{"title":"Effect of Water-Soluble Polymers on the Dynamics of Carbon Dioxide Sorption by Lime-Based Sorbents","authors":"V. S. Derevshchikov, O. Yu. Selyutina","doi":"10.1134/S2070050423040062","DOIUrl":null,"url":null,"abstract":"<p>This study concerns the effect of water-soluble polymers with different structures on the sorption properties of unregenerable lime-based sorbents of carbon dioxide. It is shown that introducing water-soluble polymers into the composition of sorbents can either prolong or shorten the periods of their protective effect. To explain these findings, the porous structure of sorbents is studied, the transport of carbon dioxide is modeled using molecular dynamics, and coefficients of the diffusion of СО<sub>2</sub> in water–polymer solutions are calculated. Modelling results correlate with data from sorption experiments: a stronger dynamic sorption capacity is obtained for a sorbent when a water–polymer medium with a greater coefficient of СО<sub>2</sub> diffusion is added. These results can be used to optimize systems for separating carbon dioxide from gaseous mixtures and intensify mass transfer in systems for the photo- and electrocatalytic conversion of СО<sub>2</sub> into useful products.</p>","PeriodicalId":507,"journal":{"name":"Catalysis in Industry","volume":"15 4","pages":"325 - 332"},"PeriodicalIF":0.7000,"publicationDate":"2023-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Catalysis in Industry","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1134/S2070050423040062","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
This study concerns the effect of water-soluble polymers with different structures on the sorption properties of unregenerable lime-based sorbents of carbon dioxide. It is shown that introducing water-soluble polymers into the composition of sorbents can either prolong or shorten the periods of their protective effect. To explain these findings, the porous structure of sorbents is studied, the transport of carbon dioxide is modeled using molecular dynamics, and coefficients of the diffusion of СО2 in water–polymer solutions are calculated. Modelling results correlate with data from sorption experiments: a stronger dynamic sorption capacity is obtained for a sorbent when a water–polymer medium with a greater coefficient of СО2 diffusion is added. These results can be used to optimize systems for separating carbon dioxide from gaseous mixtures and intensify mass transfer in systems for the photo- and electrocatalytic conversion of СО2 into useful products.
期刊介绍：
The journal covers the following topical areas:
Analysis of specific industrial catalytic processes: Production and use of catalysts in branches of industry: chemical, petrochemical, oil-refining, pharmaceutical, organic synthesis, fuel-energetic industries, environment protection, biocatalysis; technology of industrial catalytic processes (generalization of practical experience, improvements, and modernization); technology of catalysts production, raw materials and equipment; control of catalysts quality; starting, reduction, passivation, discharge, storage of catalysts; catalytic reactors.Theoretical foundations of industrial catalysis and technologies: Research, studies, and concepts : search for and development of new catalysts and new types of supports, formation of active components, and mechanochemistry in catalysis; comprehensive studies of work-out catalysts and analysis of deactivation mechanisms; studies of the catalytic process at different scale levels (laboratory, pilot plant, industrial); kinetics of industrial and newly developed catalytic processes and development of kinetic models; nonlinear dynamics and nonlinear phenomena in catalysis: multiplicity of stationary states, stepwise changes in regimes, etc. Advances in catalysis: Catalysis and gas chemistry; catalysis and new energy technologies; biocatalysis; nanocatalysis; catalysis and new construction materials.History of the development of industrial catalysis.
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