The Composition of Nitrogen-Containing Bases of Petroleum from Meso-jurassic Depositions of West Siberia
ELENA YU. KOVALENKO, TATIANA A. SAGACHENKO and PETR B. KADYCHAGOV
Institute of Petroleum Chemistry, Siberian Branch of the Russian Academy of Sciences, Pr. Akademichesky 3, Tomsk 634021 (Russia), E-mail: dissovet@ipc.tsc.ru
Pages: 307-314
Abstract
Weakly basic nitrogen-containing compounds of petroleum from Meso-jurassic deposits of West Siberia are investigated. It is demonstrated that they are represented by the compounds with weakly basic functional groups and by strong bases with the developed aliphatic substitution. Weakly basic compounds of petroleum under investigation contain cyclic amides like pyridones, their hydrogenated analogs, quinoline-carboxylic acids and their esters. Cyclic amides are prevailing in petroleum. Among strong bases that accompany the compounds with weakly basic functional groups, we identified the derivatives of pyridine, quinoline, benzo- and dibenzoquinoline, more condensed polycycloaromatic compounds, thiazol and thiophenoquinoline. Nitrogen-containing strong bases are predominant. With increasing age of Meso-jurassic deposits, the fraction of lactams and strong bases with the total formula CnH2nzN increase in the low-molecular nitrogen-containing organic compounds of petroleum.
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