Research Article
Macerals of Shengli Lignite in Inner Mongolia of China and Their Combustion Reactivity
Figure 2
(a) SEM image of xyloid coal (x) (scale = 100 μm), (b) SEM image of detrital coal (d), xyloid coal (x), and fusinitic coal (f) (scale = 500 μm), and (c) SEM image of fusinitic coal (f) (scale = 100 μm).