Abstract
The thermal transportation of pulverized semi-coke is a critical link of pulverized coal pyrolysis and downstream application technology. In this work, the semi-coke powder stably produced in an industrial test device was used as the raw material, and the properties and influencing factors during thermal transportation process were researched. In comparison with feed coal, the total moisture of semi-coke decreased to 1.5%, the calorific value increased to 29.80MJ/kg, and the combustion performance parameters were similar, which made it a high quality fuel. The characterization results indicated that the surface of semi-coke was attached by a large amount of volatile matter, and it had a similar particle size and a more concentrated distribution, as well as higher degree of aromatization. The thermo gravimetric analysis and tube furnace test presented that the oxidative combustion intensity of semi-coke increased with the growth of specific contact area, temperature and oxygen concentration. Pulverized semi-coke started oxidative combustion above 350 °C at air atmosphere, and at a constant temperature of 350 °C, significant oxidative combustion occurred when the oxygen concentration exceeded 10%.
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.
