Study on Pyrolysis Characteristics of Chinese Fir under Different Natural Aging Times

Yan, Huailin; Zhu, Guo‐Qing; Zhao, Yongchang

doi:10.3390/fire5050161

Cited by 1 publication

(1 citation statement)

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“…Kinetic analysis mainly focuses on the rate and reaction mechanism in the process of material and energy conversion, which plays an important role in the study of solid combustible pyrolysis [19,20], and provides an important theoretical basis in the fields of catalyst design, reaction optimization, environmental protection, and energy conversion [21][22][23]. The pyrolysis kinetic equation of single-base propellant can be mathematically characterized by Equations ( 1) and (2).…”

Section: Kinetic Methodsmentioning

confidence: 99%

Study on Pyrolysis Behaviors and Characteristics, Thermodynamics, Kinetics, and Volatiles of Single-Base Propellant, a Typical Energy-Containing Material

Liu,

Zheng,

et al. 2023

Fire

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The widespread use of single-base propellant may contribute to serious pollution of the environment. The study of single-base propellant pyrolysis could provide an in-depth understanding of the combustion mechanism, reveal the key steps and reaction kinetics of the combustion process, and reduce the damage when using single-base propellant to the environment. In the present study, the pyrolysis behaviors, pyrolysis characteristic parameters, kinetics, thermodynamics, and volatiles of single-base propellant pyrolysis in an argon atmosphere were studied. The results showed that the main temperature ranges of pyrolysis and heat variation were 400–700 K and 450–520 K, respectively. With the increase in the heating rate, the maximum/average reaction rate of pyrolysis increased, the maximum instantaneous heat flow and the heat flow integral increased, the pyrolysis and combustion performance increased, and the thermal stability decreased. The average global activation energy and pre-exponential factor of the pyrolysis were 202.82 kJ and 9.48 × 1021, respectively. Thermodynamic analysis showed that the single-base propellant pyrolysis was a spontaneous endothermic reaction with a low energy barrier and fast reaction rate, which was beneficial to the formation of active complexes. In addition, information on the main volatiles was obtained, including H2, CH4, C2H4, C2H6, H2O, HCN, HCOOH, NO2, HONO, and CO2.

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