[1] [1] Weniger P, Francu J, Hemza P, et al. International Journal of Coal Geology, 2012, 93: 23.

[2] [2] Kang J H, Wan R, Zhou F B, et al. Chemical Engineering Journal, 2020, 388: 123449.

[3] [3] Yin T T, Liu D M, Cai Y D, et al. International Journal of Coal Geology, 2020, 220: 103415.

[4] [4] Wang X L, Liu H H, Zhang D M, et al. Fuel, 2022, 321: 124155.

[8] [8] Chen M, Hosking L J, Sandford R J, et al. International Journal of Coal Geology, 2019, 205: 115.

[9] [9] Li W, Liu Z D, Su E L, et al. Energy & Fuels, 2018, 33(1): 503.

[10] [10] Song Y, Zou Q L, Su E L, et al. Fuel, 2020, 279: 118493.

[11] [11] Wang X L, Zhang D M, Geng J B, et al. Journal of Natural Gas Science and Engineering, 2022, 108: 104808.

[12] [12] Jiang R X, Yu H G. International Journal of Coal Geology, 2019, 202: 1.

[13] [13] Wang K, Du F, Wang G D. Journal of Natural Gas Science and Engineering, 2017, 45: 358.

[14] [14] Li J X, Pan J N, Wang X L, et al. International Journal of Coal Geology, 2023, 265: 104169.

[15] [15] Wang K, Pan J N, Wang E Y, et al. Chemical Engineering Journal, 2020, 401: 126071.

[16] [16] Thitame P V, Shukla S R. Chemical Engineering Communications, 2016, 203(6): 791.

[17] [17] Tian B, Qiao Y Y, Tian Y Y, et al. Fuel Processing Technology, 2016, 154: 210.

[18] [18] Li X J, Hayashi J, Li C Z, et al. Fuel, 2006, 85(12-13): 1700.

[19] [19] Wang Y, Alsmeyer D C, McCreery R L. Chemistry of Materials, 1990, 2(5): 557.

[20] [20] Ulyanova E V, Molchanov A N, Prokhorov I Y, et al. International Journal of Coal Geology, 2014, 121: 37.

[21] [21] Potgieter-Vermaak S, Maledi N, Wagner N, et al. Journal of Raman Spectroscopy, 2011, 42(2): 123.

[22] [22] Xu J, Tang H, Su S, et al. Applied Energy, 2018, 212: 46.

[23] [23] Seong H J, Boehman A L. Energy & Fuels, 2013, 27(3): 1613.

[24] [24] Jiang J Y, Yang W H, Cheng Y P, et al. Fuel, 2019, 239: 559.

[25] [25] Henry D G, Jarvis I, Gillmore G, et al. International Journal of Coal Geology, 2019, 203: 87.

[26] [26] Morga R, Jelonek I, Kruszewska K. International Journal of Coal Geology, 2014, (134-135): 17.

[28] [28] Chen X Z, Li M F, Zeng F G. Fuel Processing Technology, 2022, 228: 107162.

[29] [29] Song Y, Jiang B, Qu M J. Fuel, 2019, 236: 1432.