Wax deposition and prediction in petroleum pipelines
F Alnaimat, M Ziauddin - Journal of Petroleum Science and Engineering, 2020 - Elsevier
Wax prediction is crucial because accumulation of wax in the crude oil pipelines is a wide
concern in the petroleum industry. In the subsea pipelines, the cold temperature of the …
concern in the petroleum industry. In the subsea pipelines, the cold temperature of the …
Recent advances in the applications of vibrational spectroscopic imaging and mapping to pharmaceutical formulations
AV Ewing, SG Kazarian - Spectrochimica Acta Part A: Molecular and …, 2018 - Elsevier
Vibrational spectroscopic imaging and mapping approaches have continued in their
development and applications for the analysis of pharmaceutical formulations. Obtaining …
development and applications for the analysis of pharmaceutical formulations. Obtaining …
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 …
EPR study of spectra transformations of the intrinsic vanadyl-porphyrin complexes in heavy crude oils with temperature to probe the asphaltenes' aggregation
MR Gafurov, MA Volodin, AA Rodionov… - Journal of Petroleum …, 2018 - Elsevier
Temperature dependencies of electron paramagnetic resonance spectra of intrinsic
paramagnetic vanadyl complexes and dynamical viscosity for two heavy crude oils and …
paramagnetic vanadyl complexes and dynamical viscosity for two heavy crude oils and …
Proton–radical interaction in crude oil—A combined NMR and EPR Study
We present a detailed study of electron/nuclear interaction in a specific crude oil by
continuous-wave and pulsed EPR, electron–nuclear double resonance (ENDOR) at W-band …
continuous-wave and pulsed EPR, electron–nuclear double resonance (ENDOR) at W-band …
From Components to Phase-Dependent Dynamics of Diffusivity in Wax Solutions Subjected to Fluid–Solid Phase Transition: Insights from Pulsed Field Gradient NMR
EV Morozov, PV Nizovtseva, ON Martyanov - Energy & Fuels, 2022 - ACS Publications
The evolution of solvent and solute diffusivity during fluid–solid phase transition was studied
in model wax in n-dodecane solutions in a wide concentration range. Studied systems were …
in model wax in n-dodecane solutions in a wide concentration range. Studied systems were …
Fine-Tuning Simulation of the ESR Spectrum─ Sensitive Tool to Identify the Local Environment of Asphaltenes In Situ
SN Trukhan, SS Yakushkin… - The Journal of Physical …, 2022 - ACS Publications
An original method to study the local environment of vanadyl-containing components of
heavy oils based on fine-tuning simulation of their electron spin resonance (ESR) spectra in …
heavy oils based on fine-tuning simulation of their electron spin resonance (ESR) spectra in …
Methods for studying petroleum porphyrins
NA Mironov, DV Milordov, GR Abilova… - Petroleum …, 2019 - Springer
The presented review considers the currently relevant methods for studying petroleum
porphyrins. For this purpose, the experimental approaches used during the investigation of …
porphyrins. For this purpose, the experimental approaches used during the investigation of …
Comparative study of resins and asphaltenes of heavy oils as sources for obtaining pure vanadyl porphyrins by the sulfocationite-based chromatographic method
NA Mironov, GR Abilova, YY Borisova… - Energy & …, 2018 - ACS Publications
The resins and asphaltenes of three heavy oils differing in origin (Permian and
Carboniferous) and vanadium content (0.025–0.165 wt%) have been studied as sources for …
Carboniferous) and vanadium content (0.025–0.165 wt%) have been studied as sources for …
Spectroscopic imaging of deposition of asphaltenes from crude oil under flow
We demonstrate, for the first time, the application of FTIR spectroscopic imaging approach in
situ to monitor the precipitation process of oil asphaltenes, induced by n-heptane under flow …
situ to monitor the precipitation process of oil asphaltenes, induced by n-heptane under flow …