Asphalthenes are typically defined as the fraction of petroleum insoluble in n-alkanes
(typically heptane, but also hexane or pentane) but soluble in toluene. This fraction causes …

Asphaltenes with complicated molecular structures consist of many aromatic portions, alkyl
chains, and different functional groups. Various methods can determine their average …

The third edition of this besteller covers the latest advancements in this rapidly growing field.
Focusing on analyses and critical evaluation of the subject, this new edition reviews the …

Importance of asphaltene characteristics, the characterization techniques, and the practical
issues regarding industrial operations are briefly reviewed. The properties are viewed from …

The main objective of this study is to determine the effect of thermal cracking on asphaltene
molecular structure. Hence, n-heptane insoluble fractions were precipitated and collected …

Asphaltenes are known to be interfacially active in many circumstances such as at toluene−
water interfaces. Furthermore, the term micelle has been used to describe the primary …

Many investigations have been carried out to provide a good understanding of the colloidal
state of asphaltenes in appropriate solvents such as toluene or natural medium. Despite …

Heavy and extra-heavy oils generally exhibit high viscosity, which is detrimental to their
production, transport, and refining. The oil and gas industry has thoroughly investigated the …

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 derived from Algerian oil wells were characterized by Raman spectrometry to
investigate their molecular structures in solid-state. The aromatic sheet diameter (La) was …