Multiscale nuclear magnetic relaxation dispersion of complex liquids in bulk and confinement
JP Korb - Progress in Nuclear Magnetic Resonance …, 2018 - Elsevier
The nuclear magnetic relaxation dispersion (NMRD) technique consists of measurement of
the magnetic-field dependence of the longitudinal nuclear-spin-lattice relaxation rate 1/T 1 …
the magnetic-field dependence of the longitudinal nuclear-spin-lattice relaxation rate 1/T 1 …
Fractionation and characterization of petroleum asphaltene: focus on metalopetroleomics
F Zheng, Q Shi, GS Vallverdu, P Giusti, B Bouyssiere - Processes, 2020 - mdpi.com
Asphaltenes, as the heaviest and most polar fraction of petroleum, have been characterized
by various analytical techniques. A variety of fractionation methods have been carried out to …
by various analytical techniques. A variety of fractionation methods have been carried out to …
Effect of solvent on the adsorption behavior of asphaltene on silica surface: A molecular dynamic simulation study
In recent years, the hybrid thermal-solvent process has been widely applied to improve the
recovery performance of steam injection processes in heavy oil reservoirs. In this paper, the …
recovery performance of steam injection processes in heavy oil reservoirs. In this paper, the …
Advances and challenges in the molecular characterization of petroporphyrins
AM McKenna, ML Chacón-Patiño… - Energy & …, 2021 - ACS Publications
Petroporphyrins, geoporphyrins, or metalloporphyrins are the original petroleum biomarkers,
identified by Alfred Treibs more than a century ago and the first molecular evidence for the …
identified by Alfred Treibs more than a century ago and the first molecular evidence for the …
Elucidating the geometric substitution of petroporphyrins by spectroscopic analysis and atomic force microscopy molecular imaging
Determination of the molecular structures of petroporphyrins has been crucial to understand
the diagenetic pathways and maturation of petroleum. However, these studies have been …
the diagenetic pathways and maturation of petroleum. However, these studies have been …
Asphaltene aggregation studied by molecular dynamics simulations: role of the molecular architecture and solvents on the supramolecular or colloidal behavior
H Santos Silva, A Alfarra, G Vallverdu, D Bégué… - Petroleum Science, 2019 - Springer
Asphaltene aggregation is a subject under vivid discussion: There are several parameters
one needs to determine before its behavior can be mastered and better target solutions can …
one needs to determine before its behavior can be mastered and better target solutions can …
Resin–Paraffin Aggregation Processes in Waxy Oil Revealed by Vanadyl Porphyrin Spin Probe
SN Trukhan, EV Morozov, ON Martyanov - Energy & Fuels, 2023 - ACS Publications
The work demonstrates the great potential of using a vanadyl porphyrin probe to study resin–
paraffin aggregation processes in oils. The dynamics and polarity of the local environment of …
paraffin aggregation processes in oils. The dynamics and polarity of the local environment of …
Oil spills characteristics, detection, and recovery methods: A systematic risk-based view
ACSV de Negreiros, ID Lins, CBS Maior… - Journal of Loss …, 2022 - Elsevier
Petroleum is still the most important energy source globally and essential to daily human
activities. Its exploration in deep waters and the logistics-related operations present the risk …
activities. Its exploration in deep waters and the logistics-related operations present the risk …
Molecular dynamics and proton hyperpolarization via synthetic and crude oil porphyrin complexes in solid and solution states
The use of vanadyl porphyrins either in synthetic compounds or naturally occurring in
asphaltenes is investigated as a source of proton hyperpolarization via dynamic nuclear …
asphaltenes is investigated as a source of proton hyperpolarization via dynamic nuclear …
Non-covalent π-stacking interactions between asphaltene and porphyrin in bitumen
In recent years, the dominant organizing role of non-covalent π-stacking interactions in the
association of asphaltenes and porphyrins was criticized and replaced with cooperative …
association of asphaltenes and porphyrins was criticized and replaced with cooperative …