Results 131 to 140 of about 18,552 (210)

Hydrothermal transformation of kerogen and oil in Low-permeability rocks of the domanic deposits in carbon dioxide media. [PDF]

open access: yesSci Rep
Mikhailova A   +6 more
europepmc   +1 more source
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Interfacial behavior of asphaltenes

Advances in Colloid and Interface Science, 2016
We review the existing literature on asphaltenes at various types of interfaces: oil-water, air-water, gas-oil and solid-liquid, with more emphasis on the oil-water interfaces. We address the role of asphaltene aggregation, recently clarified for asphaltenes in bulk by the Yen-Mullins model.
Dominique, Langevin   +1 more
openaire   +3 more sources

Influence of asphaltenes and resins on water/model oil interfacial tension and emulsion behavior: Comparison of extracted fractions from crude oils with different asphaltene stability

Journal of Petroleum Science and Engineering, 2021
Asphaltenes and resins make a major contribution for the formation of stable water-in-oil emulsions during crude production, which could affect process operations and increase costs.
C. A. Alves   +3 more
semanticscholar   +1 more source

Evolution of adsorbed layers of asphaltenes at oil-water interfaces: A novel experimental protocol.

Journal of Colloid and Interface Science, 2021
HYPOTHESIS Asphaltenes can form rigid interfacial films surrounding water droplets rendering water separation from crude oil sluggish. Therefore, the quantitative characterization of such complex film formation is of great importance.
Sefatallah Ashoorian   +3 more
semanticscholar   +1 more source

Structure, rheology and possible application of water-in-oil emulsions stabilized by asphaltenes

, 2021
Asphaltenes and resins remaining after heavy crude oil deasphalting (termed asphaltenes) require rational utilization. Due to their surface activity, such utilization can consist in obtaining and stabilizing water-in-oil emulsions. In this study, several
S. N. Gorbacheva, S. Ilyin
semanticscholar   +1 more source

A review on asphaltenes characterization by X-ray diffraction: Fundamentals, challenges, and tips

, 2021
Asphaltenes with complicated molecular structures consist of many aromatic portions, alkyl chains, and different functional groups. Various methods can determine their average structure.
Zahra Sadeghtabaghi   +2 more
semanticscholar   +1 more source

Detailed FTIR spectroscopy characterization of crude oil extracted asphaltenes: Curve resolve of overlapping bands

, 2020
In recent years, characterization of asphaltenes as an appropriate way to deal with their related problems in the oil industry has been received considerable attention.
M. Asemani, A. Rabbani
semanticscholar   +1 more source

A review on novel applications of asphaltenes: A valuable waste

, 2021
Asphaltene is the most complex component of crude oil, consisting of various molecular structures, e.g., different molecular weights and number of rings per fused-ring system (or aromatic moiety).
M. Kamkar, G. Natale
semanticscholar   +1 more source

Asphaltenes in asphalt: Direct observation and evaluation of their impacts on asphalt properties

, 2021
Over the years, different hypotheses and speculations have been developed on asphaltenes, but their presence in asphalt has never been directly observed.
Yuhong Wang   +4 more
semanticscholar   +1 more source

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