Effect of -O- on Water Molecule Adsorption and Adsorption Mechanism of Lignite and Coke

Figure 10

Scanning electron microscopy (SEM) images of lignite coke pyrolyzed at different temperatures: (a) 200°C, (b) 300°C, (c) 500°C, (d) 700°C, and (e) 950°C.

(a)

(b)

(c)

(d)

(e)