PRINCIPLES ACCUMULATIVE DISTILLATION AND THE POSSIBILITIES HER APPLICATION IN THE AIR LOW-TEMPERATURE SEPARATION PROCESS

Authors

DOI:

https://doi.org/10.18198/j.ind.gases.2014.0746

Keywords:

Rectification air. Column. Feed. Mixture. Semi-volatile components. Krypton. Xenon. Concentration. Accumulative vessel

Abstract

The existing technology of krypton and xenon concentration in the air separation plants doesn't allow to produce the concentrate with the total content of Kr and Xe exceeding 0,4...0,5 %. The option is proposed for the accumulative distillation consisting in concentration of semi-volatile components of mixture in the column still with a constant feed without the bottom product withdrawal. Considered is the diagram of the accumulative distillation plant for krypton and xenon concentration from the mixture wherein oxygen is preliminary displaced with nitrogen. Given are the results of calculation of the mixture composition change in time in the accumulative vessel. The possibility of significant increase in the content of Kr and Xe in the product concentrate withdrawn from the ASP is shown. The suggested method allows to reduce costs for the concentrate transportation and further processing.

Author Biographies

А. В. Кортиков, «Cryogenmash», 67, Lenin Avenue, Balashikha, Moscow region, Russia, 143907

A.V.Kortikov, Candidate of Technical Sciences

Е. Ю. Тарасова, «Cryogenmash», 67, Lenin Avenue, Balashikha, Moscow region, Russia, 143907

E.Yu. Tarasova

References

Skorodumov B.A., Karpov V.N., Pisarev Yu.G. (2002). The air separation units of new generation// Tekhnicheskie Gazy. [Industrial Gases]. —№ 4. — P. 23-30. (Rus.).

Golovko G.A. (1983). Cryogenic production of inert gases. — L.: Mashinostroenie, Leningrad. dep. — 416 p. (Rus.).

Kortikov A.V. (2012). Starting condition of air separation plants provided with argon production unit// Tekhnicheskie Gazy. [Industrial Gases]. — № 5. — P. 41-45. (Rus.).

Zelvenskiy Ya.D., Titov A.A., Shalyigin V.A. (1974). Rectification of dilute solutions. — L.:Chemistry. — 216 p. (Rus.).

Pisarev Yu.G., Tarasova E.Yu., Lyapin A.I. (2008). Characteristic of air separation plant of new generation entered into operation in close JSC «Severodonetsk azot association»// Tekhnicheskie Gazy. [Industrial Gases].— № 5. — P. 31-37.(Rus.).

Downloads

Issue

No. 5 (2014): Технические газы

Section

PLANTS AND THE EQUIPMENT FOR MANUFACTURING OF AIR SEPARATION PRODUCTS AND OTHER INDUSTRIAL GASES

License

LICENSE AGREEMENT
After receiving an article for publication as required revision scientometric databases each author directs the license agreement on the assignment and transfer of the management of copyright. Signatures of the author (s) it is desirable to seal the personnel department of the institution where the author works (authors), or the seal of the Faculty.
Revision refers to the authors one layout for proofreading. Permissible only those fixes that result in compliance with the layout of the original text of the article. Significant changes are not permitted. Layout should be sent to the editorial office within days of receipt.