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- W1524336520 abstract "A classification has been established for solvent-extracted filter-cake solid residues of high volatile bituminous coals from several bench-scale and pilot plant solvent-refined coal operations. An attempt to relate the organic residue constituents with the precursor coal macerals and distinguish between potentially inert and reactive materials has provided insight into the physical and chemical degradation of coal during liquefaction. The proposed classification is based on morphology, relative reflectance and anisotropy, and size, as determined by analysis of polished surfaces in reflected white light. The experimental approach involved the batch hydrogenation of selected coals through a range of temperature (300 to 450/sup 0/C, at 25/sup 0/C increments). The benzene-insoluble residues from each series were studied optically and provided a record of degradation for each coal maceral. The resulting phases were compared to residues derived from pilot plant and bench-scale systems. The microscopic examination of residues could provide a routine method for determining the instantaneous efficiency of continuous-flow reactors, should aid in selection of feedstocks for possible future conversion, and to some extent will provide a critical analysis of the reaction conditions." @default.
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- W1524336520 date "1976-01-01" @default.
- W1524336520 modified "2023-09-23" @default.
- W1524336520 title "Petrographic classification of solid residues derived from the hydrogenation of bituminous coals. [11 refs]" @default.
- W1524336520 hasPublicationYear "1976" @default.
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