Study of hydrogen recovery from Li-Pb using packed tower

Fukada, Satoshi; Nishikawa, Terunori; Kinjo, Mao; Katayama, Kazunari

doi:10.1016/j.fusengdes.2018.07.016

Cited by 6 publications

(2 citation statements)

References 20 publications

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“…Extraction from the liquid metal is performed via gas–liquid contactors consisting of vertical columns where a helium stream rises up counter-currently to the LiPb fed at the top (300–500 °C). The gas–liquid contactors can be realized by packed bed columns, bubble columns, or spray columns [15,16]. Thanks to their high packing area (750 m 2 m −3 ), the packed column can achieve 30% efficiency (the ratio between the exchanged hydrogen flux and the hydrogen flux in the inlet LiPb) [17].…”

Section: Fusion Fuel Cyclementioning

confidence: 99%

Membrane Processes for the Nuclear Fusion Fuel Cycle

Tosti

Pozio

2018

Membranes

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This paper reviews the membrane processes for the nuclear fusion fuel cycle—namely, the treatment of the plasma exhaust gases and the extraction of tritium from the breeding blankets. With respect to the traditional processes, the application of membrane reactors to the fusion fuel cycle reduces the tritium inventory and processing time, thus increasing the safety and availability of the system. As an example, self-supported Pd-alloy membrane tubes have been studied for the separation of hydrogen and its isotopes from both gas- and liquid-tritiated streams through water-gas shift and isotopic swamping reactions. Furthermore, this paper describes an innovative membrane system (Membrane Gas–Liquid Contactor) for the extraction of hydrogen isotopes from liquid LiPb blankets. Porous membranes are exposed to the liquid metal that penetrates the pores without passing through them, then realizing a gas–liquid interface through which the mass transfer of hydrogen isotopes takes place. Compared to the conventional hydrogen isotope extraction processes from LiPb that use the “permeator against vacuum” concept, the proposed process significantly reduces mass-transfer resistance by improving the efficiency of the tritium recovery system.

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Section: Fusion Fuel Cyclementioning

confidence: 99%

Membrane Processes for the Nuclear Fusion Fuel Cycle

Tosti

Pozio

2018

Membranes

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“…Potential applications concern the fusion fuel cycle where hydrogen isotopes have to be separated from plasma exhausts, from breeding blankets, and from coolants (water, helium) [3]. Several methods are proposed for recovering tritium from water [4,5,6,7,8,9] and, in particular, the use of membrane processes introduces the advantages of high reliability and continuous operations, ensuring the more efficient and safe management of a fusion power plant [10].…”

Section: Introductionmentioning

confidence: 99%

Pd-Ag Electrical Resistivity in Hydrogen and Deuterium: Temperature Effect

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Tosti

2019

Materials

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The electrical resistivity of Pd-Ag (silver 21 wt.%) in hydrogen and deuterium atmosphere at 100 kPa has been investigated via electrochemical impedance spectroscopy. The electrical resistivity of Pd-Ag vs. the temperature presents the characteristic S-shaped curve with a minimum and a maximum of the resistivity in different positions for the tests in hydrogen and deuterium. The results have been related to: (1) the different isotope ratios, H/M and D/M, and (2) their position in the Pd-Ag lattice. The behavior of the electrical resistivity is discussed in details by considering the hydrogen and deuterium uploading into the alloy, its effect on the conduction electrons, and the scattering of the isotopes atoms into the metal lattice. Measurements carried out in hydrogen with slow temperature ramping between 25–250 °C evidenced a hysteresis effect that can be explained by the different energy levels of isotopes in O-sites and T-sites

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Membrane technology for tritium recovery in fusion power plants

Santucci,

Tosti

2024

Current Trends and Future Developments on (Bio-) Membranes

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Study of hydrogen recovery from Li-Pb using packed tower

Cited by 6 publications

References 20 publications

Membrane Processes for the Nuclear Fusion Fuel Cycle

Membrane Processes for the Nuclear Fusion Fuel Cycle

Pd-Ag Electrical Resistivity in Hydrogen and Deuterium: Temperature Effect

Membrane technology for tritium recovery in fusion power plants

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