The structural characteristics and gasification performance of cokes of modified coal extracted from the mixture of low-rank coal and biomass

High-temperature rheological behavior and non-isothermal pyrolysis mechanism of macerals separated from different coals

“…Meanwhile, A is a bridge to construct thermodynamic and kinetic calculations, which will not be interpreted extensively here. 2.479×10 16 7.532×10 13 4.119×10 15 5.823×10 16 1.233×10 18 3.119×10 19 3.876×10 20 3.225×10 21 7.563×10 22 8.823×10 25 4.357×10 33 In particular, although there are fewer previous studies on the kinetics of pyrolysis of coal macerals, we believe it is still necessary to consider the differences between the existing and presently obtained pyrolytic activation energies of raw coals. Table 4 shows the activation energies of pyrolysis obtained by the KAS and FWO methods for coals with volatile contents in the range of 17.38-48.73% in the interval of α=0.1-0.6.…”

“…The specific pyrolysis behavior of coal during the coking process is precious in instructing the transformation of related products such as gas [14], tar [15], and coke [16]. The coking reactions [17] [18], molecular transformations [19], and product behavior during the thermal evolution of coal are further elucidated in the context of current thermal characterization techniques in waste [20],…”