Abstract
The knowledge of the behavior of coal undergoing oxidation under various conditions is important for the prevention and control of mine fires. The aim of the work was to investigate carbon oxides, ethane, propane, propylene and ethylene emissions from coal oxidation using an air stream of varying oxygen content. The experiment included the heating of coal in the temperature range of 30–210 °C at atmosphere that contains 10%, 15% and 21% oxygen. The results showed that oxygen enrichment in the atmosphere increases the chemical activity of coal and the amount of gases produced due to reaction. At the temperature of 90 °C, the reduction of the oxygen amount by half resulted in the decrease in outflow gases concentration by two times, while at the temperature of 130 °C by three times. The measurements confirmed the existence of a critical temperature (in the range of 80–90 °C) defined as the temperature above which the coal temperature and the amount of released gases increase rapidly. Coal sample heating was also tested at air flow rates of 0.05 L/min and 0.1 L/min, at the temperatures of 90 °C and 120 °C.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
