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Evaluation of kinetic parameters of coal ignition

โœ Scribed by Henryk Karcz; Wlodzimierz Kordylewski; Wieslaw Rybak

Publisher
Elsevier Science
Year
1980
Tongue
English
Weight
344 KB
Volume
59
Category
Article
ISSN
0016-2361

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โœฆ Synopsis

A method is presented of evaluating the kinetic parameters for the ignition reaction of coal based on the Semenov's thermal ignition theory adopted to coal particle ignition. The evaluated apparent activation energy, E, for bituminous coal, anthracite and bituminous coal char are in the range 46-103 kJ mol-'.

A verification was made by comparing the measured induction periods for the coal particles with those calculated numerically. The oxidation rate is controlled by diffusion into pores.

๐Ÿ“œ SIMILAR VOLUMES

A general method for determining chemica
A general method for determining chemical kinetic parameters during ignition of coal char particles
โœ Wei Biao Fu; Tao Fang Zeng ๐Ÿ“‚ Article ๐Ÿ“… 1992 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 689 KB

A new viewpoint is presented that the activation energy, E, is independent of coal type and only varies with the temperature of particle, but the frequency factor of coal char, ko. oh, varies with coal type. We have determined that E = 152 kJ/mol (36.3 kcal/mol), which is a constant in oxidation of

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โœ T.F. Wall; V.S. Gururajan ๐Ÿ“‚ Article ๐Ÿ“… 1986 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 357 KB

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