Investigation of coals and coal conversion products by FT-IR methods
Conference
·
OSTI ID:549545
- Clean Coal Technology and Certification Center Ltd., Kemerovo (Russian Federation)
The influence of water content on coal pyrolysis was studied by Fourier transform infrared (FT-IR) spectroscopy. Three coals varying in rank were studied. The coal samples were previously dried at 200 C. Pyrolysis was carried out in a nitrogen flow reactor at temperature 450 C. The FT-IR examination showed that the aliphatic structures and hydroxyl functional groups were removed from chars, while aromatic hydrogen content increased during the pyrolysis. Several structural characteristics based on FT-IR data were calculated for coals and their chars. These structural characteristics showed increasing of aromatic hydrogen content during the drying.
- OSTI ID:
- 549545
- Report Number(s):
- CONF-960954--
- Country of Publication:
- United States
- Language:
- English
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