Location and distribution of inorganic material in a low ash yield, subbituminous coal
Author(s)
E. Mares, Tennille
Radlinski, Andrzej
A. Moore, Tim
Cookson, David
Thiyagarajan, P.
Ilavsky, Jan
Klepp, Jürgen
Griffith University Author(s)
Year published
2012
Metadata
Show full item recordAbstract
Previous studies of mineral matter in low ash yield, low rank coals have suggested that much of the inorganic material is present as organically bound elements rather than as discrete minerals. This study investigates the location and occurrence of this inorganic material to the angstrom level using non-invasive small angle scattering techniques.Microstructural analysis conducted on matrix and vitrain samples, collected from the subbituminous coals of the Huntly coalfield, found that the inorganic material is located in the 12.5. Ů <. r<. 125. Šsize range. This was consistent for all samples, irrespective of seam or location. ...
View more >Previous studies of mineral matter in low ash yield, low rank coals have suggested that much of the inorganic material is present as organically bound elements rather than as discrete minerals. This study investigates the location and occurrence of this inorganic material to the angstrom level using non-invasive small angle scattering techniques.Microstructural analysis conducted on matrix and vitrain samples, collected from the subbituminous coals of the Huntly coalfield, found that the inorganic material is located in the 12.5. Ů <. r<. 125. Šsize range. This was consistent for all samples, irrespective of seam or location. As there was greater influence on X-ray scattering curves seen in the vitrain samples than the matrix samples, it is suggested that the inorganic material is located within the structured vitrinite tissues, likely originating from the original plant material rather than being precipitated post deposition. The fitting of microstructural models to the scattering curves suggests that the inorganic material exists as inorganic shells or coatings
View less >
View more >Previous studies of mineral matter in low ash yield, low rank coals have suggested that much of the inorganic material is present as organically bound elements rather than as discrete minerals. This study investigates the location and occurrence of this inorganic material to the angstrom level using non-invasive small angle scattering techniques.Microstructural analysis conducted on matrix and vitrain samples, collected from the subbituminous coals of the Huntly coalfield, found that the inorganic material is located in the 12.5. Ů <. r<. 125. Šsize range. This was consistent for all samples, irrespective of seam or location. As there was greater influence on X-ray scattering curves seen in the vitrain samples than the matrix samples, it is suggested that the inorganic material is located within the structured vitrinite tissues, likely originating from the original plant material rather than being precipitated post deposition. The fitting of microstructural models to the scattering curves suggests that the inorganic material exists as inorganic shells or coatings
View less >
Journal Title
International Journal of Coal Geology
Volume
94
Subject
Physical Sciences not elsewhere classified
Geology
Physical Geography and Environmental Geoscience
Resources Engineering and Extractive Metallurgy