Pore Structure of Oil Shale Heated by Using Conduction and Microwave Radiation: A Case Study of Oil Shale from the Fushun in China

Table 3

Data on holes before and after microwave heating.

Sample type	Hole counting point	Average porosity (%)	Average hole perimeter (μm)
Initial state oil shale sample	802	4.954	1.874
After microwave pyrolysis at 300°C	965	8.109	2.327
After microwave pyrolysis at 400°C	922	15.858	3.411
After microwave pyrolysis at 500°C	1,010	25.342	5.238