Abstract
Studying the relationship between the structure and pyrolysis of coal is useful for understanding the coal pyrolysis mechanism. In this study, three typical pretreatment methods (viz. hydrothermal pretreatment, tetrahydrofuran swelling pretreatment, and methane thermal pretreatment) were selected to artificially change the structure and composition of Shendong coal. Subsequently, the physicochemical structure and pyrolysis characteristics of the pretreated coals were systematically investigated. The results indicate that the three pretreatment methods had different influences on the pore modification and evolution of the functional groups in coal, thereby destroying the cross-linking structure in different ways. Correspondingly, these changes eventually altered the distribution and composition of the pyrolysis products. Based on these findings, the different mechanisms underlying the pyrolysis behavior, involving alteration of the structure and composition, were analyzed, and the structure–activity relationship between the coal structure and the pyrolysis characteristics was explored.
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.
