Recent advances in asphaltene transformation in heavy oil hydroprocessing: Progress, challenges, and future perspectives

MT Nguyen, DLT Nguyen, C Xia, TB Nguyen… - Fuel Processing …, 2021 - Elsevier
The supply of conventional light petroleum is being depleted, leading to increasing
dependence on unconventional oil sources such as heavy oil. Heavy oil often contains a …

Hydrodemetallization of heavy oil: Recent progress, challenge, and future prospects

TH Nguyen, QA Nguyen, ANT Cao, T Ernest… - Journal of Petroleum …, 2022 - Elsevier
Heavy oil contains significant amounts of metals with vanadium and nickel being the most
common. These metals are one of the main reasons for the deactivation of catalyst …

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 …

[HTML][HTML] The structure of bitumen: Conceptual models and experimental evidences

M Porto, R Angelico, P Caputo, AA Abe, B Teltayev… - Materials, 2022 - mdpi.com
Bitumen, one of the by-products of petroleum industry processes, is the most common binder
used in road pavements and in the construction industry in general. It is a complex organic …

Analytics driving kinetics: advanced mass spectrometric characterization of petroleum products

A Bojkovic, FH Vermeire, M Kuzmanovic… - Energy & …, 2021 - ACS Publications
The current state-of-the-art analysis techniques for petroleum fractions has progressed
substantially during the past decade. This has helped to further improve the lumping …

UNIFAC residual marine fuels stability prediction from NMR and elemental analysis of SARA components

I Efimov, KI Smyshlyaeva, VG Povarov, ED Buzyreva… - Fuel, 2023 - Elsevier
This paper focuses on the development of theoretical approaches to predict the stability of
very low-sulfur residual marine fuel (VLSFO) and is based on molecular weight, CHNS …

Quartz sand proppant loaded with Ni and Mo for in-situ aquathermolysis of heavy oil

J Wang, X Tang, J Li, E Guo, W Guan, Y Jiang - Fuel, 2021 - Elsevier
The aquathermolysis is an emerging technology that can realize the in-situ upgrade and
viscosity reduction of heavy oil in the reservoir conditions. In this study, a heterogeneous …

Review of asphaltenes in an electric field

U Farooq, S Lædre, K Gawel - Energy & Fuels, 2021 - ACS Publications
Asphaltenes are regarded as troublesome components of crude oils as their precipitation
and deposition inside production wells and downstream infrastructure often result in a …

Determination of gross calorific value in crude oil by variable selection methods applied to 13C NMR spectroscopy

EH de Paulo, FD dos Santos, GS Folli, LP Santos… - Fuel, 2022 - Elsevier
Abstract Gross Calorific Value (GCV) is one of the properties to assess the quality and value
of fuel in the oil industry, but the standard method is laborious. Regression models built with …

Characterization of asphalt aging by Analytical techniques: A Review on progress and perspectives

NCL Madeira, V Lacerda Jr, W Romão - Energy & Fuels, 2022 - ACS Publications
This review describes the chemical composition of asphalt, which is relevant for the
development of materials with higher quality and durability. Asphalt aging can occur in the …