97/02489 Changes in the macromolecular structure of coals with pyrolysis temperature

• Publisher: Elsevier Science
• Year: 1997
• Weight: 190 KB
• Volume: 38
• Category: Article
• ISSN: 0140-6701
• DOI: 10.1016/s0140-6701(97)84382-2

✦ Synopsis

An analysis of fluidized bed particles activity towards the volatile matter of a bituminous coal was carried out. The experiment involved measurement of tar yield and the direct measurement of CO2 concentration in the exhaust gas from the devolatilization of bituminous coal particles in a laboratoryscale fluidized bed reactor. Thermogravimetric analysis (t.g.a.) of the fluidizing particles was also performed, indicating that calcium-containing particles exhibited the largest weight loss. Furthermore, a mass spectrometer was connected to the t.g.a. instrument to identify the gases responsible for the weight loss. The results from these two approaches are presented in this paper.

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Ash content as a criterion for determining classification parameters of coals Fon, M. G. Koks Khim., 1996, (II). 12-14. (In Russian) The author determines linear correlations between the ash content of coal and its liptinite, vitrinite, inertinite, and volatile matter contents and plastic layer thickness.