Asphaltenes, and their related issues, have been the focus of many literature investigations.
However, in-depth analysis of asphaltenes structure and its relation to asphaltenes stability …

Asphaltenes have traditionally been conceived as highly aromatic, alkyl-deficient
compounds enriched in pericondensed aromatic “island” motifs. This structural definition …

Complex molecular structure, high impurity content, and self-association tendency of
asphaltenes make the determination of their phase behavior very difficult. Because …

Asphaltenes are a complex mixture of molecular structures with a variety of functionalities,
which in turn impacts their physical properties. Discriminating between asphaltenes that are …

Significant effort has been dedicated to understand the variables affecting asphaltene
precipitation. Based on years of research, it is well known how variables such as …

Structural and compositional characterization of asphaltenes that were extracted from
unstable crude oils, stable crude oils, and organic solid deposits was performed to elucidate …

The structure and transformation of fused aromatic ring system in asphaltenes play an
important role in the character of asphaltenes, and in step affect the properties of heavy oils …

In this work, we present a series of correlations between physical and chemical properties of
asphaltenes based on extensive characterization of asphaltene solubility fractions from …

In the present study, asphaltene precipitation from Iranian heavy crude oil (Persian Gulf off-
shore) was performed using n-pentane (nC 5) and n-heptane (nC 7) as light alkane …

Asphaltenes of Maya and Isthmus crude oils were precipitated, fractionated and
characterized in this work. Isolation of asphaltenes was performed by following the ASTM …