Abstract
In order to study the influence of the change of oxygen concentration on combustion characteristics of coal, in the simultaneous thermal analysis was carried out on different oxygen concentration of Xiaolongtan young lignite (21%, 30%, 50%, and 80%) combustion characteristics experiments under the mixed O2/CO2 atmosphere. Determined the combustion characteristics of pulverized coal with different oxygen concentration. Experimental results show that, with the increase of oxygen concentration, the DTG curve of pulverized coal shifted towards lower temperature range, the ignition temperature and burnout temperature of coal sample decreased, combustion time shorten, burning speed accelerated, flammability index increased. Meanwhile, at different heating rates, with the increase of heating rate, the temperature of the same burnout rate increase, with the increase of temperature, the coal sample’s burnout rate increased. With the decrease of pulverized coal’s particle size, lignite ignition temperature and burnout temperature are both decreased, at the same time burnout time also shorten. When the oxygen concentration is larger than 30%, pulverized coal’s combustion characteristic parameter change slowly. Thus, industry, considers the cost of oxygen-enriched, it can control oxygen concentration at 30%.
Published Version
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.
