Experimental study of permeation and selectivity of zeolite membranes for tritium processes

Borisevich, O.; Antunes, Rodrigo; Demange, D.

doi:10.1016/j.fusengdes.2015.04.015

Cited by 6 publications

(2 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The KIT Tritium Laboratory (Karlsruhe, Germany) has proposed these zeolite membranes together with the PERMCAT reactor as a new concept for the TES in the HCPB blanket. In this concept, zeolite membranes operate a first separation of the mixture by reducing the He/T molar ratio thanks to the higher selectivity of hydrogen isotopes in respect to helium (the measured selectivity is between 2.2 and 1.4, depending on the operating temperature) [28]. Getter beds are widely used for hydrogen storage and can be applied in the separateion of hydrogen isotopes.…”

Section: Pre-concentration Stage (Pcs)mentioning

confidence: 99%

See 1 more Smart Citation

Design of a Multi-Tube Pd-Membrane Module for Tritium Recovery from He in DEMO

et al. 2016

View full text Add to dashboard Cite

Abstract:Dense self-supported Pd-alloy membranes are used to selectively separate hydrogen and hydrogen isotopes. In particular, deuterium (D) and tritium (T) are currently identified as the main elements for the sustainability of the nuclear fusion reaction aimed at carbon free power generation. In the fusion nuclear reactors, a breeding blanket produces the tritium that is extracted and purified before being sent to the plasma chamber in order to sustain the fusion reaction. In this work, the application of Pd-alloy membranes has been tested for recovering tritium from a solid breeding blanket through a helium purge stream. Several simulations have been performed in order to optimize the design of a Pd-Ag multi-tube module in terms of geometry, operating parameters, and membrane module configuration (series vs. parallel). The results demonstrate that a pre-concentration stage before the Pd-membrane unit is mandatory because of the very low tritium concentration in the He which leaves the breeding blanket of the fusion reactor. The most suitable operating conditions could be reached by: (i) increasing the hydrogen partial pressure in the lumen side and (ii) decreasing the shell pressure. The preliminary design of a membrane unit has been carried out for the case of the DEMO fusion reactor: the optimized membrane module consists of an array of 182 Pd-Ag tubes of 500 mm length, 10 mm diameter, and 0.100 mm wall thickness (total active area of 2.85 m 2 ).

show abstract

Section: Pre-concentration Stage (Pcs)mentioning

confidence: 99%

“…Such a characteristic increases the reliability and, especially, reduces the tritium inventory [28].…”

Section: Pre-concentration Stage (Pcs)mentioning

confidence: 99%