Time-Dependence of Mechanical Property Alterations on Anthracite Coals Treated by Supercritical Carbon Dioxide

Table 1

Proximate analysis of the coal.

Sample	(%)	(%)	(%)	(%)
Coal	3.16	22.15	1.55	11.01

means the maximum vitrinite reflectance, means the ash content (dried basis), means the moisture content (air-dried basis), and means the volatile matter content (air-dried basis).