氢氟碳化合物 R134a 水合物的相平衡。基于水合物的氯化钠盐溶液脱盐

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-09-18 DOI:10.1134/S1810232824030172

A. V. Meleshkin, A. K. Sagidullin, S. Y. Misyura, V. S. Morozov, N. V. Marasanov, V. V. Glezer, M. Sh. Madygulov, M. T. Mito

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摘要

摘要在氯化钠水溶液中获得了氢氟碳化合物 R134a 水合物相平衡的实验依赖性（压力-温度）。测量是在水中盐浓度为 3.25 wt. % 时进行的，压力范围为 0.5 至 2.5 巴，温度范围为 -3 至 10°C。与纯水系统相比，盐在溶液中的存在具有抑制作用。在设定压力下，R134a 水合物平衡曲线上的平衡温度降低了 12-25%，这与纯水系统的温度不同。与初始盐浓度相比，溶液中的盐浓度降低了 92%。

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Phase Equilibrium for Hydrofluorocarbon R134a Hydrate. Hydrate-Based Desalination of NaCl Salt Solution

Experimental dependences (pressure-temperature) of phase equilibrium of hydrofluorocarbon R134a hydrate have been obtained in aqueous solution of the NaCl salt. The measurements were carried out at a salt concentration in water of 3.25 wt. % in the pressure range from 0.5 to 2.5 bar at temperatures varying from −3 to 10°C. In contrast with the pure water system, the presence of salt in the solution had an inhibitory effect. The equilibrium temperature on the equilibrium curve of R134a hydrate at a set pressure decreased by 12–25%, unlike the temperature for the system with pure water. Combined washing process followed by centrifugation decreased the mass concentration of the salt in the solution by 92% compared to the initial salt concentration.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.