Modeling of Column Apparatus Processes

Boyadjiev, Christo; Doichinova, Maria; Boyadjiev, Boyan; Popova-Krumova, Petya

doi:10.1007/978-3-319-28259-6

Cited by 13 publications

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“…The solution of this problem is related with the creation of new type of convectiondiffusion and average-concentration models. 13 The convection-diffusion models permit the qualitative analysis of the processes only, because the velocity distribution in the column is unknown. On this base is possible to be obtained the role of the different physical effect in the process and to reject those processes, whose relative influence is less than 1%, i.e.…”

Section: Modeling Of Industrial Mass Transfer Processes In Column Appmentioning

confidence: 99%

A new approach to modeling and simulation of mass transfer processes in industrial column apparatuses

Boyadjiev¹

2018

FMRIJ

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In the paper is presented a theoretical analysis of the role of the reaction kinetics in chemical engineering for the solution of the main problems in the chemical industry (biotechnology, heat energy), i.e. the optimal design of new devices and the optimal control of active processes. The thermodynamic and hydrodynamic approximations for the modeling of the industrial process rates are presented and analyzed. The linear and non-linear theories are examined. A new approach to modeling and simulating of mass transfer processes in industrial column apparatuses is proposed. This approach is used for the modeling of chemical, absorption, adsorption and catalytic processes in industrial column apparatuses.

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Section: Modeling Of Industrial Mass Transfer Processes In Column Appmentioning

confidence: 99%

A new approach to modeling and simulation of mass transfer processes in industrial column apparatuses

Boyadjiev¹

2018

FMRIJ

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“…The modeling of a non-stationary (as a result of the adsorbent saturation) absorption-adsorption process on the plate number ( ) 1, , = n n N , for gas purification from SO 2 [14], uses a combination of the physical absorption and chemical adsorption models [1]: 1 2 0 1 1 11 11 2 2 12 3 3 13 3 3 23 23 0 , , , ,…”

Section: Absorption-adsorption Process Modelingmentioning

confidence: 99%

An Absorption-Adsorption Apparatus for Gases Purification from SO2 in Power Plants

Boyadjiev¹,

Boyadjiev²

2017

OALib

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Different companies propose methods and apparatuses for waste gases purification from SО 2 using two-phase absorbent (CaCO 3 suspension).The basic problem of the carbonate absorbents is that its chemical reaction with SO 2 leads to CO 2 emission, which leads to similar ecological problems. The use of synthetic anionites as adsorbents for gas purification from SO 2 provides possibilities for adsorbent regeneration. In a proposed method, the waste gas purification is realized in two steps-physical absorption of SO 2 with water in a counter-current column and chemical adsorption of HSO− from the water solution by synthetic anionite particles. The adsorbent regeneration is made with NH 4 OH solution. The obtained (NH 4 ) 2 SO 3 (NH 4 HSO 3 ) is used (after reaction with HNO 3 ) for production of concentrated SO 2 (gas) and NH 4 NO 3 (solution). The proposed method permits to be used the absorption columns, where are used the CaCO 3 suspensions. In this paper, the efficiency of the waste gases purification from SО 2 is increased in an absorption-adsorption apparatus, where the absorption is realized in co-current flows and the adsorption takes place in the flexible adsorbent. For this is proposed a new absorption-adsorption column apparatus with bubbling plates. A mathematical model of the absorption-adsorption process is presented, too.

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“…However, because of the complexity of the interaction of vapor and liquid in the channels of packing, which have a very complex geometrical structure, the processes of heat and mass transfer do not allow rigorous mathematical description so far. Experimental data on the heat and mass transfer and pressure drop in columns with structured packings are very scarcy [1][2][3][4][5][6][7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Heat and Mass Transfer Characteristics of Distillation Column with Structured Packings with Different Geometrical Parameters

Gogonin

2021

J. Engin. Thermophys.

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The heights of transfer units, the heights of equivalent theoretical trays, and the pressure drops have been measured experimentally for structured packings 1, 2, and 3 with different geometrical parameters, all other things being equal. The experiments were carried out on a distillation column, a mixture of R114/R21 freons used as the working fluid. In terms of physical properties, freons are very close to cryogenic liquids (except for the density), which can significantly simplify the research task and enable getting necessary information. The mentioned packings differ significantly in their geometrical characteristics and, therefore, each of them can be optimal for mixtures with different physical properties. The objective of the research was to get the heat and mass transfer characteristics and pressure drops for different types of packings.

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Modeling of Column Apparatus Processes

Cited by 13 publications

References 0 publications

A new approach to modeling and simulation of mass transfer processes in industrial column apparatuses

A new approach to modeling and simulation of mass transfer processes in industrial column apparatuses

An Absorption-Adsorption Apparatus for Gases Purification from SO2 in Power Plants

Analysis of Heat and Mass Transfer Characteristics of Distillation Column with Structured Packings with Different Geometrical Parameters

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