Zi-yun HONG, Cheng-lin YAN, Hong MIN, Yan-jun XING, Chen LI, Shu LIU. Research on Coal Species Identification Based on Near-Infrared Spectroscopy and Discriminant Analysis[J]. Spectroscopy and Spectral Analysis, 2022, 42(9): 2800
- Spectroscopy and Spectral Analysis
- Vol. 42, Issue 9, 2800 (2022)
Fig. 1. Near-infrared spectra of different coals
Fig. 2. (a) The near-infrared spectroscopy of lignite (YNH, FH), bituminous coal (AY, MY) and anthracite (EWY, CWY); (b) The relationship between the absorbance at 10 001 cm-1 and the fixed carbon content
Fig. 3. (a) The XRD spectra of lignite (YNH, FH), bituminous coal (AY, MY) and anthracite (EWY, CWY); (b) Gaussian fitting curve of γ peak and 002 peak of EWY coal sample in 2θ range of 10°~35°
Fig. 4. (a) The relationship between the f a and the H/C; (b) The relationship between the spectral slope and the f a
Fig. 5. (a) Cumulative contribution rate of PCs; Loading plot of (b) PC1 (98.11%), (c) PC2 (1.708%)
Fig. 6. (a) Discriminant function (F 1, F 2) decentralized point map; (b) Correlation coefficient of each variable in the discriminant function (F 1, F 2)
|
Table 1. Summary of the number of experimental samples
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||
Table 2. Proximate analyse and ultimate analyses of lignite (YNH, FH), bituminous coal (AY, MY) and anthracite (EWY, CWY)
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Table 3. Structure parameters of XRD
|
Table 4. Discrimination accuracy (%)
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20