Macerals in bituminous coals and the coking process: 2. Coal mass properties and coke mechanical properties

✍ Scribed by Miroslav Kos̆ina; Petr Heppner

• Publisher: Elsevier Science
• Year: 1985
• Tongue: English
• Weight: 710 KB
• Volume: 64
• Category: Article
• ISSN: 0016-2361
• DOI: 10.1016/0016-2361(85)90277-7

✦ Synopsis

Bituminous coals produced in the Ostrava-Karvina coal basin show considerable variation in their maceral composition, vitrinite reflectance and fluidity. There is a close association of the latter with the H/O 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 H/O,, 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 H/O,, ratio and the bulkdensityare 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.