alexa Composition and structure of Luxing Coal with different particle sizes
Chemical Engineering

Chemical Engineering

Journal of Chemical Engineering & Process Technology

Author(s): Yueqin Qiu, Qin Zhang, Yingzhong Tian, Tiancun Xiao

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More than 10 tons of coal samples from Luxing Coal Mining Company, Guizhou Province have been collected from various points and sieved into different sizes from the as mined products according to its market demand and utilization. The series samples with different sizes have been characterized using X-Ray diffraction (XRD), Laser Raman (LR), Infrared spectroscope(IR), 13C solid state magic angle spinning nuclear magnetic resonance (13C MAS NMR), and scanning electron microscope. It is seen that the bigger lump coal has higher pyrite content and quartz, the big lump coal normally has higher inorganic sulphur content, while the coal powder has higher organic sulphur content. In addition, the coal powders with smaller size have higher dolomite content. The kaolinite and quartz are present in the coal with various particles size. The carbon in the Luxing Coal is present in good crystalline structure, in which 95% of the coal is graphitic structural in the coal with smaller size.

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This article was published in Petroleum & Coal and referenced in Journal of Chemical Engineering & Process Technology

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