Effect of the rate of pulverized coal preheating on char reactivity

Тип публикации: статья из журнала

Год издания: 2017

Идентификатор DOI: 10.3103/S0361521917010037

Ключевые слова: Bituminous coal, Carbon dioxide, Preheating, Pyrolysis, Reaction rates, Thermogravimetric analysis, Char particles, Char reactivity, Mean diameter, Muffle furnaces, Pulverized coals, Rapid pyrolysis, Slow pyrolysis, Specific reaction rates, Coal

Аннотация: The effect of the preheating rate of the char particles from Kuznetsk bituminous coal on their specific reaction rate was determined. The experiments were carried out with char samples with mean diameters of 0.15 and 0.35 mm heated to temperatures of 900-1000A degrees C. It was found that the specific surface area of the initial coal, measured by CO2 adsorption at 273 K, for rapid and slow heat treatments increased more that two times. According to the results of thermogravimetric analysis, it was established that rapid pyrolysis in a muffle furnace led to the production of char whose maximum specific reaction rate was higher than that of the samples after slow pyrolysis.

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Издание

Журнал: SOLID FUEL CHEMISTRY

Выпуск журнала: Vol. 51, Is. 1

Номера страниц: 17-23

ISSN журнала: 03615219

Место издания: NEW YORK

Издатель: ALLERTON PRESS INC

Авторы

  • Dekterev A.A. (Siberian Fed Univ, Krasnoyarsk, Russia; Russian Acad Sci, Siberian Branch, Kutateladze Inst Thermophys, Novosibirsk, Russia)
  • Osipov P.V. (Ural Fed Univ, Ekaterinburg, Russia)
  • Chernetskiy M.Yu. (Siberian Fed Univ, Krasnoyarsk, Russia; Russian Acad Sci, Siberian Branch, Kutateladze Inst Thermophys, Novosibirsk, Russia)
  • Ryzhkov A.F. (Ural Fed Univ, Ekaterinburg, Russia)

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