Composition of petroleum asphaltenes derived from ruthenium-catalyzed oxidation |
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| Institution: | 1. Institute of Petroleum Chemistry, Siberian Branch of the Russian Academy of Sciences, 634055 Tomsk, Russian Federation;2. Tomsk Polytechnic University, 634050 Tomsk, Russian Federation |
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| Abstract: | Ruthenium ion-catalyzed oxidation of methanonaphthene oil (Krapivinskoye oilfield) revealed that its high molecular asphaltenes contain aromatic–aliphatic bridges and non- covalently bound (occluded) compounds. Covalently bound fragments are represented by C5–C18 n-alkanes, aromatic biphenyl-type structures, and naphthalenes located in the peripheral part of asphaltene molecules. Typical biological markers, i.e. terpanes, steranes, and n-alkanes have been identified among the occluded compounds. |
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| Keywords: | asphaltenes oxidation ruthenium ions catalysis esters phthalic anhydride mass spectrometry alkylarenes arylalkanes |
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