Methane Adsorption in Anthracite Coal under Different Pressures and Temperatures—A Study Combining Isothermal Adsorption and Molecular Simulation

Table 2

Forms of aromatic carbon with different molecular configurations of coal samples.

Existing forms of aromatic carbon	Numbers
Benzene	5
Naphthalene	5
Anthracene	3
Phenanthrene	0
Pentacene	2
Pyrrole	3