Comparative Analysis of Various Adsorbents for Low-Temperature Separation of a 20Ne–22Ne Isotopic Mixture

Бондаренко, В. Л.; Nikiforov, Yu. V.; Vorotyntsev, V. B.

doi:10.1007/s10556-016-0115-7

Cited by 3 publications

(1 citation statement)

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“…Low-temperature adsorption as a separation method is devoid of these drawbacks, but has been little studied. The experimental values of the separations coefficients of isotopes of helium, argon, and neon for the adsorption method are partially presented in [4,5], but this information is insufficient for theoretical estimates. Figure 1 shows the developed flow chart for the estimated calculation of the isotope separation of inert gases by the method of low-temperature adsorption.…”

Section: Introductionmentioning

confidence: 99%

Analysis of argon isotope separation by low temperature adsorption

2020

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In this work, the estimated calculated values of the critical parameters of argon isotopes 36Ar, 38Ar, 40Ar and the corresponding values of the constants of the Van der Waals, Redlich-Kwong and Peng-Robinson equations of state are obtained. The data obtained make it possible to calculate the adsorption isotherms of argon isotopes on microporous adsorbents. The technique proposed for obtaining analytical expressions for the adsorption isotherms of argon isotopes at cryogenic temperatures makes it possible to estimate the degree of influence of the pressure of the isotope mixture and its composition on the mixture separations coefficients.

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Section: Introductionmentioning

confidence: 99%

Analysis of argon isotope separation by low temperature adsorption

2020

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Separation of Noble-Gas Isotope Mixtures Using Low-Temperature Adsorption

et al. 2020

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Extraction of helium from neon-helium mixture by the adsorption method

Yang¹,

Kupriyanov²,

Кононова³

2023

Refrigeration Technology

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Helium is an importantnatural resourceand it hasgreat importance for scientific research. It is currently extracted mainly from natural gas or inlarge air separation units. Heliumandneonareusually separatedfrom an separationcolumntogether. In order to obtain pure neon and helium they are further purified. This article discusses the main methods of extracting helium from the neon-helium mixture.Having compared rectification, freezing, membrane separation and sorption methods, the authors concluded that the adsorption method allows separation at relatively high temperature intervals and is more energy-efficient than the other methods considered. The paper presents existing examples of the application of the adsorption method for the purification of helium from neon, which have been implemented in Chinaand in the CIS. An overview of adsorption separation on new adsorbents, both on metal-organic bases and on single-walled carbon nanotubes, is also presented. In the future, the authors will conduct experiments to fill in the data gaps on adsorption and desorption of neon-heliummixture on different adsorbents.

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Comparative Analysis of Various Adsorbents for Low-Temperature Separation of a 20Ne–22Ne Isotopic Mixture

Cited by 3 publications

References 4 publications

Analysis of argon isotope separation by low temperature adsorption

Analysis of argon isotope separation by low temperature adsorption

Separation of Noble-Gas Isotope Mixtures Using Low-Temperature Adsorption

Extraction of helium from neon-helium mixture by the adsorption method

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