Investigation on Characterization and Pyrolysis of Some Coals from Mongolia

DOI

10.2991/ahcps.k.211004.017How to use a DOI?

Keywords

High-rank coal, Low-rank coal, Bituminous coal, Thermogravimetric analysis, Thermal stability indices, Pyrolysis tar, Pyrolysis hard residue

Abstract

This study reports the technical characteristics, the organic elemental composition of coal, and the inorganic elemental composition of coal ashes from four selected coals including Tavan tolgoi, Nariin sukhait, Baganuur and Shivee-Ovoo deposits in Mongolia. The thermal stability analyses of the organic mass in coal samples were also conducted with thermogravimetric analysis and discussed with the detailed mechanisms of the thermal decomposition of the coal organic mass. Furthermore, the coal samples were processed by pyrolysis at different heating temperatures and determined the yields of pyrolysis products such as hard residue, condensed liquid (tar and pyrolysis water), and uncondensed gas products. The coal ashes from the selected coals were also studied in detail and report that the ashes of high-rank coals of Tavan tolgoi and Nariin sukhait deposits have acidic character and ashes of low-rank coals of Baganuur and Shivee-Ovoo deposits have alkaline character. In addition, the coals samples from Tavan tolgoi, Nariin sukhait, Shivee-Ovoo, and Baganuur deposits were processed by pyrolysis at different heating temperatures and determined with the yields of pyrolysis products such as hard residue, condensed liquid (tar and pyrolysis water), and uncondensed gas products. The yields of hard residue from high-rank coals of Tavan tolgoi and Nariin sukhait were higher than that of low-rank coals of Baganuur and Shivee-Ovoo coal. The dewatered tar products of pyrolysis were investigated for chemical composition analysis.

Copyright

© 2021, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Purevsuren Barnasan
AU  - Batkhishig Damdin
AU  - Batbileg Sanjaa
AU  - Battsetseg Munkhtaivan
AU  - Ankhtuya Ariunbold
AU  - Jargalmaa Soninkhuu
AU  - Avid Budeebazar
AU  - Ariunaa Aleksandr
AU  - Peter Kuznetsov
PY  - 2021
DA  - 2021/10/05
TI  - Investigation on Characterization and Pyrolysis of Some Coals from Mongolia
BT  - Proceedings of the 5th International Conference on Chemical Investigation and Utilization of Natural Resource (ICCIUNR-2021)
PB  - Atlantis Press
SP  - 118
EP  - 127
SN  - 2590-3195
UR  - https://doi.org/10.2991/ahcps.k.211004.017
DO  - 10.2991/ahcps.k.211004.017
ID  - Barnasan2021
ER  -