Evaluation of the Porosity of a Coke Particle According to Its Combustion Data

O. S. Chernenko; V. V. Kalinchak; A. P. Baturina

doi:10.15407/ujpe65.9.823

Evaluation of the Porosity of a Coke Particle According to Its Combustion Data

Authors

O. S. Chernenko I.I. Mechnikov National University of Odesa
V. V. Kalinchak I.I. Mechnikov National University of Odesa
A. P. Baturina I.I. Mechnikov National University of Odesa

DOI:

https://doi.org/10.15407/ujpe65.9.823

Keywords:

particle, coke, combustion, porosity, diameter, density

Abstract

The dependence of the density of a porous coke particle on its diameter at the particle combustion in the external diffusion mode is analyzed. It is shown that, for the large values of the internal diffusion-kinetic ratio, Se_v > 5, the required dependence can be obtained in the analytic form. The analytic formulas are found to be different for the bulk and Knudsen diffusion modes inside the pores. A graphical comparison of the obtained dependences with the empirical power-law dependence is carried out to evaluate the power exponents in the analytic dependences. The corresponding results make it possible to evaluate the effective specific surface area of the pores.

References

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Published

2020-08-26

How to Cite

Chernenko, O. S., Kalinchak, V. V., & Baturina, A. P. (2020). Evaluation of the Porosity of a Coke Particle According to Its Combustion Data. Ukrainian Journal of Physics, 65(9), 823. https://doi.org/10.15407/ujpe65.9.823

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Issue

Vol. 65 No. 9 (2020)

Section

Surface physics

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