Research Article

Effect of Tetrahydrofuran Extraction on Surface Functional Groups of Coking Coal and Its Wettability

Table 1

Industrial analysis and extraction rate of coal samples (THF).

Coal sampleCoal typeProximate analysis (%)E % (THF)

LXCoking coal0.6813.1329.1761.111.320

daf, dry ash free; , moisture (air-dried base); , ash (dry base); , volatile matter (dry ash free); , dry fixed carbon (dry base).