Abstract
In order to study the microstructure characteristics of coal surface after different temperature and thermal effects of lignite, the SEM images of lignite after different temperatures were analyzed by means of theoretical analysis and experimental measurement (SEM microscanning electron microscopy) to studied the characteristics of organic matter and inorganic substance, fracture channel and pore structure. The results show that: At 150 °C, the volume of lignite expands and the pore size becomes larger, and the water loss fracture will be formed; 200 °C is the mutation temperature of the pore structure of lignite; After the temperature reaches 250 °C, the coal skeleton gradually becomes empty, the coal body starts to soften, produces colloidal fragments, and the fissure structure is more irregular; When the temperature reaches 350 °C, the ablation phenomenon is obvious.
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.
