Thermal analysis hydrodynamics study on FeS

Sheng Ping Zhao; Jun Cheng Jiang

doi:10.3969/j.issn.1673-5005.2010.05.030

Thermal analysis hydrodynamics study on FeS

Sheng Ping Zhao, Jun Cheng Jiang

College of Safety Science and Engineering

Nanjing Tech University

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

The oxidative tendency of FeS was studied by the thermal gravimetric analysis (TG) and differential scanning calorimetry (DSC). The hydrodynamics parameters of FeS were calculated using multiple heating rate method. The results show that there are two peaks in the DSC curve of FeS sample. The first peak, which appears at about 143°C, arose from the transformation of FeS phase, and the second peak, presenting at high temperature, is the result of FeS oxidated. The rule of mass constant→ mass gain → mass loss → mass constant emerges in the TG curve of FeS. But the initial temperature of FeS oxidation is high and the oxidational course is long. The activated energy of FeS was 125.89 kJ/mol and the pre-exponential factor is equal to 1.55763 × 10¹¹s^-1. The oxidative reaction of FeS is up to the Avrami-Erofeev kinetic model and the conversion function is G(α)=[-ln(1-α)]^0.4124.

Original language	English
Pages (from-to)	164-167+173
Journal	Zhongguo Shiyou Daxue Xuebao (Ziran Kexue Ban)/Journal of China University of Petroleum (Edition of Natural Science)
Volume	34
Issue number	5
DOIs	https://doi.org/10.3969/j.issn.1673-5005.2010.05.030
State	Published - Oct 2010

Keywords

Activated energy
Ferrous sulfides
Hydrodynamics
Multiple heating rate method
Pre-exponential factor
Reaction function

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title = "Thermal analysis hydrodynamics study on FeS",

abstract = "The oxidative tendency of FeS was studied by the thermal gravimetric analysis (TG) and differential scanning calorimetry (DSC). The hydrodynamics parameters of FeS were calculated using multiple heating rate method. The results show that there are two peaks in the DSC curve of FeS sample. The first peak, which appears at about 143°C, arose from the transformation of FeS phase, and the second peak, presenting at high temperature, is the result of FeS oxidated. The rule of mass constant→ mass gain → mass loss → mass constant emerges in the TG curve of FeS. But the initial temperature of FeS oxidation is high and the oxidational course is long. The activated energy of FeS was 125.89 kJ/mol and the pre-exponential factor is equal to 1.55763 × 1011s-1. The oxidative reaction of FeS is up to the Avrami-Erofeev kinetic model and the conversion function is G(α)=[-ln(1-α)]0.4124.",

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author = "Zhao, {Sheng Ping} and Jiang, {Jun Cheng}",

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T1 - Thermal analysis hydrodynamics study on FeS

AU - Zhao, Sheng Ping

AU - Jiang, Jun Cheng

PY - 2010/10

Y1 - 2010/10

N2 - The oxidative tendency of FeS was studied by the thermal gravimetric analysis (TG) and differential scanning calorimetry (DSC). The hydrodynamics parameters of FeS were calculated using multiple heating rate method. The results show that there are two peaks in the DSC curve of FeS sample. The first peak, which appears at about 143°C, arose from the transformation of FeS phase, and the second peak, presenting at high temperature, is the result of FeS oxidated. The rule of mass constant→ mass gain → mass loss → mass constant emerges in the TG curve of FeS. But the initial temperature of FeS oxidation is high and the oxidational course is long. The activated energy of FeS was 125.89 kJ/mol and the pre-exponential factor is equal to 1.55763 × 1011s-1. The oxidative reaction of FeS is up to the Avrami-Erofeev kinetic model and the conversion function is G(α)=[-ln(1-α)]0.4124.

AB - The oxidative tendency of FeS was studied by the thermal gravimetric analysis (TG) and differential scanning calorimetry (DSC). The hydrodynamics parameters of FeS were calculated using multiple heating rate method. The results show that there are two peaks in the DSC curve of FeS sample. The first peak, which appears at about 143°C, arose from the transformation of FeS phase, and the second peak, presenting at high temperature, is the result of FeS oxidated. The rule of mass constant→ mass gain → mass loss → mass constant emerges in the TG curve of FeS. But the initial temperature of FeS oxidation is high and the oxidational course is long. The activated energy of FeS was 125.89 kJ/mol and the pre-exponential factor is equal to 1.55763 × 1011s-1. The oxidative reaction of FeS is up to the Avrami-Erofeev kinetic model and the conversion function is G(α)=[-ln(1-α)]0.4124.

KW - Activated energy

KW - Ferrous sulfides

KW - Hydrodynamics

KW - Multiple heating rate method

KW - Pre-exponential factor

KW - Reaction function

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JO - Zhongguo Shiyou Daxue Xuebao (Ziran Kexue Ban)/Journal of China University of Petroleum (Edition of Natural Science)

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IS - 5

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Thermal analysis hydrodynamics study on FeS

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