{"title":"喷雾化学反应动力学","authors":"V. B. Fedoseev, E. N. Fedoseeva","doi":"10.1134/S0023158423601201","DOIUrl":null,"url":null,"abstract":"<p>The number of observations that demonstrate a significant effect of the size of droplets on the kinetics of chemical processes has increased with the expansion of the scope of applications of spray technology. The equations linking the concentrations of reagents, the volume of droplets, the initial composition of a solution, the composition of the gas medium, and the speed of processes are formulated within the framework of formal chemical kinetics. Using second order reactions (coupling, exchange, condensation, polymerization, and polycondensation reactions) as examples, it is shown that size kinetic effects occur when chemical processes are accompanied by changes in the droplet sizes in equilibrium with the gas medium. The results of computer simulation of condensation and polycondensation reactions are given, which reproduce size effects. Kinetic curves obtained by simulation of the polycondensation process are compared with experimental data.</p>","PeriodicalId":682,"journal":{"name":"Kinetics and Catalysis","volume":"65 2","pages":"85 - 92"},"PeriodicalIF":1.3000,"publicationDate":"2024-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Kinetics of Chemical Reactions in Spray\",\"authors\":\"V. B. Fedoseev, E. N. Fedoseeva\",\"doi\":\"10.1134/S0023158423601201\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The number of observations that demonstrate a significant effect of the size of droplets on the kinetics of chemical processes has increased with the expansion of the scope of applications of spray technology. The equations linking the concentrations of reagents, the volume of droplets, the initial composition of a solution, the composition of the gas medium, and the speed of processes are formulated within the framework of formal chemical kinetics. Using second order reactions (coupling, exchange, condensation, polymerization, and polycondensation reactions) as examples, it is shown that size kinetic effects occur when chemical processes are accompanied by changes in the droplet sizes in equilibrium with the gas medium. The results of computer simulation of condensation and polycondensation reactions are given, which reproduce size effects. Kinetic curves obtained by simulation of the polycondensation process are compared with experimental data.</p>\",\"PeriodicalId\":682,\"journal\":{\"name\":\"Kinetics and Catalysis\",\"volume\":\"65 2\",\"pages\":\"85 - 92\"},\"PeriodicalIF\":1.3000,\"publicationDate\":\"2024-05-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Kinetics and Catalysis\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S0023158423601201\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Kinetics and Catalysis","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1134/S0023158423601201","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
The number of observations that demonstrate a significant effect of the size of droplets on the kinetics of chemical processes has increased with the expansion of the scope of applications of spray technology. The equations linking the concentrations of reagents, the volume of droplets, the initial composition of a solution, the composition of the gas medium, and the speed of processes are formulated within the framework of formal chemical kinetics. Using second order reactions (coupling, exchange, condensation, polymerization, and polycondensation reactions) as examples, it is shown that size kinetic effects occur when chemical processes are accompanied by changes in the droplet sizes in equilibrium with the gas medium. The results of computer simulation of condensation and polycondensation reactions are given, which reproduce size effects. Kinetic curves obtained by simulation of the polycondensation process are compared with experimental data.
期刊介绍：
Kinetics and Catalysis Russian is a periodical that publishes theoretical and experimental works on homogeneous and heterogeneous kinetics and catalysis. Other topics include the mechanism and kinetics of noncatalytic processes in gaseous, liquid, and solid phases, quantum chemical calculations in kinetics and catalysis, methods of studying catalytic processes and catalysts, the chemistry of catalysts and adsorbent surfaces, the structure and physicochemical properties of catalysts, preparation and poisoning of catalysts, macrokinetics, and computer simulations in catalysis. The journal also publishes review articles on contemporary problems in kinetics and catalysis. The journal welcomes manuscripts from all countries in the English or Russian language.
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