Reaction of aliphatic C5 hydrocarbons with oxygen in the gas phase
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A study was made of the reaction of oxygen with isopentane, three isopentenes and isoprene in the absence of a catalyst at 350–550°, using a molar ratio of hydrocarbon∶oxygen=1∶1.2 -1.4. Here the total conversion of the starting hydrocarbons can reach 50–70% (at 550°).
Under the studied conditions the starting hydrocarbons were converted mainly to hydrocarbons with a lower molecular weight having a C1-C4 composition, and, in addition, together with other reactions that went to slight degree, there occurred dehydrogenation of isopentane to isopentenes (up to 17%), and of isopentenes to isoprene (up to 15%); isoprene underwent the greatest change of all and in a more complex manner; the oxidation reaction occurred to the greatest degree in the case of the isopentenes and isoprene.
KeywordsOxidation Oxygen Molecular Weight Hydrocarbon Lower Molecular Weight
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