Egor Vasilchenko
Geochemical Scientist
Aramco Innovations LLC
Egor Vasilchenko is currently employed as a Geochemical scientist at the Aramco Innovations Research Center in Moscow. Prior to joining Aramco Innovations, he worked at “ACTUAL GEOLOGY”, a geological exploration company, where he conducted field studies utilizing atmo-geochemical methods for hydrocarbon detection. He holds a Bachelor's degree in Geochemistry from Lomonosov Moscow State University. His current research focuses on the development of a novel carbonate material through the sequestration and transformation of greenhouse gases. He also develops new innovative projects for geochemical exploration of ore minerals and detection of hydrocarbons.
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Modern oil and gas production faces the challenges of increasing efficiency and reducing environmental impact. Our purpose was to develop the enhanced CO2 sequestration via its mineralization into mining and industrial wastes in surface conditions. The objectives of the study were: 1) demonstrating the high potential of industrial wastes to sequester CO2, 2) identifying key factors enhancing carbonization intensity, and 3) developing the extraction of the strategic components from the CO2 mineralization products.
The investigation of CO2 mineralization by mining and industrial waste was carried out using the original experimental technique. The experiments simulate physical-chemical conditions on the surface in locations of waste storage, which is especially relevant for further scaling of the technology and its direct testing at industrial facilities. The technique allows monitoring in detail over time the intensity of the mineralization process and determining the degree of CO2 sequestration by the solid material. Among the factors regulating the efficiency of mineralization, the main ones are the granulometric composition of waste, temperature, humidity of the environment, and fluid composition.
The investigation demonstrated the critical role of the granulometric composition of waste, the composition and amount of solution, and temperature on the kinetics of the carbonatization reaction and the efficiency of the CO2 mineralization process into industrial waste. As a result, the impact of each physicochemical parameter on the rate and degree of mineralization was identified, and the most effective waste treatment conditions for obtaining maximum CO2 binding into carbonates were demonstrated. The first series of laboratory tests on the samples of metallurgical slags, as well as basic and ultrabasic rocks of the mining industry, were conducted at room temperature and atmospheric pressure. The results demonstrate the dynamics of CO2 uptake over 10 wt.% for the first month of treatment with the maximum uptake over 25 wt.%. The research allows to conclude that the proposed technique provides not only efficient CO2 sequestration into solid mineral phases but also suggests sustainable solutions for the management of the large groups of inorganic wastes, namely mine tailings, iron and steelmaking slags and cement wastes. The proposed technique is also an effective route for the disintegration of materials for the subsequent recovery of residual minerals.
The research demonstrated the huge potential of inorganic waste, accumulated annually by millions of tons in mining, industrial, and power facilities, for CO2 mineralization. New breakthrough approach to waste management in surface conditions has been developed and applied. In addition to high CO2 binding, the technique allows for cheaper disintegration of waste to recover residual minerals. Thus, we have been able to optimize solutions to the challenges of industries while ensuring the sustainable development conditions.
Co-author/s:
Audrey Kovalskii, Research Science Specialist, Aramco Innovations LLC - Aramco Research Center.
The investigation of CO2 mineralization by mining and industrial waste was carried out using the original experimental technique. The experiments simulate physical-chemical conditions on the surface in locations of waste storage, which is especially relevant for further scaling of the technology and its direct testing at industrial facilities. The technique allows monitoring in detail over time the intensity of the mineralization process and determining the degree of CO2 sequestration by the solid material. Among the factors regulating the efficiency of mineralization, the main ones are the granulometric composition of waste, temperature, humidity of the environment, and fluid composition.
The investigation demonstrated the critical role of the granulometric composition of waste, the composition and amount of solution, and temperature on the kinetics of the carbonatization reaction and the efficiency of the CO2 mineralization process into industrial waste. As a result, the impact of each physicochemical parameter on the rate and degree of mineralization was identified, and the most effective waste treatment conditions for obtaining maximum CO2 binding into carbonates were demonstrated. The first series of laboratory tests on the samples of metallurgical slags, as well as basic and ultrabasic rocks of the mining industry, were conducted at room temperature and atmospheric pressure. The results demonstrate the dynamics of CO2 uptake over 10 wt.% for the first month of treatment with the maximum uptake over 25 wt.%. The research allows to conclude that the proposed technique provides not only efficient CO2 sequestration into solid mineral phases but also suggests sustainable solutions for the management of the large groups of inorganic wastes, namely mine tailings, iron and steelmaking slags and cement wastes. The proposed technique is also an effective route for the disintegration of materials for the subsequent recovery of residual minerals.
The research demonstrated the huge potential of inorganic waste, accumulated annually by millions of tons in mining, industrial, and power facilities, for CO2 mineralization. New breakthrough approach to waste management in surface conditions has been developed and applied. In addition to high CO2 binding, the technique allows for cheaper disintegration of waste to recover residual minerals. Thus, we have been able to optimize solutions to the challenges of industries while ensuring the sustainable development conditions.
Co-author/s:
Audrey Kovalskii, Research Science Specialist, Aramco Innovations LLC - Aramco Research Center.
