Citation: Qin Xiaomei, Chen Yapei, Fang Wenjun. Thermal Stability of n-Alkanes under Supercritical Condition[J]. Chemistry, ;2019, 82(2): 158-162. shu

Thermal Stability of n-Alkanes under Supercritical Condition

1.
Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450000
2.
Department of Chemistry, Zhejiang University, Hangzhou 310058

Received Date: 7 August 2018
Accepted Date: 24 September 2018

Figures(9)

The thermal decomposition for n-octane, n-nonane, n-decane, n-undecane, and n-dodecane under supercritical condition is investigated in a constant-volume reactor respectively. A simplifying assumption of the first-order reaction is used to describe the decomposition of the n-alkanes. The gaseous and liquid products of the thermal decomposition are monitored, and the relationship between the amounts of produced aromatics in the liquid residues and their thermal stability is investigated. At the same conditions of reaction temperature and time, the rate of thermal decomposition, the conversion, or the content of aromatic products increases with increasing the number of odd or even carbon atoms of alkanes, respectively. The produced aromatics increases exponentially with increasing the conversion of thermal decomposition, which reflects the regular changes of the thermal stability and decomposition severity of hydrocarbon fuels.
- n-Alkanes,
- Thermal decomposition,
- Thermal stability,
- Aromatics
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