| 异丁烷高温热解反应动力学和机理 |
| |
| 引用本文： | 应立明,韩德刚,杨惠星.异丁烷高温热解反应动力学和机理[J].物理化学学报,1994,10(3):223-229. |
| |
| 作者姓名： | 应立明 韩德刚 杨惠星 |
| |
| 作者单位： | Department of Chemistry, Peking University, Beijing 100871 |
| |
| 摘 要： | 用激波管激光纹影技术测定了异丁烷高温热解反应信号，对热解过程中重要单分子反应的降变行为作了理论计算，建立了由五十个基元反应组成的反应机理并进行了计算机模拟，本文得到引发反应i-C_4H_(10)→CH_3＋i-C_3H_7在温度为1500－1850 K，压1.00×10~4-2.00×10~4 Pa时的速率常数为k_1＝6.22×10~(11) exp(－457000/RT)±50％(S~(-1))．这一结果与降变理论计算符合得很好．
|
| 关 键 词： | 热解 反应动力学 反应机理 激波 |
| 收稿时间： | 1992-09-08 |
| 修稿时间： | 1993-02-04 |
Reaction Kinetics and Mechanism of the Pyrolysis of Isobutane at High Temperature |
| |
| Ying Liming,Han Degang,Yang Huixing.Reaction Kinetics and Mechanism of the Pyrolysis of Isobutane at High Temperature[J].Acta Physico-Chimica Sinica,1994,10(3):223-229. |
| |
| Authors: | Ying Liming Han Degang Yang Huixing |
| |
| Institution: | Department of Chemistry, Peking University, Beijing 100871 |
| |
| Abstract: | 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. |
| |
| Keywords: | Pyrolysis Reaction kinetics Reaction mechanism Shock wave |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《物理化学学报》浏览原始摘要信息 |
| 点击此处可从《物理化学学报》下载免费的PDF全文 |
