Hydrothermal treatment coupled with mechanical expression for Loy Yang lignite dewatering and the microscopic description of the process
作者： Xiangchun Liu , Tsuyoshi Hirajima , Moriyasu Nonaka , Keiko Sasaki
DOI: 10.1080/07373937.2015.1127933
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摘要: ABSTRACTThe changes in the gaseous, liquid, and solid products obtained from hydrothermally treated lignite by following mechanical expression were investigated. Furthermore, a microscopic description of was present. Gaseous, characterized gas chromatography, total organic carbon analyzer, inductively coupled plasma atomic emission spectroscopy, high-performance liquid Fourier transform infrared spectrometer, respectively. The results showed that at temperatures above 173°C for hydrothermal treatment, freezable water, some inorganic compounds removed lignite, acidic groups first dissolved decomposed 100°C. For nonfreezable water removed, concentration changed little. Within range 175–250°C, treat...
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