Beneficiation of High Sulfur Tertiary Coal of Assam with Burkholderia sp. GR 8-02. An Eco-Friendly Approach Toward Clean Coal Production

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dc.contributor.authorKumar A.
dc.contributor.authorSingh A.L.
dc.contributor.authorRajak P.K.
dc.contributor.authorKumar A.
dc.contributor.authorSingh P.K.
dc.date.accessioned2025-01-13T07:07:54Z
dc.date.available2025-01-13T07:07:54Z
dc.date.issued2024
dc.description.abstractThe high sulfur content in North-East Indian coal is one of the primary challenges with using it as an energy source. Therefore, the present study uses Burkholderia sp. GR 8-02 to explore coal beneficiation from the Tipong mine (T20 and T60) in Assam (North-East India). Various particle size fractions (?125 to +210 �m, ?210 to +250 �m, ?250 to +297 �m, ?297 to +400 �m and ?400 to +500 �m) were treated and subjected to petrographic and chemical analysis, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), Scanning Electron Microscope-Energy Dispersive Spectroscopy (SEM-EDS), Thermogravimetric analysis (TGA), and Raman spectral analysis. The results revealed a 39.04% and 32.43% reduction in total sulfur for T20 and T60 samples, respectively. The ash content decreased by 19.79% in the T20 coal sample and by 24.52% in the T60 coal samples, with a relative decrease in the mineral matter content of approximately 17.43%. Following beneficiation with Burkholderia sp. GR 8-02, the ?125 to +250 �m coal fraction exhibited maximum ash removal. The T20 sample useful heating value increased from 8116 to 8203 kcal/kg and the T60 sample from 8060 to 8210 kcal/kg. X-ray diffraction and FTIR patterns showed mineral phases like quartz, kaolinite, and pyrite. The FTIR spectra indicated altered C-S, SO2, and C=O bonds. The thermal profile showed a 12.54% mass loss difference between untreated and treated coal samples, suggesting lower thermal stability post-treatment without affecting the useful heating value (UHV). The treated coal�s surface leaching and morphological structure changes were investigated using Scanning Electron Microscope-Energy Dispersive Spectroscopy (SEM-EDS) images. Raman analysis revealed increased carbon crystallinity and molecular structure in treated coal. This study offers an environmentally friendly and efficient approach to clean coal production. � 2024 Informa UK Limited, trading as Taylor & Francis Group.
dc.identifier.doi10.1080/01490451.2024.2412005
dc.identifier.issn1490451
dc.identifier.urihttps://dl.bhu.ac.in/ir/handle/123456789/2983
dc.language.isoen
dc.publisherTaylor and Francis Ltd.
dc.subjectBio-beneficiation
dc.subjectcarbon crystallinity
dc.subjectmineralogical phase
dc.subjectpyrite
dc.subjectsulfur rich
dc.subjectthermal stability
dc.titleBeneficiation of High Sulfur Tertiary Coal of Assam with Burkholderia sp. GR 8-02. An Eco-Friendly Approach Toward Clean Coal Production
dc.typeArticle
journal.titleGeomicrobiology Journal
journalvolume.identifier.volume41

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2024