Variable Pore Structure and Gas Permeability of Coal Cores after Microwave Irradiation

Table 2

Basic parameters and processing temperature of coal samples.

Sample ID	d/mm	h/mm	T/°C	Sample ID	d/mm	h/mm	T/°C
HY-01	24.2	63.0	50	HY-09^#	24.3	62.1	50
HY-02	24.4	62.4	100	HY-10	24.1	61.1	50
HY-03	24.2	62.6	150	HY-11	24.2	59.7	100
HY-04	24.3	61.3	200	HY-12	24.1	61.1	150
HY-05	24.4	62.1	50	HY-13	24.2	60.4	200
HY-06	24.3	60.4	100	HY-14	24.2	60.7	—
HY-07	25.0	61.0	150	HY-15	24.2	61.6	—
HY-08	24.3	62.2	200

Notes: d is diameter of coal cores; h is height of coal cores; T is the processing temperature; ^#this sample was broken into three pieces after microwave treatment; these two samples are not treated by microwave irradiation.