Perspectives of Hydrogen Generation in Cavitation–Jet Hydrodynamic Reactor
Mamytbekov G.K. Danko I.V. Beksultanov Z.I. Nurtazin Y.R. Rakhimbayev A.
October 2024Multidisciplinary Digital Publishing Institute (MDPI)
Applied Sciences (Switzerland)
2024#14Issue 20
The article investigates the potential for producing hydrogen by combining the methods of water splitting under cavitation and the chemical activation of aluminum in a high-speed cavitation–jet flow generated by a specialized hydrodynamic reactor. The process of cavitation and water spraying causes the liquid heating itself until it reaches saturated vapor pressure, resulting in the creation of vapor–gaseous products from the splitting of water molecules. The producing of vapor–gaseous products can be explained through the theory of non-equilibrium low-temperature plasma formation within a high-speed cavitation–jet flow of fluid. Special focus is also given to the interactions occurring at the interface boundary phase of aluminum and liquid under cavitation condition. The primary solid products formed on aluminum surfaces are bayerite, copper oxides (I and II), iron carbide, and a compound of magnesium oxides and aluminum hydroxide. A high hydrogen yield of 60% was achieved when using a 0.1% sodium hydroxide solution as a working liquid compared to demineralized water. Moreover, hydrogen methane was also detected in the volume of the vapor–gas mixture, which could be utilized to address the challenges of decarbonization and the recycling of aluminum-containing solid industrial and domestic waste. This work provides a contribution to the study of the mechanism of hydrogen generation by cavitation–jet processing of water and aqueous alkali solutions, in which conditions are created for double cavitation in the cavitation–jet chamber of the hydrodynamic reactor.
cavitation , cavitation–jet chamber , cavitation–jet reactor , hydrogen generation , Laval nozzle , plasma formation , Venturi tube
Text of the article Перейти на текст статьи
Institute of Nuclear Physics, Almaty, 050032, Kazakhstan
Department of Power Engineering, Satbayev University, Almaty, 050013, Kazakhstan
National School of Physics and Mathematics, Astana, 050000, Kazakhstan
Institute of Nuclear Physics
Department of Power Engineering
National School of Physics and Mathematics
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026