Design of cascade with locally enlarged flow for enrichment of intermediate components of multi-isotope mixtures

Smirnov, A. Yu.; Sulaberidze, G. A.; Xie, Qingming; Borisevich, V. D.

doi:10.1016/j.cherd.2014.12.012

Cited by 10 publications

(2 citation statements)

References 13 publications

(26 reference statements)

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“…The development of this structure process and the interaction between fluxes and separation units is known as Cascade Theory . The scientific literature is plentiful in work focused in the development and optimization of process topology. − A deep analysis on how to apply those concepts to the present examples is unfortunately beyond the scope of the present article.…”

Section: Discussionmentioning

confidence: 98%

A First Assessment on the Scale-Up Possibilities of Different Electrochemical Techniques for Lithium Isotopic Enrichment

Acosta

Flexer

2018

Ind. Eng. Chem. Res.

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Chemicals enriched in lithium isotopes are of paramount importance in the current nuclear fission technology, in future nuclear fusion technology, and in neutron detectors. Currently, lithium isotopes are obtained by using mercury amalgams, which is a nonenvironmentally friendly procedure. An interesting alternative is to take advantage of the electrochemical isotope effect. Here, we take, as the departure point, experimental data that were already reported for a prospective first stage of an electrochemical process, and we numerically simulate different scale-up possibilities. We calculate the minimum number of repetitive stages needed to reach a certain degree of isotopic enrichment. Second, we improve our simulations, considering that different operating conditions are used while keeping the same fundamental electrochemical process: a minimum of 145 stages are necessary to produce a sample with 90% enrichment in 6 Li. We conclude with a comparison on the different electrochemical technologies, in view of the complementary steps necessary for scaling up.

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Section: Discussionmentioning

confidence: 98%

A First Assessment on the Scale-Up Possibilities of Different Electrochemical Techniques for Lithium Isotopic Enrichment

Acosta

Flexer

2018

Ind. Eng. Chem. Res.

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“…These four external parameters vary with feed flow rate and this reality leads to optimal cascade design. External parameters must satisfy balances on material and on the desired component over the throughout cascade [15], that is:…”

Section: Cascade Structure and Governing Equationsmentioning

confidence: 99%

A new algorithm for simulation of the functional symmetric and asymmetric cascades

Norouzi

Khajenoori

Safdari

et al. 2021

NEP

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Design of cascade based on operational functions of a single machine is an important goal in the isotope separation theory. By recognizing the behavior of gas in a centrifuge machine, a cascade with desirable properties and parameters can be designed. In the classical theory of multistage separation installation, it has been shown that in an ideal cascade (no mixing) the total number of separation elements flow is minimal, and accordingly, the maximum separation work unit (SWU) of the cascade occurs. In the practical form, the cut and separation factors may assume to be dependent on the feed flow. Using specific functional parameters, the algorithm, design the functional cascades (DFUNCAS), can design the functional symmetric and asymmetric cascades. DFUNCAS can design a cascade with stated waste and product concentration. Furthermore, the program can design symmetric and asymmetric cascades. In this work, four test cases were considered and the results show that the DFUNCAS can design any kind of cascade accurately.

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Optimal Multistream Cascades for Simultaneous Production of High-Enrichment Intermediate Components

Palkin

2020

At Energy

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Design of cascade with locally enlarged flow for enrichment of intermediate components of multi-isotope mixtures

Cited by 10 publications

References 13 publications

A First Assessment on the Scale-Up Possibilities of Different Electrochemical Techniques for Lithium Isotopic Enrichment

A First Assessment on the Scale-Up Possibilities of Different Electrochemical Techniques for Lithium Isotopic Enrichment

A new algorithm for simulation of the functional symmetric and asymmetric cascades

Optimal Multistream Cascades for Simultaneous Production of High-Enrichment Intermediate Components

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