期刊
CHEMISTRY AND TECHNOLOGY OF FUELS AND OILS
卷 54, 期 1, 页码 44-50出版社
SPRINGER
DOI: 10.1007/s10553-018-0896-9
关键词
crude oil disperse systems; complex structural unit; heavy crude oil; road asphalt; fractionation; IR spectroscopy
资金
- Kazan' (Privolzhsky) Federal University
Asphaltene fractions extracted from samples of high-viscosity Ashal'cha (Tatarstan), Boka de Haruko (Cuba), and Tahe (China) deposits and a sample of oxidized road asphalt with trademark BND 50/70 produced by OAO TAIF-NK (OJSC Tatar-American Investments and Finances, Nizhnekamsk) were studied. Five asphaltene fractions of these crude oils and oil products were obtained by step-by-step extraction with solvents of various compositions and dissolving powers. The fractional compositions of asphaltenes from various types of oil and of a product that had been subjected to refinery processing were found to vary. Spectral coefficients were determined from the IR spectroscopic data for individual fractions characterizing the structural-group composition of the subjects of investigation.
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