Composition of asphaltenes of heavy oil residues from the Usinskoye oil field

T. V. Cheshkova, A. D. Arysheva, R. S. Min, T. Sagachenko
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引用次数: 2

Abstract

A comparative study of the composition and structure of asphaltenic components of fuel oil and heavy naphthenic-aromatic oil is carried out. The similarities and differences of their structural-group composition, the composition of fragments bound in molecules of asphaltenes through ether and sulfide bridges are revealed. It is shown that the effect of temperature results in the lower content of compounds in the products of the C–S and C–O bond cleavage. The differences revealed are most likely due to the changes in molecular architecture of the initial asphaltenes. A comparative analysis of the compounds identified shows that most of them are bound through sulfide bridges. It can be assumed that most of the ether bridges located on the periphery of molecules of asphaltenes broke the first in the course of fuel oil production. Sulfide bonds are in the core of asphaltenes.A comparative study of the composition and structure of asphaltenic components of fuel oil and heavy naphthenic-aromatic oil is carried out. The similarities and differences of their structural-group composition, the composition of fragments bound in molecules of asphaltenes through ether and sulfide bridges are revealed. It is shown that the effect of temperature results in the lower content of compounds in the products of the C–S and C–O bond cleavage. The differences revealed are most likely due to the changes in molecular architecture of the initial asphaltenes. A comparative analysis of the compounds identified shows that most of them are bound through sulfide bridges. It can be assumed that most of the ether bridges located on the periphery of molecules of asphaltenes broke the first in the course of fuel oil production. Sulfide bonds are in the core of asphaltenes.
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Usinskoye油田稠油残渣沥青质的组成
对燃料油和重质环芳烃油沥青质组分的组成和结构进行了比较研究。揭示了两者结构基团组成的异同,以及沥青质分子中通过醚桥和硫化物桥结合的碎片组成。结果表明,温度的影响导致C-S键和C-O键裂解产物中化合物含量降低。所揭示的差异很可能是由于初始沥青质的分子结构的变化。对所鉴定化合物的比较分析表明,它们中的大多数是通过硫化物桥结合的。可以认为,大部分位于沥青质分子外围的醚桥在燃料油生产过程中首先断裂。硫化物键位于沥青质的核心。对燃料油和重质环芳烃油沥青质组分的组成和结构进行了比较研究。揭示了两者结构基团组成的异同,以及沥青质分子中通过醚桥和硫化物桥结合的碎片组成。结果表明,温度的影响导致C-S键和C-O键裂解产物中化合物含量降低。所揭示的差异很可能是由于初始沥青质的分子结构的变化。对所鉴定化合物的比较分析表明,它们中的大多数是通过硫化物桥结合的。可以认为,大部分位于沥青质分子外围的醚桥在燃料油生产过程中首先断裂。硫化物键位于沥青质的核心。
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