Kinetics study of the finely dispersed limestone thermal decomposition reaction

Svitlana Filias1 filyas180893 [at] mail.ru
Roman Havryliv2 havrilivroman [at] gmail.com
Volodymyr Maystruk3 vmaistruk [at] gmail.com
  1. Department of chemical engineering, Lviv Polytechnic National University, Ukraine, Lviv, St. Yura square, 9
  2. Department of chemical engineering, Lviv Polytechnic National University, Ukraine, Lviv, St. Yura square, 9
  3. Department of design and operatin of machines, National University, Ukraine, Lviv, Profesorska str., 1
Abstract 

Termogravimetric studies on four various fractions diameters particles of calcium carbonate used in the industrial cyclone-calciner furnace for manufacturing of lime were carried out based on linear increase of the temperature. The values of activation energy E, preexponential factor A in Arrhenius equation, as well as the mechanism of the particles thermal decomposition reaction were defined. The work results provide important data to further study the efficiency of the limestone thermal decomposition chemical reactions and optimizing furnace design and operation modes.

References 

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[2] J. Šesták and G. Berggren, “Study of the kinetics of the mechanism of solid-state reactions at increasing temperatures,”Termochimica Acta, vol. 3, no. 1, pp. 1–12, 1971.

[3] C. Rodriguez-Navarro, E. Ruiz-Agudo, A. Luque, A. B. Rodriguez-Navarro, and M. Ortega-Huertas, “Thermal decomposition of calcite: mechanisms of formation and textural evolution of CaO nanocrystals,” American Mineralogist, vol. 94, no. 4, pp. 578–593, 2009.