The Characterization of Molecular Structural of Coals from Papua Barat
- Author Ahmad Helman Hamdani
- Co-Author Nurdradjat, Muhamad Iqbal
- DOI 10.17605/O
- Country : Indonesia
- Subject :
Keywords : coal, structural molecule, Steenkool, XRD, West Papua.
Abstract
The molecular structural of Steenkool Bituminous coal was analyzed by proximate, ultimate analysis, and X-ray diffraction spectroscopy. The structural molecule parameters, measured by XRD such as Lc (crystallite height), La (crystallite diameter), d002 (interlayer spacing), N (number of aromatic layers), fa (coal aromaticity), and I26/I20 (coal rank). A polynomial relationship has been detected between coal structural parameter with %Ro; all these parameters were increase with the increasing the %Ro; except d002 was decrease. The bituminous coals consist a turbostratic structure with low amorphous structure.
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