Effects of oxygen concentration and heating rate on coal spontaneous combustion characteristics

Zhao, Jia-Rong; Xiao, Yang; Zhong, Kai-Qi; Li, Qingwei; Zhai, Xiaowei

doi:10.1007/s10973-023-12041-3

J Therm Anal Calorim

2023

DOI: 10.1007/s10973-023-12041-3

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Effects of oxygen concentration and heating rate on coal spontaneous combustion characteristics

Jia-Rong Zhao

Yang Xiao

Kai-Qi Zhong

et al.

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Cited by 11 publications

References 45 publications

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Thermal properties and the decomposition path of novel UV polymers of terpene-based monomer: citronellyl methacrylate

Makowskaya,

Jargieło,

Worzakowska

et al. 2023

J Therm Anal Calorim

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Thermal properties and the decomposition path of more environmentally friendly polymers in both atmospheres: inert and oxidizing have been studied with a use of simultaneous TG/FTIR/QMS and DSC methods. The polymeric materials in the UV-polymerization process of cyclohexyl methacrylate and methacrylate monomer obtained from natural terpene alcohol: citronellol, using different compositions of monomers were prepared. The glass transition temperature (Tg) and thermal stability of these high solvent and chemical resistant materials were dependent on the composition and increased with increasing cyclic monomer content in the compositions. The Tg changed from 9.8˚C to 47.5˚C and a thermal stability from 195˚C to 222˚C (inert atmosphere) and from 160˚C to 217˚C (oxidizing atmosphere). The TG/FTIR/QMS analysis proved the emission of cyclohexyl methacrylate, citronellyl methacrylate and their lower molecular mass decomposition fragments, e.g., propene, cyclohexane, citronellol, citronellal, formic acid, methacrylic acid and CO, CO2 during heating of these materials in helium and air atmospheres. It indicated the same radical mechanism of their decomposition in both atmospheres which meant that the presence of oxygen did not affect the course of decomposition but reduced the initial decomposition temperature of the copolymers.

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Thermal properties and the decomposition path of novel UV polymers of terpene-based monomer: citronellyl methacrylate

Makowskaya,

Jargieło,

Worzakowska

et al. 2023

J Therm Anal Calorim

View full text Add to dashboard Cite

show abstract

Thermal behaviors and kinetic characteristics of coal spontaneous combustion at multiple airflow rates by TG − DSC

Xiao,

Huang,

Yin

et al. 2024

J Therm Anal Calorim

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Effects of particle size and oil-immersed concentration on the dust layer minimum ignition temperature and combustion characteristics of oil-immersed coal

Luo,

Yang,

Ding

et al. 2024

J Therm Anal Calorim

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Effects of oxygen concentration and heating rate on coal spontaneous combustion characteristics

Cited by 11 publications

References 45 publications

Thermal properties and the decomposition path of novel UV polymers of terpene-based monomer: citronellyl methacrylate

Thermal properties and the decomposition path of novel UV polymers of terpene-based monomer: citronellyl methacrylate

Thermal behaviors and kinetic characteristics of coal spontaneous combustion at multiple airflow rates by TG − DSC

Effects of particle size and oil-immersed concentration on the dust layer minimum ignition temperature and combustion characteristics of oil-immersed coal

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