A5034294648- Innovative Microfluidic and Catalytic Techniques Innovation
- Fluid Dynamics and Mixing
- Heat Transfer and Boiling Studies
- Fluid Dynamics and Heat Transfer
- Electrohydrodynamics and Fluid Dynamics
- Catalytic Processes in Materials Science
- Heat Transfer and Optimization
- Fluid Dynamics and Thin Films
- Microfluidic and Capillary Electrophoresis Applications
- Field-Flow Fractionation Techniques
- Lattice Boltzmann Simulation Studies
- Multiferroics and related materials
- Coal Combustion and Slurry Processing
- Minerals Flotation and Separation Techniques
- Heat Transfer Mechanisms
- Mining and Gasification Technologies
- Magnetic Properties and Synthesis of Ferrites
- Cyclone Separators and Fluid Dynamics
- Advanced Photocatalysis Techniques
- TiO2 Photocatalysis and Solar Cells
- Environmental and Industrial Safety
- Catalysis and Oxidation Reactions
- Methane Hydrates and Related Phenomena
- Ferroelectric and Piezoelectric Materials
- Innovations in Concrete and Construction Materials
St. Petersburg State Technological Institute
2016-2025
Ioffe Institute
2021-2024
Institute of Chemistry of Silicates named after I.V. Grebenshchikov
2020-2024
Physicotechnical Institute
2023
Russian Academy of Sciences
2023
Physico-Technical Institute
2021
Karlsruhe Institute of Technology
2016-2017
Technical University of Darmstadt
2016
Hamburg University of Technology
2016
M.Auezov South Kazakhstan State University
2016
Steam reforming of methanol is a promising approach to achieving hydrogen storage, transportation, and in situ supply. However, this technology restricted by its high CO selectivity catalyst deactivation. In study, CuCr2O4-based catalytic oxygen carriers are tailored for lattice participating low-temperature reforming. We found that the activation originated from Cu–O–Cr structure intensification highly activated induction. Specifically, can be at temperatures as low 160 °C, on one hand,...
Plasma-assisted dry reforming of methane (DRM) is considered as a potential way to convert natural gas into fuels and chemicals under near ambient temperature pressure; particularly for distributed processes based on renewable energy. Both catalytic photocatalytic technologies have been applied DRM investigate the CH4 conversion energy efficiency process. For conventional catalysis; metaldoped Ni-based catalysts are proposed leading vector further development. However; coke deposition leads...
One of the promising methods for process intensification micromixing, co-precipitation, and crystallization in continuous reactors is use vigorous vortices. A combination high intensity kinetic energy input with small volume micromixing allows to concentrate dissipation rate up 104 W/kg more. As embodiment such an idea, four new types microreactors intensively swirled flows were created studied as a tool co-precipitation crystallization. correlation between residence time segregation index...
The vertically upward Taylor flow in a small square channel (side length 2 mm) is one of the guiding measures within priority program “Transport Processes at Fluidic Interfaces” (SPP 1506) German Research Foundation (DFG). This paper presents results coordinated experiments and three-dimensional numerical simulations (with three different academic computer codes) for typical local parameters (bubble shape, thickness liquid film, velocity profiles) cutting planes (lateral diagonal) specific...
Abstract Hydrodynamics and mass transfer of both gas‐liquid liquid‐liquid Taylor flow simulation in microchannels are reviewed. Theoretical approaches for description hydrodynamic parameters characteristics corroborated by comparison with available experimental results. Similarities peculiarities flows versus capillaries discussed. Tools intensification analyzed optimal process conditions evaluated.
New theoretical approach to model Gas-Liquid and Gas-Liquid-Solid mass transfer for two-phase Taylor flows in milli microchannels is proposed. The main idea of the proposed mathematical take into account not only diffusion but convection inside liquid slugs caused by circulation within vortices convective transport from film surrounding bubble slug induced movement. For that aim a three-layer elaborated earlier Abiev (CEJ, 2013) used decompose onto three interacting layers. Diffusion around...
The influence of the hydrodynamics (flow rates Q, specific energy dissipation rate ε) on micromixing in a two-step microreactor with intensively swirled flows (MRISF-2) was studied experimentally. Three methods liquid input into reactor were compared: (i) through upper tangential and axial nozzles (TU1, Ax); (ii) two TU2); (iii) lower TL2). Segregation index Xs used as measure level determined by means iodide iodate reaction method. Bernoulli equation for device inputs one output derived to...
A theoretical analysis of the influence distribution local specific energy dissipation rate on interfacial area, surface and volumetric mass transfer coefficients in apparatuses with heterophase processes a liquid continuous phase, as well quality mixing homophase reactions is performed. It shown that average value over volume device not full-fledged criterion for assessing useful effect since it does take into account, one hand, level active zones and, other features flow structure...
Nanocrystals of gadolinium orthoferrite (GdFeO3) with morphology close to isometric and superparamagnetic behavior were successfully synthesized using direct, reverse microreactor co-precipitation iron(III) hydroxides their subsequent heat treatment in the air. The obtained samples investigated by PXRD, FTIR, low-temperature nitrogen adsorption-desorption measurements, HRTEM, SAED, DRS vibration magnetometry. According X-ray diffraction patterns, GdFeO3 nanocrystals direct have smallest...