Study of the heavy oil asphaltenes oxidation products composition using EPR and IR spectroscopy
К. В. ШабалинFRC Kazan Scientific Center, Russian Academy of Sciences, Kazan, RussiaЛ. Е. ФоссFRC Kazan Scientific Center, Russian Academy of Sciences, Kazan, RussiaYu. Yu. BorisovaFRC Kazan Scientific Center, Russian Academy of Sciences, Kazan, RussiaД. Н. БорисовFRC Kazan Scientific Center, Russian Academy of Sciences, Kazan, RussiaS. G. YakubovaArbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Kazan, RussiaM. R. YakubovArbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Kazan, Russia
2020en
ABI
Annotatsiya
In this work, variations of heavy oil asphaltenes’ oxidation reactions under different conditions were investigated. By IR spectroscopy was shown a predominant destruction of occluded and adsorbed compounds in asphaltenes when using KIO3 and NaIO4 as oxidizing agents. In the case of CH3COOH/H2O2 and KMnO4 was determined the destruction of asphaltenes supermolecules with a formation of carboxyl groups. EPR spectroscopy demonstrated decrease of content of vanadyl complexes spin per gram of oxygenates 0.5–2 times in comparison with initial asphaltenes, which indicates the separation of occluded metalloporphyrins. Content of free stable radicals in high molecular products increased in 2–4 times.
Hali tarjima qilinmagan
Identifikatorlar
Iqtiboslar va manbalar
3 ta iqtibos0 ta foydalanilgan manba