Sunflower oil as renewable biomass source to develop highly effective oil-soluble catalysts for in-situ combustion of heavy oil

A Tajik, A Farhadian, MA Khelkhal… - Chemical Engineering …, 2023 - Elsevier
In-situ combustion has received much attention in the last few decades for enhanced heavy
oil recovery processes. Although a wide part of research efforts has only focused on the …

Rock Mineral Components' Effects on Heavy and Shale Oil Transformation during Aquathermolysis

AV Vakhin - Energies, 2022 - mdpi.com
One of the main topics that generate the interest of experts nowadays involves the
processes of organic matter chemical transformation during heavy and shale oil reservoirs' …

Iron oxide nanoparticles impact on improving reservoir rock minerals catalytic effect on heavy oil aquathermolysis

SA Sitnov, MA Khelkhal, II Mukhamatdinov… - Fuel, 2022 - Elsevier
The past decade has seen a renewed importance in developing heavy oil reserves due to
the rapid raise in energy resources' demand. The next decade is likely to witness a …

Thermal behavior of heavy oil catalytic pyrolysis and aquathermolysis

MA Khelkhal, SE Lapuk, AV Buzyurov, NE Ignashev… - Catalysts, 2022 - mdpi.com
There is still considerable controversy surrounding the mechanisms, thermodynamics, and
kinetics of heavy oil aquathermolysis and pyrolysis processes. The present paper aims to …

Changes in heavy oil saturates and aromatics in the presence of microwave radiation and iron-based nanoparticles

AV Vakhin, MA Khelkhal, II Mukhamatdinov… - Catalysts, 2022 - mdpi.com
Our knowledge of electromagnetic heating's effect on heavy oil upgrading is largely based
on very limited data. The aim of the present research was thus to study in detail the effect of …

Application of aromatic and industrial solvents for enhancing heavy oil recovery from the Ashalcha field

II Mukhamatdinov, ISS Salih, MA Khelkhal… - Energy & …, 2020 - ACS Publications
Nowadays, there is a significant increase in the share of unconventional oil reserves such as
heavy and extra-heavy oils as well as natural bitumen among the total balance of extracted …

Microwave radiation impact on heavy oil upgrading from carbonate deposits in the presence of nano-sized magnetite

AV Vakhin, MA Khelkhal, A Tajik, NE Ignashev… - Processes, 2021 - mdpi.com
The present paper reports experiments on microwave heating of a carbonate oil-containing
rock sample in the presence and absence of an iron-magnetite-based nanocatalyst. It has …

Catalytic aquathermolysis of Mackay River bitumen with different types of Mo-based catalysts

X Qu, G Zhou, Y Lu, S Li, L Zhang, J Wang, H Xu - Fuel, 2022 - Elsevier
In the present work, the catalytic aquathermolysis of Mackay River bitumen with 12 Mo-
based catalysts were investigated. Thereinto, 6 catalysts were commercially available …

The influences of compositional and structural evolutions of asphaltenes on coking behavior during slurry-bed hydrocracking

T Yang, W Deng, Y Zhu, S Zhang, Y Liu, X Zhang… - Fuel, 2022 - Elsevier
Asphaltenes is the most complex components in the slurry-bed hydrocracking reaction
system, and affects the coke formations significantly. In order to studied the influences of …

Laboratory experiments on the in situ upgrading of heavy crude oil using catalytic aquathermolysis by acidic ionic liquid

R D. Alharthy, RA El-Nagar, A Ghanem - Materials, 2022 - mdpi.com
Heavy and extra heavy oil exploitation has attracted attention in the last few years because
of the decline in the production of conventional crude oil. The high viscosity of heavy crude …