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- W2019499893 abstract "This first article (I) considers the homogeneous pyrolysis at very low conversion of an organic substance, μH, involving a single principal stoichiometry (μH = m + βH) and proceeding by a mechanism in which the chains are propagated by free radicals (β• and μ•) according to the steps:[Formula: see text]The mechanism μH, YH of Niclause and co-workers interprets numerous effects of acceleration, or of inhibition, by hydrogenated additives YH, in the pyrolysis of such organic substances μH.A novel hydraulicanalogy is proposed to describe the propagation of chains in these reactions. This analogy immediately permits a better comprehension of the concept of a step which limits the rate of propagation in the decomposition of pure [μH, namely the bimolecular process [3] in the limiting case [A] where [Formula: see text], or the unimolecular process [2] in the limiting case [B] where [Formula: see text]. The analogy also leads to a better understanding of why a pyrolysis which follows the limiting case [A] (e.g. neopentane) may be accelerated by certain hydrogenated additives (HCl, HBr, H 2 S), while a thermal decomposition following the limiting case [B] (e.g. ethane) cannot be accelerated by any hydrogenated additive according to this mechanism.In a second article (II), the preceding considerations will be extended to the case of an organic substance μH whose decomposition involves several principal primary stoichiometrics. [Journal Translation]" @default.
- W2019499893 created "2016-06-24" @default.
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- W2019499893 date "1982-02-01" @default.
- W2019499893 modified "2023-09-26" @default.
- W2019499893 title "Influence complexe d'additifs hydrogénés sur le craquage de substances organiques et analogie hydraulique pour la propagation des chaînes. I. Cas d'une pyrolyse à une seule stoechiométrie" @default.
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- W2019499893 doi "https://doi.org/10.1139/v82-039" @default.
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