Oxygen- and Nitrogen-Containing Structural Fragments of Resin and Asphaltene Macromolecules Inherent in Heavy Oil from the Usinsk Oilfield
T. V. CHESHKOVA, E. YU. KOVALENKO and T. A SAGACHENKO
Institute of Petroleum Chemistry, Siberian Branch of the Russian Academy of Sciences,
Pr. Akademicheskiy 4, Tomsk 634021 (Russia)
E-mail: azot@ipc.tsc.ru
Keywords: resins, asphaltenes, nitrogen bases, esters and ethers, composition
Pages: 333–340
Abstract
The composition and structural features of the resin-asphaltene macromolecular fragments inherent in the substances from the Usinsk oilfield were investigated. It has been demonstrated that they contain ether and/or ester groups. Nitrogenous bases in the form of supramolecular structures are present only in the structure of the resinous components.
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