Particle Size Effect on FeS Spontaneous Combustion Characters in Petroleum

Man Yang; Xian Feng Chen; Yu Jiao Shang; Ren Dong Bao

doi:10.4028/www.scientific.net/AMM.608-609.971

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 608-609Particle Size Effect on FeS Spontaneous Combustion...

Particle Size Effect on FeS Spontaneous Combustion Characters in Petroleum

Abstract:

In order to evaluate the effect of particle size on FeS Spontaneous Combustion Characters, four different grain diameters of FeS particles (100, 170, 220, 320-mesh) were detected in the experiment. The reaction process at heating rates of 5°C /min in air flow from 30°C to 900°C were studied by TG-DSC and oxidation kinetic analysis. The activation energies of samples were calculated by the Coats-Redfern method. It is found that four reaction mechanisms are involved in FeS spontaneous combustion for different particle sizes; the activation energy values change from 307.4 to 398.05 kJ/mol; larger size particles have higher activation energy values; so grain diameters larger than 100-mesh size samples are less inclined to be oxidized and self-ignited.

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Periodical:

Applied Mechanics and Materials (Volumes 608-609)

Pages:

971-975

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.608-609.971

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Online since:

October 2014

Authors:

Man Yang*, Xian Feng Chen, Yu Jiao Shang, Ren Dong Bao

Keywords:

Ferrous Sulfide, Particle Size Effect, Reaction Dynamics, Spontaneous Combustion, Thermal Dynamics

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