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The influence of oxidation of long-flame coal pieces (at 100–250°C for 5–40 h) on the yield and composition of the pyrolytic products, the emission dynamics of volatiles, and the properties and porous structure of the semicoke is studied.
The possibility of express determination of the characteristics V
o, IR, y
IR, ΣLCIR, and A
used in the ranking of coal on the basis of IR spectroscopy is assessed for a specific example: Kuznetsk coals of different maceral composition and metamorphic development. The IR...
Currently, the most promising blast-furnace technology involves pulverized-coal injection, and the most promising blast-furnace technology for coke production involves ramming the coal batch before delivery to the coke ovens, so as to ensure high packing density. In classic bed coking, the...
Attention focuses on the structure and electrical conductivity of carbon materials produced by the carbonization (at 900°C) of coal-tar pitch with the addition of 0.03–0.3% graphite foam and oxidized graphite foam. In these quantities, the additives do not change the X-ray diffraction...
The physicochemical properties of coal and oil shales are compared: specifically, the ash content, moisture content, porosity, and yield of volatiles. The electrical resistivity of the oil shales, lignite, and coal is compared, as a function of the temperature. On account of their large content...
Research on the natural radioactivity of coal is analyzed. The safe use of coal containing radioactive nuclides is addressed. Systematic monitoring of radioactive coal and its combustion products must be organized.
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