A review on Raman finger prints of doping and strain effect in TMDCs

Hydrogen donating capacity of water in catalytic and non-catalytic aquathermolysis of extra-heavy oil: Deuterium tracing study

The aquathermolysis process is widely considered to be one of the most promising approaches of in-situ upgrading of heavy oil. It is well known that introduction of metal ions speeds up the aquathermolysis reactions. There are several types of catalysts such as dispersed (heterogeneous), water-soluble and oil soluble catalysts, among which oil-soluble catalysts are attracting considerable interest in terms of efficiency and industrial scale implementation. However, the rock minerals of reservoir rocks behave like catalysts; their influence is small in contrast to the introduced metal ions. It is believed that catalytic aquathermolysis process initiates with the destruction of C-S bonds, which are very heat-sensitive and behave like a trigger for the following reactions such as ring opening, hydrogenation, reforming, water–gas shift and desulfurization reactions. Hence, the asphaltenes are hydrocracked and the viscosity of heavy oil is reduced significantly. Application of different hydrogen donors in combination with catalysts (catalytic complexes) provides a synergetic effect on viscosity reduction. The use of catalytic complexes in pilot and field tests showed the heavy oil viscosity reduction, increase in the content of light hydrocarbons and decrease in heavy fractions, as well as sulfur content. Hence, the catalytic aquathermolysis process as a distinct process can be applied as a successful method to enhance oil recovery. The objective of this study is to review all previously published lab scale and pilot experimental data, various reaction schemes and field observations on the in-situ catalytic aquathermolysis process.

In-Situ Heavy Oil Aquathermolysis in the Presence of Nanodispersed Catalysts Based on Transition Metals

Fabrication of novel rational Ti-Sn doped Cu-ferrite nanoparticles for robust photocatalysis reaction, magnetic resonance imaging, and chemo-magneto-photo-thermal therapy

Low-field NMR-relaxometry as fast and simple technique for in-situ determination of SARA-composition of crude oils

In-situ catalytic upgrading of heavy oil using oil-soluble transition metal-based catalysts

Improving heavy oil oxidation performance by oil-dispersed CoFe2O4 nanoparticles in In-situ combustion process for enhanced oil recovery

Using the oil-soluble copper-based catalysts with different organic ligands for in-situ catalytic upgrading of heavy oil

Oil-Dispersed α-Fe2O3 Nanoparticles as a Catalyst for Improving Heavy Oil Oxidation

FeBO3 and Fe3BO6 are antiferromagnets with TN ≈ 348 K and 508 K respectively. This work presents the results of the study of the thermal expansion and phase transitions occurring in these borates by hightemperature X-ray powder diffraction and Mossbauer spectroscopy in a wide temperature range. Unit cell parameters are refined by the Rietveld method at different temperatures. For both compounds an abrupt change in thermal expansion coefficients α is revealed near the magnetic antiferromagnet–paramagnet phase transition.

Thermal Expansion of FeBO3 and Fe3BO6 Antiferromagnets Near the Neel Temperature

A. L. Zinnatullin

Papers

In-situ catalytic upgrading of heavy oil using oil-soluble transition metal-based catalysts

Improving heavy oil oxidation performance by oil-dispersed CoFe2O4 nanoparticles in In-situ combustion process for enhanced oil recovery

Using the oil-soluble copper-based catalysts with different organic ligands for in-situ catalytic upgrading of heavy oil

Oil-Dispersed α-Fe2O3 Nanoparticles as a Catalyst for Improving Heavy Oil Oxidation

Thermal Expansion of FeBO3 and Fe3BO6 Antiferromagnets Near the Neel Temperature