Wei;
Wall, Terry;
Lucas, John;
Mahoney., Merrick.
DYNAMIC MEASUREMENT OF COAL THERMAL
PROPERTIES AND ELEMENTAL COMPOSITION OF
VOLATILE MATTER DURING COAL PYROLYSIS
,
p. 1249-1260.
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-22217
