|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Characterization of Minerals, Metals, and Materials
||Interpretation of Coal Quality Using Laboratory Based Features over VNIR Bands
||Nafisa Begum, Debashish Chakravarty, Bhabani Sankar Das
|On-Site Speaker (Planned)
In this study, Permian coal of Gondwana Basin, India is selected to study the spectral reflectance properties of coals and to determine the coal quality. ASD spectroradiometer is used to collect the spectral signature of different coal lithotypes and rank in spectral range of 400 – 2500 nm. The data is processed using ENVI software. It shows that reflectivity of coal within 500 - 800 nm is < 10%, 900 - 950 nm is ~ 12% and within 950 - 1100 nm is decreasing and strong absorption between 2200 - 2500 nm resulting from organic matter. Spectral curves of different lithotype and vitrinite reflectance are plotted and compared. Reflectance of different lithotypes increases from durain – clarain – vitrain and lower rank coal has lower spectral reflectance than that of higher one. But this variability is only significant in case of vitrain band while in durain bands this behavior insignificant.
||Planned: None Selected