The dynamics of asphaltene aggregates in heavy crude oils on a nanometer scale studied via small-angle X-ray scattering in situ

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The dynamics of asphaltene aggregates in heavy crude oils on a nanometer scale studied via small-angle X-ray scattering in situ. / Larichev, Yu V.; Martyanov, O. N.

в: Journal of Petroleum Science and Engineering, Том 165, 01.06.2018, стр. 575-580.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

BibTeX

@article{8f506b763cfb4cde84e049dc35789cee,

title = "The dynamics of asphaltene aggregates in heavy crude oils on a nanometer scale studied via small-angle X-ray scattering in situ",

abstract = "This work presents the results of the in situ SAXS study of the asphaltene aggregate transformations due to dilution of several heavy crude oils by heptane within the time range from 5 min to 3 days. The main growth of the asphaltene aggregates was usually observed within first minutes. The analysis of the SAXS data obtained in situ for the oils having significantly different relative content of resins showed their great influence on the dynamics of aggregates formation on a nanometer scale. In particular, it has been shown that the resins can prevent the asphaltene aggregation via certain mechanism which usually leads to the high anisotropy of the aggregates. Therefore the relative content of resin and asphaltenes as well as aromatics and aliphatics lead to the asphaltene aggregates with different shapes and different density of deposits.",

keywords = "Aggregation, Asphaltenes, Heavy crude oils, In-situ, SAXS",

author = "Larichev, {Yu V.} and Martyanov, {O. N.}",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

month = jun,

day = "1",

doi = "10.1016/j.petrol.2018.02.063",

language = "English",

volume = "165",

pages = "575--580",

journal = "Journal of Petroleum Science and Engineering",

issn = "0920-4105",

publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - The dynamics of asphaltene aggregates in heavy crude oils on a nanometer scale studied via small-angle X-ray scattering in situ

AU - Larichev, Yu V.

AU - Martyanov, O. N.

PY - 2018/6/1

Y1 - 2018/6/1

N2 - This work presents the results of the in situ SAXS study of the asphaltene aggregate transformations due to dilution of several heavy crude oils by heptane within the time range from 5 min to 3 days. The main growth of the asphaltene aggregates was usually observed within first minutes. The analysis of the SAXS data obtained in situ for the oils having significantly different relative content of resins showed their great influence on the dynamics of aggregates formation on a nanometer scale. In particular, it has been shown that the resins can prevent the asphaltene aggregation via certain mechanism which usually leads to the high anisotropy of the aggregates. Therefore the relative content of resin and asphaltenes as well as aromatics and aliphatics lead to the asphaltene aggregates with different shapes and different density of deposits.

AB - This work presents the results of the in situ SAXS study of the asphaltene aggregate transformations due to dilution of several heavy crude oils by heptane within the time range from 5 min to 3 days. The main growth of the asphaltene aggregates was usually observed within first minutes. The analysis of the SAXS data obtained in situ for the oils having significantly different relative content of resins showed their great influence on the dynamics of aggregates formation on a nanometer scale. In particular, it has been shown that the resins can prevent the asphaltene aggregation via certain mechanism which usually leads to the high anisotropy of the aggregates. Therefore the relative content of resin and asphaltenes as well as aromatics and aliphatics lead to the asphaltene aggregates with different shapes and different density of deposits.

KW - Aggregation

KW - Asphaltenes

KW - Heavy crude oils

KW - In-situ

KW - SAXS

UR - http://www.scopus.com/inward/record.url?scp=85042947592&partnerID=8YFLogxK

U2 - 10.1016/j.petrol.2018.02.063

DO - 10.1016/j.petrol.2018.02.063

M3 - Article

AN - SCOPUS:85042947592

VL - 165

SP - 575

EP - 580

JO - Journal of Petroleum Science and Engineering

JF - Journal of Petroleum Science and Engineering

SN - 0920-4105

ER -

ID: 10422859