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Carbonization properties of partially hydrogenated aromatic compounds—II: Factors influencing the coke yield in the carbonization of hydrogenated pyrene

✍ Scribed by Isao Mochida; Kazuhiro Tamaru; Yozo Korai; Hiroshi Fujitsu; Kenjiro Takeshita

Publisher
Elsevier Science
Year
1982
Tongue
English
Weight
726 KB
Volume
20
Category
Article
ISSN
0008-6223

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✦ Synopsis

Factors influencing the coke yield in the carbonization of hydrogenated pyrenes were investigated from the view of reactivities of their hydrogens. The amount of hydrogen located at 4ppm in their proton NMR spectrum was found to be intimately related to the coke yield of hydrogenated pyrenes. Oxidative pretreatment at 150°C significantly increased the coke yield. The structural changes of hydrogenated pyrenes by oxidative pretreatment were investigated by means of GPC, IR and NMR. The scheme of oligomerization as the first step of carbonization is discussed in connection with the reactivities of hydrogens in hydrogenated pyrenes.

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Carbonization properties of partially hy
Carbonization properties of partially hydrogenated aromatic compounds—I: Carbonization of partially hydrogenated pyrene prepared by Birch reduction
✍ Isao Mochida; Hideichi Matsuoka; Hiroshi Fujitsu; Yozo Korai; Kenjiro Takeshita 📂 Article 📅 1981 🏛 Elsevier Science 🌐 English ⚖ 582 KB

The carbonization properties of pyrene hydrogenated by Birch reduction to a variable extent were studied at 600°C under atmospheric pressure, in order to examine the in~uence of partial hydrogenation on the carbonization reactivity. Pyrene, which did not yield any coke, produced coke with flow textu