Pyrolysis of triethyl phosphate

被引：28

作者：

Zegers, EJP ^{[1
]}

Fisher, EM ^{[1
]}

机构：

[1] Cornell Univ, Sibley Sch Mech & Aerosp Engn, Ithaca, NY 14853 USA

来源：

COMBUSTION SCIENCE AND TECHNOLOGY | 1998年 / 138卷 / 1-6期

关键词：

organophosphorus compound; flow reactor; kinetics;

D O I：

10.1080/00102209808952064

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The pyrolytic decomposition of triethyl phosphate (TEP) has been studied at one atmosphere, from 706 to 854K, in an isothermal quartz-lined, 4.5-cm-ID turbulent flow reactor with residence times between 15 and 85 ms. TEP was initially present at levels between 30 and 125 ppm, in N-2. CO was used as an internal standard for mixing. Fourier-transform infrared spectrometry and gas chromatography/mass spectrometry preceded by conversion to trimethylsilyl derivatives were used to measure TEP and its products in samples extracted through quartz sampling tubes. Ethene, ethanol, diethyl phosphate, monoethyl phosphate, and orthophosphoric acid were observed as products. A multistep decomposition mechanism has been proposed, involving parallel pathways producing ethanol and ethene. Overall unimolecular rate parameters for TEP decomposition have been obtained. Wall reactions affect the ethanol-to-ethene ratio, and may also affect the TEP decomposition rate.

引用

页码：85 / 103

页数：19

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