title: NEW EXPERIMENTAL EVIDENCES ABOUT THE FORMATION AND CONSUMPTION OF KETOHYDROPEROXIDES.
abstract: The formation of hydroperoxides postulated in all the kinetic models for the low temperature oxidation of alkanes have been experimentally proved thanks to a new type of apparatus associating a quartz jet-stirred reactor through a molecular-beam sampling system to a reflectron time-of-flight mass spectrometer combined with tunable synchrotron vacuum ultraviolet photoionization. This apparatus has been used to investigate the low-temperature oxidation ofn-butane and has allowed demonstrating the formation of different types of alkylhydroperoxides, namely methylhydroperoxide, ethylhydroperoxide and butylhydroperoxide, and of C4alkylhydroperoxides including a carbonyl function (ketohydroperoxides). In addition, the formation of products deriving from these ketohydroperoxides, such as C4molecules including either two carbonyl groups or one carbonyl and one alcohol functions, has been observed. Simulations using a detailed kinetic model have been performed to support some of the assumptions made in this work.
authors.affiliation: Laboratoire Réactions et Génie des Procédés, CNRS, Nancy Université, ENSIC, 1, rue Grandville, BP 20451, 54001 Nancy Cedex, France.
authors.forename: Frédérique
authors.initials: F
authors.lastname: Battin-Leclerc
authors.forename: Olivier
authors.initials: O
authors.lastname: Herbinet
authors.forename: Pierre-Alexandre
authors.initials: PA
authors.lastname: Glaude
authors.forename: René
authors.initials: R
authors.lastname: Fournet
authors.forename: Zhongyue
authors.initials: Z
authors.lastname: Zhou
authors.forename: Liulin
authors.initials: L
authors.lastname: Deng
authors.forename: Huijun
authors.initials: H
authors.lastname: Guo
authors.forename: Mingfeng
authors.initials: M
authors.lastname: Xie
authors.forename: Fei
authors.initials: F
authors.lastname: Qi
keywords: Jet-stirred reactor; hydroperoxides; low-temperature oxidation; molecular beam-mass spectrometry; n-butane