
Citation: Ying Li-Ming, Han De-Gang, Yang Hui-Xing. Reaction Kinetics and Mechanism of the Pyrolysis of Isobutane at High Temperature[J]. Acta Physico-Chimica Sinica, 1994, 10(03): 223-229. doi: 10.3866/PKU.WHXB19940307

异丁烷高温热解反应动力学和机理
English
Reaction Kinetics and Mechanism of the Pyrolysis of Isobutane at High Temperature
The pyrolysis reaction signals of isobutane at high temperature have been measured by the shock-tube laser-schlirene technique. The fall-offe of some essential uni molecular reactions occuring in the pyrolysis process have been calculated theoretically. A mechanism including fifty elementary reactions has been established and simulated by computer. Rate constant of the initial reaction i-C_4H_(10)→CH_3+i-C_3H_7 obtained at temperature of 1500—1800 K and pressure of 1.00 ×10~4-2.00×10~4 Pa was k_1=6.22×10~(11) exp (-457000/RT)±50%(s~(-1)). The result was well accordant with the theoretical fall-off calculation.
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Key words:
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Pyrolysis
- / Reaction kinetics
- / Reaction mechanism
- / Shock wave

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