Experience of Estimating Amount of Inert Gases in Compressed Gas Mixtures
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RESEARCH, DESIGN, NUMERICAL ANALYSES, AND OPERATING EXPERIENCE CRYOGENIC EQUIPMENT, PRODUCTION AND APPLICATION OF INDUSTRIAL GASES. VACUUM TECHNOLOGY CRYOGENIC EQUIPMENT AND TECHNOLOGIES EXPERIENCE OF ESTIMATING AMOUNT OF INERT GASES IN COMPRESSED GAS MIXTURES V. L. Bondarenko,1 I. A. Losyakov,2 O. V. D’yachenko,3 and T. V. D’yachenko4
UDC 621.565
For production planning and for mutual settlements with suppliers and customers it is important to accurately determine the amount of inert gases at all stages of the technological sequence of their extraction. Gravimetric and manometric methods are proposed for estimating the volumes of compressed gases as applied to pure gases and their mixtures. A comparative evaluation has been made of the methods proposed by various authors for estimating amounts of valuable components in compressed gas mixtures based on manometric method. A universal manometric method that allows determination of the amount of neon and helium in compressed gas mixtures with an adequate degree of accuracy has been developed. The reliability of the calculation method has been verified by comparing the calculated volumes of the inert gases with the results obtained by gravimetric method. Based on the developed method and the data on the compressibility of the mixture components, a program has been developed. Application of the developed program simplifies calculations for helium- and neon-containing mixtures. Keywords: inert gases, gas mixtures, compressed gas, gravimetric and manometric methods.
Inert gases (neon, krypton, and helium) are abundant valuable products. The sources of inert gases could be atmospheric air [1, 2] and various mixtures of technogenic origin (purge gas streams of ammonia production or gaseous wastes of other technologies where air is used). The content of inert gases in original mixtures is negligible, so extraction of their concentrates is expedient only as byproducts of other technologies. 1
Bauman Moscow State Technical University, Russia; e-mail: [email protected]. Cryoin Engineering LLC (OOO Krioin Inzhiniring), Odessa, Ukraine; e-mail: [email protected]. 3 Cryoin Engineering LLC (OOO Krioin Inzhiniring), Odessa, Ukraine; e-mail: [email protected]. 4 Odessa National Academy of Food Technologies (Odesskaya Natsional’naya Akademiya Pishchevykh Tekhnologii), Ukraine; e-mail: [email protected]. 2
Translated from Khimicheskoe i Neftegazovoe Mashinostroenie, Vol. 56, No. 5, pp. 3−8, May 2020. 0009-2355/20/0506-0335
© 2020
Springer Science+Business Media, LLC
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V. L. BONDARENKO, I. A. LOSYAKOV, O. V. D’YACHENKO,
AND
T. V. D’YACHENKO
In the process of several stages of enrichment, separation, and purification, the gas stock is enriched with the rare (inert) gases hundreds of times. Accurate determination of the quantity of the inert components of the mixtures at various stages of the technological sequence of extraction of these products is becoming a crucial task. In this regard, the producers of inert gases get an opportunity to
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