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

Z Sadeghtabaghi, AR Rabbani… - Journal of Molecular …, 2021 - Elsevier
Asphaltenes with complicated molecular structures consist of many aromatic portions, alkyl
chains, and different functional groups. Various methods can determine their average …

Application of scattering and diffraction techniques for the morphological characterization of asphaltenes

J Jennings, DJ Growney, H Brice, OO Mykhaylyk… - Fuel, 2022 - Elsevier
Asphaltenes are an important class of complex carbon-rich molecules found in crude oil.
Their chemical structure varies depending on the geological source but generally comprises …

Chemical–structural properties of South African bituminous coals: Insights from wide angle XRD–carbon fraction analysis, ATR–FTIR, solid state 13C NMR, and …

GN Okolo, HWJP Neomagus, RC Everson, MJ Roberts… - Fuel, 2015 - Elsevier
The chemical–structural properties of four South African bituminous coals were investigated
using wide angle X-ray diffraction–carbon fraction analysis (WAXRD–CFA), attenuated total …

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

M Asemani, AR Rabbani - Journal of Petroleum Science and Engineering, 2020 - Elsevier
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. The Fourier …

Effect of asphaltene structure on association and aggregation using molecular dynamics

M Sedghi, L Goual, W Welch… - The Journal of Physical …, 2013 - ACS Publications
The aggregation of asphaltenes has been established for decades by numerous
experimental techniques; however, very few studies have been performed on the …

An investigation into the modification of microwave-assisted oxidation in the macromolecular structure of coal via XRD and Raman spectroscopy

C Xu, H Li, J Lu, Y Lu, S Shi, Q Ye, M Li, Z Wang - Fuel, 2023 - Elsevier
The macromolecular structure of coal governs the generation and expansion of
micro/mesopores, contributing significantly to the storage and transport of coalbed methane …

The molecular structure of Inner Mongolia lignite utilizing XRD, solid state 13C NMR, HRTEM and XPS techniques

J Wang, Y He, H Li, J Yu, W Xie, H Wei - Fuel, 2017 - Elsevier
The chemical-structural properties of Inner Mongolia lignite were investigated by utilizing X-
ray diffraction (XRD), high resolution transmission electron microscopy (HRTEM), X-ray …

[图书][B] Modeling of processes and reactors for upgrading of heavy petroleum

J Ancheyta - 2013 - books.google.com
This book provides an up-to-date treatment of all the important aspects of modeling of
reactors employed in the main processes for heavy petroleum upgrading. It explains …

In-depth characterization of light, medium and heavy oil asphaltenes as well as asphaltenes subfractions

M Salehzadeh, MM Husein, C Ghotbi, B Dabir… - Fuel, 2022 - Elsevier
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 …

Structure–reactivity relationships for petroleum asphaltenes

MR Gray, ML Chacon-Patino, RP Rodgers - Energy & Fuels, 2022 - ACS Publications
The role of archipelago asphaltene structure in the reactions of petroleum asphaltenes was
investigated by comparing yields of products from the conversion of archipelago-rich heavy …