Investigation of filter materials for gas cleaning from sulfuric acid

Tsareva, O. V.; Balyberdin, A. S.; Вахитов, М Р; Харьков, В В; Дубкова, Н З

doi:10.1088/1755-1315/421/7/072014

Cited by 12 publications

(3 citation statements)

References 9 publications

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“…In a number of industries, these particles are the final product; for example, in the production of some non-ferrous metals, soot, cement, and the capture of catalysts in oil refining. In other cases, it is essential to clean the gas from suspended particles, as, for example, in the air preparation in the production of sulfuric acid [1] or to achieve absolutely pure air in the special microelectronics production rooms (Clean Rooms [2]). The first step of particle separation from gas flow is usually performed using the air devices of inertial [3] or centrifugal types [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Effect of arc element diameter on fine particle collection efficiency of the separator

Vu Linh,

Abdullina,

Khamitova

et al. 2023

E3S Web Conf.

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Clean gas without suspended particles is an essential factor for many industries. The paper is concerned with the design of a separation device with rows of the arc elements, in which a wave-like flow pattern is observed. The separation of solid particles from the gas occurs due to inertial and centrifugal forces. A three-dimensional model of the device and its operating principles are presented. The aim of the work is to numerically study the effect of the size of the arc elements of the separation device on the efficiency of particle collection. In the course of the simulation, the diameter of the arc elements varied from 25 to 50 mm. The exit to the stationary solution was estimated by the pressure drop of the separation device. It was found that about 870 iterations were needed. Results have shown that the diameter of the arc elements, at which the maximum efficiency of collecting particles from gas-solid flow occurs, is 40 mm. The separation efficiency of the device with a diameter of the arc elements of 25, 40, and 50 mm averages 81.1, 90.1, and 86.5%, respectively, at an inlet gas velocity of 0.5 to 5.0 m/s. The pressure loss in the separation device ranged from 12.6 to 1924.1 Pa at a gas velocity of 0.5 to 5.0 m/s. It is concluded that it is important to use a separation device to collect fine particles at a dusty gas velocity of less than 3 m/s because its pressure drop is significantly lower compared with other air separators.

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Section: Introductionmentioning

confidence: 99%

Effect of arc element diameter on fine particle collection efficiency of the separator

Vu Linh,

Abdullina,

Khamitova

et al. 2023

E3S Web Conf.

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“…Furthermore, the small size of particles excludes or limits traditional separation methods -gravitational, inertial, and electrostatic [5,6]. Therefore, developing high-efficiency devices for cleaning gas emissions from particulate matter is an urgent task [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Pressure Drop and Particle Collection Efficiency of Multivortex Separator

Мадышев

Харьков

Bolotnov

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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The purification of gas emissions from dispersed particles is presently one of the mandatory measures to protect the air basin for most industrial enterprises. The authors developed a device for gas cleaning with separation elements in the form of a profile with rectangular vertical slots. Such a design creates numerous small vortices, which leads to an increase in collection efficiency. The paper aims to numerically determine the effect of the design and operating conditions on the particle deposition efficiency and the pressure drop of the multivortex separator. The height of the rectangular slots varied from 55 to 94 mm. In addition, the size of the dispersed particles changed from 1 to 15 μm in diameter. The results show that a decrease of resistance coefficient is observed with an increase in the height of the rectangular slot in the separation element. The results indicate that separation elements should be designed with a small height of rectangular slots and located in the lower part to collect fine particles in the multivortex separator efficiently.

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“…Therefore, the fan works at maximum power with high hydraulic resistance, reducing its residual life and leading to periodic breakdowns. The key system for decreasing pressure loss of the fumed silica production line is the product's collection system after the plasmatron [5,6]. Therefore, an essential task in applying plasma technologies for industrial purposes is to reduce the hydraulic resistance of the separation systems.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of collection efficiency in separator with inclined double-T elements

Зинуров

Харьков

Salakhova

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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The article considers the problem of improving efficiency for capturing solid particles in the production of silicon dioxide. The authors propose a separator with inclined double-T elements. The operating principle of the device is described. It is shown that particles are captured from gas due to centrifugal forces when they pass through elements. The main parameters affecting the collection efficiency of the separator are the inlet gas velocity, which determines the centrifugal force of the swirls, the particle density, and the diameter of the particles determining the inertial knocking out of the structured flow. Numerical simulations have shown the device’s efficiency with inclined double-T elements in collecting fumed silica solids of 1 to 15 μm in size, a density of 2000 to 3000 kg/m3, and the inlet velocity of 3 to 10 m/s changes from 20.8 to 100%. Pressure loss of separator with inclined double-T elements is 168 to 1880 Pa at inlet gas velocity from 3 to 10 m/s.

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Investigation of filter materials for gas cleaning from sulfuric acid

Cited by 12 publications

References 9 publications

Effect of arc element diameter on fine particle collection efficiency of the separator

Effect of arc element diameter on fine particle collection efficiency of the separator

Pressure Drop and Particle Collection Efficiency of Multivortex Separator

Numerical simulation of collection efficiency in separator with inclined double-T elements

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