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Minor products and initiation rate in the chain pyrolysis of propane

โœ Scribed by C. Juste; G. Scacchi; M. Niclause


Publisher
John Wiley and Sons
Year
1981
Tongue
English
Weight
438 KB
Volume
13
Category
Article
ISSN
0538-8066

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โœฆ Synopsis


Abstract

With a continuous jetโ€stirred tank reactor operating at small space time (0.05โ€“1.2 s) the kinetics of the formation of six minor products (ethane, isobutane, buteneโ€1, 2,3โ€dimethylโ€butane, 4โ€methylpenteneโ€1, and 1,5โ€hexadiene) are studied during the pyrolysis of propane, at small extents of reaction and over the temperature range of 600โ€“780ยฐC. The experimental results are in agreement with the free radical mechanism proposed by Jezequel, Baronnet, and Niclause for this reaction. They show that the two most important termination processes are
equation image
The measured rates of formation of the minor products are consistent with the quasiโ€identical values estimated by Jezequel and coโ€workers (between 475 and 505ยฐC) and by Allara and Edelson (between 510 and 560ยฐC) for kinetic parameters (A~1~ โ‰ƒ 10^16.65^ s^โˆ’1^ and E~1~ โ‰ƒ 84.7 kcal/mole) of the chain initiation process
equation image


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