Thermoplastic Properties of Coal and Coal Extract

Chia Ching Chu, Chih Min Chang, Der Her Wang, Thou Jen Whang

研究成果: Article同行評審

2 引文 斯高帕斯(Scopus)

摘要

The aim of this study is to find a simple, effective, and non-destructive way to estimate the fluidity of coal. Three kinds of metallurgical coals were blended in a specific ratio for fluidity measurement by a Gieseler plastometer and coke strength by the Roga test. One of the metallurgical coals was extracted with four kinds of solvents. The solvent-extracted extracts further underwent heat treatment at different temperatures and were then added to the blended coal to examine the change of fluidity and coke strength. Both the heat-treated and untreated coal extracts were further investigated by elemental analysis, thermogravimetric analysis, solid-state 13C nuclear magnetic resonance, and X-ray diffractometry, and it was found that the heat treatment will increase the degree of graphitization. The aromatic carbon content was found to correlate significantly with the fluidity of coal, and the relationship among the ratio of aromatic carbon/aliphatic carbon, aromaticity, and fluidity was studied in this work. Finally, X-ray diffractometry is suggested to be a non-destructive method to estimate the fluidity of coal.

原文English
頁(從 - 到)11947-11953
頁數7
期刊Energy and Fuels
31
發行號11
DOIs
出版狀態Published - 2017 11月 16

All Science Journal Classification (ASJC) codes

  • 一般化學工程
  • 燃料技術
  • 能源工程與電力技術

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