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Hydrogen transfer property is of great importance in the carbonization of heavy oils. Thermal treatment under hydrogen was performed on a raw slurry oil (SO) from FCC process. The theoretical hydrogen-donating property of SO fractions before and after treatment was predicted by comprehensive two-dimensional gas chromatography coupled with time-of-flight mass spectrometry. The hydrogen-transfer experiments...
A series of thermal cokes obtained by coking of vacuum residues and fractions have been studied by polarized light microscopy observation, scanning electron microscope (SEM), and temperature-programmed oxidation (TPO) technique. The anisotropic degrees of coke samples are found to be considerably different for discriminating characterization, which indicates that the coke morphology is closely dependent...
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