Thermochemical utilization of low rank coal and flotation concentrate

• DOI: 10.1016/j.jsm.2019.02.009
• Publication Date: 2019-03-03T06:20:02Z
• Authors: Rafał Gąsior; Adam Smoliński
• Keywords: Mining engineering. Metallurgy; TN1-997; 0211 other engineering and technologies; 0202 electrical engineering, electronic engineering, information engineering; 02 engineering and technology; 7. Clean energy; 12. Responsible consumption

Flotation concentrates are waste material from coal mine operation. The process of steam gasification seems to be an attractive option for their economic utilization and an alternative to their potential combustion in boilers. The gasification process is characterized by both higher efficiency and lower emission of pollution than conventional combustion systems. In this paper the results of the steam gasification of low rank coal and flotation concentrate into hydrogen-rich gas at the temperature of 800 °C are presented. The reactivity for 50% carbon conversion as well as the maximum reactivity in this process were calculated for the samples studied. Keywords: Hydrogen, Gasification, Reactivity, Low rank coal, Flotation concentrate