Results of Mathematical Modeling of Evaporation Process the Drops of Sulfuric Acid in the Gas Flow

• Autorzy: Khimka Uliana , Helesh Andriy , Bukliv Roksoliana , Śniadkowski Mariusz

Identyfikatory

DOI

10.12913/22998624/170995

• Języki publikacji: EN

Abstrakty

EN

The processes of concentration of dilute solutions of sulfuric acid (H2SO4), in particular hydrolytic sulfuric acid for the production of pigment titanium (IV) oxide, were analyzed. It is proposed to concentrate solutions of Н2SO4 by evaporation in direct contact of acid droplets with hot industrial exhaust gases. The mathematical model of the evaporation of Н2SO4 drops in a hot gas stream, which used for the calculations, makes it possible to calculate the mass, temperature, velocity, and coordinates of the drop at any time with sufficient accuracy. However, the calculations are difficult, cumbersome and require multiple processing of large data sets. Therefore, the aim of the article was to approximate the calculated technological parameters of sulfuric acid droplet evaporation by obtaining simple mathematical dependencies. The mathematical dependences of the mass transfer coefficient and the distance traveled by a drop of Н2SO4 during evaporation on air temperature and drop diameter were obtained. It has been established that technologically expedient evaporation of Н2SO4 drops with a diameter of ≤ 0,5·10-3 m in traditional devices leads to significant droplet loss, increased corrosion of equipment, etc. So, in order to practically implement the technology of evaporation of HSA solutions with industrial exhaust gases, it is necessary to change the technological mode of operation of the evaporator and the design of the main device. It is proposed to use the obtained results to study the methods of intensification of the evaporation process, selecting a modern mass transfer apparatus, developing a technology for utilizing hydrolytic sulfuric acid and producing pigment titanium (IV) oxide.

Słowa kluczowe

EN

evaporation; hydrolytic sulfuric acid; exhaust gases; mathematical model

• Wydawca: Lublin University of Technology ; Polish Society of Ecological Engineering (PTIE), Branch of PTIE in Lublin
• Czasopismo: Advances in Science and Technology. Research Journal
• Rocznik: 2023
• Tom: Vol. 17, no 5
• Strony: 41--47
• Opis fizyczny: Bibliogr. 23 poz., fig.

Twórcy

autor

Khimka Uliana

• Department of Mathematics, Lublin University of Technology, ul. Nadbystrzycka 38A, 20-618 Lublin, Poland

autor

Helesh Andriy

• Department of Chemistry and Technology of Inorganic Substances, Lviv Polytechnic National University, Bandera Street 12, 79013 Lviv, Ukraine

autor

Bukliv Roksoliana

• Department of Chemistry and Technology of Inorganic Substances, Lviv Polytechnic National University, Bandera Street 12, 79013 Lviv, Ukraine

autor

Śniadkowski Mariusz

• Fundamentals of Technology Faculty, Lublin University of Technology, ul. Nadbystrzycka 36, 20-618 Lublin, Poland

• https://orcid.org/0000-0001-7561-4224

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).