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Advanced Self-Healing Asphalt Reinforced by Graphene Structures: An Atomistic Insight

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Published on: May 31, 2022

Model molecules mimicking asphaltenes.

Johan Sjöblom¹, Sébastien Simon¹, Zhenghe Xu²

¹Ugelstad Laboratory, Norwegian University of Science and Technology, 7491 Trondheim, Norway.

Advances in Colloid and Interface Science

|February 2, 2015

Summary

This summary is machine-generated.

Asphaltenes, complex petroleum components causing production issues, are better understood using model molecules. Researchers review various models to mimic asphaltene properties and stability mechanisms.

Keywords:

Aggregation Asphaltenes Crude oil Emulsion Model compounds Petroleum

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Area of Science:

Petroleum Chemistry
Colloid Science

Background:

Asphaltenes are complex petroleum fractions insoluble in n-alkanes but soluble in toluene.
Their polydisperse nature complicates understanding of their properties and behavior.
Asphaltenes cause significant challenges in crude oil production, processing, and transport due to emulsion formation and deposition.

Purpose of the Study:

To review and compare different asphaltene model molecules developed over the last decade.
To assess the ability of these model compounds to mimic the properties of real asphaltenes.
To elucidate the mechanisms behind asphaltene properties and emulsion stabilization.

Main Methods:

Review of literature on various asphaltene model compounds.
Comparison of properties between model compounds and fractionated asphaltenes.
Analysis of bulk and interfacial properties of perylene-based model compounds.
Evaluation of emulsion-stabilization capabilities.

Main Results:

Different research groups have proposed various model molecules to represent asphaltenes.
Model compounds offer insights into the complex behavior of asphaltenes.
Perylene-based models show specific bulk and interfacial properties relevant to asphaltenes.
Model compounds demonstrate emulsion-stabilization properties comparable to natural asphaltenes.

Conclusions:

Model asphaltene compounds are crucial for understanding the complex properties and behavior of petroleum asphaltenes.
The development and study of model molecules facilitate the investigation of emulsion formation and deposition mechanisms.
Further research on model compounds, like perylene-based structures, aids in addressing challenges in the oil industry.