定量分析低温氧化烷烃过程中的过氧化氢。
Quantification of hydrogen peroxide during the low-temperature oxidation of alkanes.
机构信息
LRGP, Université de Lorraine, CNRS, ENSIC, BP 20451, 1 rue Grandville, 54001 Nancy, France.
出版信息
J Am Chem Soc. 2012 Jul 25;134(29):11944-7. doi: 10.1021/ja305200h. Epub 2012 Jul 12.
Abstract
The first reliable quantification of hydrogen peroxide (H(2)O(2)) formed during the low-temperature oxidation of an organic compound has been achieved thanks to a new system that couples a jet stirred reactor to a detection by continuous wave cavity ring-down spectroscopy (cw-CRDS) in the near-infrared. The quantification of this key compound for hydrocarbon low-temperature oxidation regime has been obtained under conditions close to those actually observed before the autoignition. The studied hydrocarbon was n-butane, the smallest alkane which has an oxidation behavior close to that of the species present in gasoline and diesel fuels.
摘要
由于一种新的系统，该系统将射流搅拌反应器与近红外连续波腔衰荡光谱（cw-CRDS）检测相结合，首次实现了低温氧化过程中形成的过氧化氢（H（2）O（2））的可靠定量。在接近自动点火前实际观察到的条件下，获得了这种碳氢化合物低温氧化状态的关键化合物的定量。研究的碳氢化合物是正丁烷，它是最小的烷烃，其氧化行为与汽油和柴油燃料中存在的物质的氧化行为接近。
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