Neutralization of acidic condensate obtained after combustion of natural gas using the hydrodynamic cavitation method. Features and efficiency of the process

• Autorzy: Nedbailo Anna , Ivanitsky Georgiy , Tselen Bogdan , Obodovych Oleksandr , Radchenko Nataliya , Gozhenko Liubov

Identyfikatory

DOI

10.53412/jntes-2024-1-2

• Języki publikacji: EN

Abstrakty

EN

This paper examines the question of the efficiency of neutralization of acidic liquid media by the method of hydrodynamic cavitation. This method was proposed for the neutralization of acidic condensate obtained as a result of the combustion of natural gas at thermal power plants and allows to significantly reduce the acidity of the solution without adding chemical reagents with moderate energy consumption due to the removal of dissolved gases. If we consider acidic condensate, then it contains up to 70 mg/l of CO₂, when the solubility of this gas at normal temperature in water reaches 0.47 mg/l. The majority of this gas is present in the form of bubbles with a radius of less than 5 μm. Their removal leads to a change in the balance of carbonic acid in the system, which affects the acidity of the solution. To evaluate the effectiveness of removing soluble gases from a liquid by the method of hydrodynamic cavitation, studies of the effectiveness of degassing of a model substance (CO₂ solution in distilled water) were conducted. The rotor-pulsation apparatus was chosen as the cavitation device in the installation. As a result of theoretical studies, the minimum size of the CO₂ bubble was determined, that can be removed from the liquid with the applied processing parameters, and the total volume of carbon dioxide removed during processing and the dynamics of changes in the volume of gas during storage over time were determined.

Słowa kluczowe

EN

cavitation; acidic condensate; neutralization

• Wydawca: Kielce University of Technology
• Czasopismo: Journal of New Technologies in Environmental Science
• Rocznik: 2024
• Tom: Vol. 8, nr 1
• Strony: 12--17
• Opis fizyczny: Bibliogr. 6 poz., rys., tab., wykr.

Twórcy

autor

Nedbailo Anna

• Institute of Engineering Thermophysics of NAS Ukraine, 2a Marii Kapnist Str., Kyiv, 03057, Ukraine

autor

Ivanitsky Georgiy

• Institute of Engineering Thermophysics of NAS Ukraine, 2a Marii Kapnist Str., Kyiv, 03057, Ukraine

autor

Tselen Bogdan

• Institute of Engineering Thermophysics of NAS Ukraine, 2a Marii Kapnist Str., Kyiv, 03057, Ukraine

autor

Obodovych Oleksandr

• Institute of Engineering Thermophysics of NAS Ukraine, 2a Marii Kapnist Str., Kyiv, 03057, Ukraine

autor

Radchenko Nataliya

• Institute of Engineering Thermophysics of NAS Ukraine, 2a Marii Kapnist Str., Kyiv, 03057, Ukraine

autor

Gozhenko Liubov

• Institute of Engineering Thermophysics of NAS Ukraine, 2a Marii Kapnist Str., Kyiv, 03057, Ukraine

Bibliografia

• [1] Gogate P.R.: Hydrodynamic Cavitation for Food and Water Processing. Food Bioprocess Technol. 2011, 4, 996-1011. DOI: https://doi.org/10.1007/s11947-010-0418-1.
• [2] Eskin D.G.: Ultrasonic degassing of liquids. In Power Ultrasonics; Juan A. Gallego-Juárez and Karl F. Graff, Eds.; Woodhead Publishing, 2015; pp. 611-631. DOI: https://doi.org/10.1016/C2013-0-16435-5.
• [3] Dolinskiy А.А., Ivanitskiy G.K.: Heat and mass transfer and hydrodynamics in vapor-liquid dispersed media. Kiev: Naukova dumka, 2008, pp. 381.
• [4] Brennen Ch.E.: Cavitation and Bubble Dynamics. N.-Y., Oxford University Press, 294, 1995. DOI: http://dx.doi.org/10.1017/CBO9781107338760.
• [5] Tselen B., Ivanitsky G., Obodovych O., Radchenko N., Nedbailo A., Gozhenko L.: Discrete-Pulsed Energy Input Based Method for Neutralisation of the Acidic Condensate. Rocznik Ochrona Środowiska 2023, Vol. 25, pp. 215-221. DOI: https://doi.org/10.54740/ros.2023.021.
• [6] Nedbailo A.Ye., Ivanitsky G.K., Tselen B.Ya., Obodovych O.M., Radchenko N.L.: Evaluation of the efficiency of liquid degassing technology based on the principle of hydrodynamic cavitation. Acta Periodica Technologica 2023 Issue 54, pp. 237-244. DOI: https://doi.org/10.2298/APT2354237N.