Obtaining and analisis of the primary pirolysis tar of coals of different genetic restorability types
https://doi.org/10.34680/2076-8052.2023.3(132).383-393
Abstract
Combining the methods of thermal destruction and physicochemical analysis, the primary pyrolysis tar obtained from coals of different genetic restorability types (GRT) in the series Cdaf = 76,2-86,1 %) was analyzed. The pyrolysis carried out at a temperature of Tmax (derivatography, DTG-curve) showed that restored coals of the “b” type differ from coals of slightly reduced “a” type in an increased tar yield and have more intense absorption bands at 2900 cm-1 (Сal–Н bond) and at 810 cm-1 (Сar–Н bond). It has been established that Har/Hal relation in tar increases in the coal rank (Cdaf) and is higher for type “a” coals. Using the Brown-Ladner equation, the main structural parameters of the studied coals were calculated.
About the Authors
V. N. Shevkoplyas
L. M. Litvinenko Institute of Physical-Organic and Coal Chemistry
Russian Federation
Russian Federation
Donetsk
R. G. Semenova
L. M. Litvinenko Institute of Physical-Organic and Coal Chemistry
Russian Federation
Russian Federation
Donetsk
R. A. Makarova
L. M. Litvinenko Institute of Physical-Organic and Coal Chemistry
Russian Federation
Russian Federation
Donetsk
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Review
For citations:
Shevkoplyas V.N., Semenova R.G., Makarova R.A. Obtaining and analisis of the primary pirolysis tar of coals of different genetic restorability types. Title in english. 2023;(3(132)):383-393. (In Russ.) https://doi.org/10.34680/2076-8052.2023.3(132).383-393
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