Macerals in bituminous coals and the coking process: 2. Coal mass properties and coke mechanical properties |
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Authors: | Miroslav Kos̆ina Petr Heppner |
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Affiliation: | Fuel Research Institute, 250 97 Prague 9-B?chovice, Czechoslovakia |
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Abstract: | Bituminous coals produced in the Ostrava-Karviná coal basin show considerable variation in their maceral composition, vitrinite reflectance and fluidity. There is a close association of the latter with the atomic ratio expressing the different chemico-structural properties of vitrinites of lower coalification. These properties of the coal mass all influence the coke mechanical properties; moreover the parameter is of principal importance to the course of the coking process. Laboratory, pilot-plant and full-scale experiments show that coals rich in inertinite may give cokes of suitable mechanical properties, providing the , ratio and the bulk density are high enough. It should be noted, however, that these coals contain finely dispersed inertinite in the vitrinite mass and this may have a positive effect on the coke mechanical properties. |
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Keywords: | coal maceral coke mechanical properties |
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