Characteristics of the method of creating innovative raw materials for the production of carbon fibers on the basis of coal from the Kuznetsk Basin

Studies on thermal dissolution of G, GZh and Zh coals in anthracene oil were carried out in the laboratory of PAO Koks together with the Department of Solid Fuel Chemical Technology of the Institute of chemical and oil and gas technologies. The optimal parameters of the process were determined, and the quality of the obtained products was studied. The obtained indicators are compared with the quality indicators of raw materials required for the production of carbon fibers. It is shown that it is possible to obtain raw materials directly from coal, bypassing the high-temperature coking process, for the production of a binding material with the required properties.

Thermal Dissolution of Bituminous Coal in Heavy Coal Semicoking Tar and in Binary Blends with the Anthracene Oil

The effect of hydrorefining of heavy coal semicoking tar on its composition and efficiency for bituminous coal dissolution was studied. It was found that the concentration of the oxygen-bearing compounds decreased as a result of catalytic hydrotreating with hydrogen or with hydrogen donors. This resulted in improved dissolving power. However, best result in coal dissolution was achieved when heavy semicoking tar was blended with the anthracene oil. The products obtained represented at ambient temperature solid pitch-like matter with the softening points of 124 to 138 °С (“ring and ball” method). It was composed of mainly bi- and three-cyclic aromatics, the content of quinoline-insolubles being less than 6 %, and the ash content less than 0.5 %