Structural Characteristics and Physical Properties of Tectonically Deformed Coals

Table 3

The characteristics of pore structural parameter of TDCs.

Type of tectonically deformed coals	Coal sample’s number	Pore volume					Pore specific surface					N2 adsorption volume   (cm^3/g)
		𝑉𝑡 (cm^3/g)	𝑉4/𝑉𝑡	𝑉5/𝑉𝑡	𝑉6/𝑉𝑡	𝑉7/𝑉𝑡	𝑆𝑡 (m^2/g)	𝑆4/𝑆𝑡	𝑆5/𝑆𝑡	𝑆6/𝑆𝑡	𝑆7/𝑆𝑡
Cataclastic structure coal	QN03	0.00046	95.652	4.348			0.484	83.33	16.667			0.3105
Mortar structure coal	TY02	0.00079	78.481	11.392	7.595	2.532	0.224	30.357	21.429	27.678	20.536	0.9606
Mortar structure coal	XY02	0.00055	92.727	5.455	0	1.818	0.072	59.722	16.667	8.333	15.278	0.3566
Granulitic structure coal	XY01	0.00229	81.223	13.100	5.240	0.437	0.491	43.789	28.31	26.28	1.221	1.9401
Schistose structure coal	ZJ01	0.00066	86.364	7.576	6.060		0.123	46.341	15.447	38.212		3.762
Thin-layer structure coal	XJ03	0.00491	70.061	18.534	11.202	0.203	1.377	25.853	28.467	44.080	1.600	3.7620
Scaly structure coal	LL01	0.00215	82.791	10.698	6.511		0.464	41.164	22.845	35.991		1.9104
Wrinkle structure coal	BJ05	0.00407	76.167	17.700	6.143		1.008	37.401	33.929	28.670		3.1771
Mylonitic structure coal	QN09	0.00930	67.229	19.277	13.253	0.251	2.636	24.772	28.376	45.524	1.328	6.1405
Mylonitic structure coal	ZXZ04	0.01871	74.025	19.401	6.146	0.428	4.575	33.880	34.972	27.607	3.541	12.9174
Ductile structure coal	XY06	0.00078	85.900	5.128	7.692	0.282	0.158	35.443	11.392	48.101	5.064	0.5320
Schistose structure coal	LH05	0.00093	94.624	4.301	1.075		0.101	72.277	12.871	14.852		0.6216
Schistose structure coal	TT10	0.00090	96.667	3.333			0.081	85.185	13.580	1.2350		0.5834
Cataclastic structure coal	HZ01	0.00049	81.663	8.163	10.204		0.105	43.810	10.476	45.714		0.4836
Mylonitic structure coal	HZ07	0.00882	28.458	14.286	54.875	2.381	6.365	5.027	10.008	79.214	5.751	6.9903

𝑉₄: 15∼100 nm; 𝑉₅: 5∼15 nm; 𝑉₆: 2.5∼5 nm; 𝑉₇: <2.5 nm; 𝑉_𝑡: Total pore volume; 𝑆₄: 15∼100 nm; 𝑆₅: 5∼15 nm; 𝑆₆: 2.5∼5 nm; 𝑆₇: <2.5 nm; 𝑆_𝑡: Total specific surface area.