Pore Structure Characteristics and Evolution Law of Different-Rank Coal Samples

Figure 8

Results of the low-temperature nitrogen adsorption experiment. (a) Pore volume distribution; (b) pore volume proportion; (c) pore specific surface area distribution; (d) pore specific surface area proportion; (e) shows the relationship between total pore volume and metamorphic degree; (f) shows the relationship between total specific surface area and metamorphic degree.

(a)

(b)

(c)

(d)

(e)

(f)