Development of a Catalyst for Flue Gas Purification from Carbon Monoxide of Multi-Chamber Furnaces for Baking Electrode Blanks

Ivanenko, Olena; Trypolskyi, A. I.; Gomelya, Mykola; Karvatskii, Аnton; Vahin, A. V.; Didenko, O. Z.; Konovalova, Viktoria; Strizhak, P. E.

doi:10.12911/22998993/128857

Cited by 6 publications

(19 citation statements)

References 15 publications

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“…As a result of the conducted researches 9 samples of catalysts on the basis of aerated concrete which differed in the chemical composition were developed. Subsequently, the mechanical characteristics of the modified aerated concrete were determined according to the method described in the work [Ivanenko et al, 2021] (Table 2).…”

Section: Resultsmentioning

confidence: 99%

“…Determination of mechanical characteristics and structural parameters of the samples was performed according to the method described in [Ivanenko et al, 2021].…”

Section: Obtaining Modified Aerated Concretementioning

confidence: 99%

“…The content of micropores was calculated by the formula: (6) The efficiency of the presented catalysts was determined in the temperature range 200-400 ºС by calculating the conversion of carbon monoxide due to the change of concentrations of this gas at the outlet and inlet to the reactor. The conversion of carbon monoxide was calculated by the formula: (7) where:…”

Section: Obtaining Modified Aerated Concretementioning

confidence: 99%

“…Modified by transition metal oxides, in particular MnO 2 , zeolite-clinoptilolite of the Sokyrnytsia deposit [Ivanenko et al, 2021] has proven to be an effective catalyst in the purification of flue gases containing carbon monoxide. When using oxide-manganese catalyst based on zeolite provides the degree of oxidation of CO at 400 °C at the level of 92.8%.…”

Section: Introductionmentioning

confidence: 99%

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Use of Metal Oxide-Modified Aerated Concrete for Cleaning Flue Gases from Carbon Monoxide

Nosachova¹,

Ivanenko²,

Shabliy³

et al. 2021

J. Ecol. Eng.

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The necessity of development of technical solutions that will allow to reduce carbon monoxide emissions of flue gases of industrial productions is substantiated. It is shown that the most rational design solution to the problem of carbon monoxide pollution during the firing of electrode blanks is the use of aerated concrete blocks with a catalyst, which can be quickly and conveniently located directly on the carbon material of the "green" electrodes pouring in the subfloor space of the firing furnaces. Modified by oxides of Mn 4+ , Fe 2+ , Fe 3+ , Cu 2+ , Cr 3+ -catalysts based on aerated concrete were obtained. It is shown that in an empty reactor in the temperature range 200-400 ºС the degree of conversion of carbon monoxide in the absence of a catalyst is zero. It is established that on the investigated catalysts based on aerated concrete 100% oxidation of carbon monoxide is achieved at a temperature of 390 ºC in the case of using a mixture of catalyst powders 30% CuO + 70% MnO 2 , 40% CuO + 60% MnO 2 , 50% Fe (Fe x Cr 1-x ) 2O 4 + 50% MnO 2 ; 50% Fe 3 O 4 + 50 % MnO 2 . It is determined that the addition of ferrite catalyst powder in aerated concrete in a mixture or without manganese dioxide does not critically affect the mechanical properties of the products.

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Section: Resultsmentioning

confidence: 99%

“…Determination of mechanical characteristics and structural parameters of the samples was performed according to the method described in [Ivanenko et al, 2021].…”

Section: Obtaining Modified Aerated Concretementioning

confidence: 99%

Section: Obtaining Modified Aerated Concretementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Use of Metal Oxide-Modified Aerated Concrete for Cleaning Flue Gases from Carbon Monoxide

Nosachova¹,

Ivanenko²,

Shabliy³

et al. 2021

J. Ecol. Eng.

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“…Сó÷àñíèé ñòàí ðîçâèòêó îб÷èñлюâàлüíèõ òеõ-íîлîг³é òà ìеòîä³â ìàòеìàòè÷íîгî ìîäелюâàííя ñêлàäíèõ ñèñòеì, äî яêèõ â³äíîñяòüñя пðîцеñè é îблàäíàííя елеêòðîäíîгî âèðîбíèцòâà, äàє ìîж-лèâ³ñòü бóäóâàòè ñêлàäí³ ìàòеìàòè÷í³ ìîäел³ òà пðîâîäèòè ÷èñлîâ³ еêñпеðèìеíòè ç ìеòîю ðîçðîбêè ðàц³îíàлüíèõ òеõí³÷íèõ ð³шеíü ç³ çìеíшеííя ПÂЕ âèðîбíèцòâà òà òеõíîгеííîгî âплèâó íà îòî-÷óю÷е ñеðеäîâèще ó êîðîòê³ òеðì³íè òà ç ì³í³ìàлüíèìè ìàòеð³àлüíèìè çàòðàòàìè [1][2][3][4].…”

Section: узагальнена ìаòеìаòична ìодель ф³зичних ïол³в òехнолог³чних ïеред³л³в виробницòва елекòрограф³òової ïродукц³їunclassified

Generalized Mathematical Model of Physical Fields of Technological Redistributions of Manufacturing Electrographite Products

Leleka

2021

Energ. Tech. & Res. Sav.

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A generalized mathematical model of the physical fields of the main technological redistributions of electrographite products is developed, which is based on a continuous-discrete approach to the description of nonlinear behavior of solids, liquids and gases, and bulk media. It is shown that the continuous formulation of physical processes in the technology of carbongraphite production is based on the Euler frame of reference and may include the following equations: conservation of mass, momentum and energy, electrical conductivity in the vortex-free approximation of electric potential and transport of chemical components of combustion reactions. The discrete formulation of physical processes in bulk materials used in the technology of production of carbon graphite products is based on the Lagrangian frame of reference and may include the following equations: translational and rotational motion and energy. The application of the generalized mathematical model for construction or refinement of mathematical and numerical models of separate redistributions for performance of the numerical analysis of physical fields and parameters of processes and the equipment on examples of pressing of "green" electrode preparations and theoretical research of effective thermophysical properties of loose carbonaceous materials. On the basis of the developed generalized statement, the complex of separate mathematical models of such redistributions of production of electrographite production as: calcination of carbonaceous materials in electrocalciners, gasification of carbonaceous materials in the equipment of rotary calcination furnaces is also formulated and specified, burning and graphitization of electrographite blanks. Bibl. 40, Fig. 4.

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The development of carbon monoxide oxidation reactor for multi-chamber furnaces for baking electrode blanks

et al. 2023

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The article highlights the development of cheap affordable highly efficient catalytic oxidation system of harmful components of industrial flue gases of carbon graphite enterprises, its design features according to the parameters of furnace equipment, which will significantly improve the environmental safety of metallurgical and machine-building enterprises. The presented calculation and design solutions, in addition to carbon production, can be used in environmental protection technologies at other environmentally hazardous facilities to neutralize toxic emissions. The paper presents the calculation of the catalytic CO oxidation reactor made for the real flow rate of flue gases with temperature range 270−390 ºC, which come out of the combustion chamber of the Riedhammer "first fire" kiln, heated by the flue gases. For such medium exothermic processes, mass and heat transfer between gas flow and the outer surface of the catalyst grains is sufficient intense. In this case for description of the catalytic process in the reactor is sufficient to use quasi-homogeneous single-phase model. The model of plug-flow reactor with a fixed bed of catalyst was used to calculate the flow parameters of the gas mixture through a reactor loaded with a composite zeolite-based manganese-oxide catalyst in the process of catalytic CO oxidation. The calculation results obtained using the software CHEMCAD 7.1.5 were almost identical to the previously made calculation. The peculiarity of the suggested solution was the use of the designed catalytic reactor for treatment of large volume of flue gases with low concentrations of CO at the companies of electrode carbon graphite production

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Development of a Catalyst for Flue Gas Purification from Carbon Monoxide of Multi-Chamber Furnaces for Baking Electrode Blanks

Cited by 6 publications

References 15 publications

Use of Metal Oxide-Modified Aerated Concrete for Cleaning Flue Gases from Carbon Monoxide

Use of Metal Oxide-Modified Aerated Concrete for Cleaning Flue Gases from Carbon Monoxide

Generalized Mathematical Model of Physical Fields of Technological Redistributions of Manufacturing Electrographite Products

The development of carbon monoxide oxidation reactor for multi-chamber furnaces for baking electrode blanks

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