Methodology of calculation of construction and hydrodynamic parameters of a foam layer apparatus for mass-transfer processes

Moiseev, V.V.; Мanoilo, Eugenia; Ponomarova, Natalia; Repko, Kalif; Davydov, D. V.

doi:10.20998/2413-4295.2018.16.25

Cited by 6 publications

(6 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The error of calculations based on these equations did not exceed 15 %. When deriving the calculated criterion equations for ammonia absorption, the dependence of K s =f(H) represent it as a monomial [9,10]:…”

Section: Resultsmentioning

confidence: 99%

“…Hydrodynamic modes of motion of droplets and films in the gas-liquid layer of foam apparatuses differ sharply from traditional ones and significantly affect the efficiency of mass transfer processes. To calculate the mass transfer coefficient in the gas phase in an apparatus with a foam layer for the absorption of fluoride gases by various absorbers the following general equation was proposed [9]:…”

Section: No 5 (76) 2021 Sciencerise Issn 2313-8416mentioning

confidence: 99%

“…In which the constant A is determined experimentally for each gas and absorber system. The efficiency or degree of absorption is determined by the equation [9]:…”

Section: No 5 (76) 2021 Sciencerise Issn 2313-8416mentioning

confidence: 99%

See 2 more Smart Citations

Experimental research of mass transfer in a stabilized foam layer

Moiseev

Мanoilo

Khukhryanskiy

et al. 2021

Self Cite

View full text Add to dashboard Cite

The object of research: mass transfer processes on a combined contact element in a column apparatus. Investigated problem: determination of the regularities of process parameters in the processing of gas-liquid systems in a foam layer, as well as to interpret the obtained experimental data. The problem of processing industrial gas flows is solved by conducting the process in an intensive mode. The main scientific results: as a result of the study, the regularities of ammonia absorption were revealed depending on the main parameters of the experiment: gas velocity in the column cross-section, ammonia concentration, free cross-section of the combined contact element, and liquid loads. The process of mass transfer in the gas phase is significantly influenced by hydrodynamic parameters – the gas velocity in the apparatus and the specific load on the liquid, which indirectly affect the height of the liquid layer on the plate and the gas content of the layer. The area of practical use of the research results: sorption processes for processing gases and liquids in technological processes, absorption of harmful substances in the treatment of gas emissions. Innovative technological product: new block poppet-nozzle contact device that operates in a stabilized hydrodynamic mode; new ball-shaped weighted nozzle for three-phase foam layer. Scope of application the innovative technological product: technological processes in the treatment of gas emissions or technological gases.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: No 5 (76) 2021 Sciencerise Issn 2313-8416mentioning

confidence: 99%

See 1 more Smart Citation

Experimental research of mass transfer in a stabilized foam layer

Moiseev

Мanoilo

Khukhryanskiy

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…An analysis of a number of studies [1][2] shows that the promising direction of the intensification of the mass transfer process is the development of apparatuses with a three-phase fluidized bed of irrigated nozzle of complex forms with mesh materials. For gas cleaning systems from gaseous components, it is necessary to provide small loads on the liquid while maintaining a high degree of purification.…”

Section: Resultsmentioning

confidence: 99%

Operational, constructive and hydrodynamic parameters of foam devices

Моисеев¹,

Мanoilo²,

Ponomareva³

et al. 2019

Chemical Technology and Engineering. Proceedings.2019.№1

View full text Add to dashboard Cite

Industrial implementation of the stabilization method of the gas-liquid layer can significantly expand the field of foam applications and opens new opportunities for intensifying technological processes with the simultaneous creation of low-waste technologies. The basic parameters influencing the hydrodynamics of foam devices are determined, the basic constructions and operating modes of foam devices are considered. The connection of hydrodynamic parameters is revealed. The hydrodynamics of foam layer is considered.

show abstract

“…However, such plates have low efficiency because they work at large values of splashing. In order to reduce the impact of splashing on the efficiency of the plate, in addition to the weighted nozzle, separators of a special design are placed in the separation space between the failed plates, which work as stabilizers of the three-phase foam layer when the apparatus is operating in the advanced bubbling mode [1].…”

Section: особливості масообміну в апаратах з рухомою насадкою в трифа...mentioning

confidence: 99%

Masstransfer Features in the Apparatuses With a Moving Nozzle in a Three-Phase Foam Layer

Manoilo,

Repko

et al. 2024

CCTE

View full text Add to dashboard Cite

The improvement of heat and mass exchange equipment for sorption processes in the countercurrent contact of gas and liquid in combined block elements with a weighted spherical nozzle, as well as a more in-depth study of this process, is an urgent task of chemical technology. A fundamentally new type of ball-shaped three-dimensional mesh fluidized nozzle was developed and researched, the bodies of which are made of polymer layers with holes, and a freely coiled metal or polymer mesh is located inside. The nozzle has a high specific surface area, developed free volume and low bulk density. The study of mass transfer in the liquid and gas phases was carried out and the corresponding calculation equations were obtained. Dependencies for the calculation of the mass transfer coefficients and the efficiency of the combined block element on the mode and design parameters are established. The results of calculations based on the obtained dependencies show a sufficient correlation with the experimental data. The proposed model of the desorption process of carbon dioxide from water, which allows predicting the values of the efficiency indicators of the decarbonization process. It was established that the use of a combined block element with a ball-shaped nozzle allows to increase the mass transfer coefficients compared to the failure plate. The industrial implementation of absorption processes in the foam layer and the use of the gas-liquid layer stabilization method significantly expands the scope of application of foam apparatuses and opens up new opportunities for intensifying technological processes. Previously expressed assumption about the perspective of using mesh materials for the manufacture of nozzle bodies was confirmed by experiments, but the peculiarity of the operation of devices with similar nozzles should be emphasized.

show abstract

Methodology of calculation of construction and hydrodynamic parameters of a foam layer apparatus for mass-transfer processes

Cited by 6 publications

References 2 publications

Experimental research of mass transfer in a stabilized foam layer

Experimental research of mass transfer in a stabilized foam layer

Operational, constructive and hydrodynamic parameters of foam devices

Masstransfer Features in the Apparatuses With a Moving Nozzle in a Three-Phase Foam Layer

Contact Info

Product

Resources

About