Automated Cryogenic Unit for Xenon Extraction from Concentrated Mixtures

Бондаренко, В. Л.; Simonenko, Yu. М.; Chigrin, A. A.

doi:10.1007/s10556-019-00529-5

Cited by 5 publications

(4 citation statements)

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“…Raw materials for the krypton and xenon production. The Earth's atmosphere is the main industrial source of inert gases: neon, krypton and xenon [1][2][3][4][5][6]. Inert gases are extracted in the form of lean concentrates during the operation of highperformance air separation plants.…”

Section: Review Of Known Krypton and Xenon Production Technologiesmentioning

confidence: 99%

“…2, point 1). Along with heavy inert substances, explosive hydrocarbon impurities accumulate in the mixture, the content of which, for safety reasons, should not exceed specified limits [1][2][3][4][5][6].…”

Section: Sources Of Impurities In the Production Of Krmentioning

confidence: 99%

“…Air separation products (ASPs) are an important component of many technological processes. They are consumed in large volumes in metallurgy, chemistry and petrochemistry, and cessation or interruptions in supplies make it impossible to produce a number of industrial products [1][2][3][4]. The main consumers of highly pure gas products are countries with developed economies: USA, Germany, Japan, France, China, Korea [4].…”

Section: Introductionmentioning

confidence: 99%

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Отримання Криптону І Ксенону Високої Чистоти

Дьяченко,

Стефановський

2024

J. of Chem. and Tech.

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Інертні гази криптон та ксенон є цінними газовими продуктами. Основним промисловим джерелом рідкісних газів є повітря. У поданій роботі розглянуто особливості ректифікаційної та адсорбційно-ректифікаційної технологій отримання криптону та ксенону. У процесі отримання інертних газів високої чистоти разом із Kr і Xe відбувається збагачення близьких до них за властивостями компонентів повітря. Досліджено способи очищення проміжних продуктів та чистих інертних газів від мікродомішок. Особливу увагу приділено очищенню криптону та ксенону від перфторидів.

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Section: Review Of Known Krypton and Xenon Production Technologiesmentioning

confidence: 99%

Section: Sources Of Impurities In the Production Of Krmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Отримання Криптону І Ксенону Високої Чистоти

Дьяченко,

Стефановський

2024

J. of Chem. and Tech.

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“…The volume content of this gas in the atmosphere is only 18 ppm. Therefore, the initial raw material for neon production is helium-neon concentrates obtained from non-condensable exhaust gases of large air separation plants of metallurgical industries [5][6][7]. The purified concentrate contains 75-77% neon and 25-23% helium.…”

Section: Introductionmentioning

confidence: 99%

Anomalous Diffusion of Helium and Neon in Low-Density Silica Glass

Kukhtetskiy,

Fomenko,

Anshits

2023

Membranes

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The diffusion properties of low-density non-porous silica glasses (expanded silica glasses) were researched with the aim of searching for the molecular structure of membrane materials intended for the effective separation of helium–neon gas mixtures. It has been shown on a large number (84) of computer models of such glasses that there are molecular structures of silica in which various helium and neon diffusion mechanisms are simultaneously implemented: superdiffusion for helium and subdiffusion for neon. This makes it possible to significantly (by 3–5 orders of magnitude) increase the helium permeability of such glasses at room temperature and maintain a high selectivity for the separation of helium and neon (at the level of 104–105) at the same time.

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