Journal
PETROLEUM CHEMISTRY
Volume 59, Issue 11, Pages 1195-1200Publisher
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0965544119110100
Keywords
asphaltenes; small-angle X-ray scattering; nitrogen-containing petroleum bases; supramolecular structure
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Funding
- Russian Science Foundation [15-19-00119]
- Russian Science Foundation [18-19-16002, 15-19-00119] Funding Source: Russian Science Foundation
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Using the method of small-angle X-ray scattering (SAXS), the effect of nitrogen-containing compounds on the structure of primary asphaltene clusters and changes in their structure and size characteristics has been studied. It has been shown that the addition of nitrogen bases leads to a partial degradation of the primary aggregates of asphaltenes and the appearance of a larger number of disordered non-compact fragments in the solution, thereby altering the dynamics of the entire aggregation process. Nitrogen bases also provoke a change in the type of packing of the primary particles of asphaltenes, facilitating the formation of a looser secondary structure of asphaltene aggregates.
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