COMPARISON OF THE PERFORMANCE OF THE OPTIMIZED SQUARED-OFF AND MATCH ABUNDANCE RATIO CASCADES TO SEPARATE LIGHTEST AND HEAVIEST MOLYBDENUM ISOTOPES TO 99.99%

The performance of the optimized three-section squared-off cascade is compared with that of a match abundance ratio cascade (MARC) for the enrichment of 92Mo and 100Mo isotopes from their natural composition to 99.99%. Two codes, namely, 3SQC-PSO and MARC-PSO, are developed for optimizing 200 centrifuge cascades using the particle swarm optimization (PSO) algorithms. The objective function is to maximize the cascade capacity, recovery factor, and the D-function and to minimize the total interstage flow. A comparison of the results shows that a MARC is able to enrich 100Mo with the highest recovery and production capacity. Due to the fact that more than one separation step is required for the separation of 92Mo, a MARC is beyond the capability to separate it to 99.99%, but a squared-off cascade is capable of making this. Therefore, if the goal is the separation of all or some of isotopes of an element, the squared-off cascade is the preferred option for economical industrialization and reducing installation.
The performance of the optimized three-section squared-off cascade is compared with that of a match abundance ratio cascade (MARC) for the enrichment of 92Mo and 100Mo isotopes from their natural composition to 99.99%. Two codes, namely, 3SQC-PSO and MARC-PSO, are developed for optimizing 200 centrifuge cascades using the particle swarm optimization (PSO) algorithms. The objective function is to maximize the cascade capacity, recovery factor, and the D-function and to minimize the total interstage flow. A comparison of the results shows that a MARC is able to enrich 100Mo with the highest recovery and production capacity. Due to the fact that more than one separation step is required for the separation of 92Mo, a MARC is beyond the capability to separate it to 99.99%, but a squared-off cascade is capable of making this. Therefore, if the goal is the separation of all or some of isotopes of an element, the squared-off cascade is the preferred option for economical industrialization and reducing installation. Автор:  S. L. Mirmohammadi, J. Safdari, M. H. Mallah, Farzaneh Ezazi
Ключевые слова:  lightest and heaviest molybdenum isotopes ( 92Mo and 100Mo), three-section squared-off cascade, match abundance ratio cascade (MARC), PSO algorithm
Стр:  860