On the study of catalytic membrane reactor for water detritiation: Membrane characterization

Mascarade, Jérémy; Liger, Karine; Troulay, Michèle; Joulia, Xavier; Meyer, A.; Perrais, Christophe; Tosti, Silvano

doi:10.1016/j.fusengdes.2013.01.057

Cited by 3 publications

(3 citation statements)

References 17 publications

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“…Fig. 1 gives a schematic view of the instrumented experimental device; a detailed description of the process has already been reported [9]. Diluted deuterated feed stream, composed of binary mixtures of N 2 and D 2 O, is fed to the lumen side of a finger-type catalytic membrane reactor containing about 20 g of commercial Ni-Based catalyst pellets (NiSAT ® 310RSCDS).…”

Section: Experimental Facilitymentioning

confidence: 99%

“…Remaining reaction products are removed by the retentate stream. Calibration of the analysis chain is described in [9]. Combining the composition measurements with the streams total flow rates allowed to track molecular and atomic species from any inlet to any outlet of the catalytic membrane reactor.…”

Section: Experimental Facilitymentioning

confidence: 99%

“…2). The permeabilities of protium and deuterium in the membrane were determined in a previous study [9] and are given in the Table 3 below. The other parameters were estimated using correlations established in former studies (see Table 4).…”

Section: Parametersmentioning

confidence: 99%

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On the study of catalytic membrane reactor for water detritiation: Modeling approach

Liger

Mascarade

Joulia

et al. 2016

Fusion Engineering and Design

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Experimental results for the conversion of tritiated water (using deuterium as a simulant of tritium) by means of a catalytic membrane reactor in view of tritium recovery.• Phenomenological 2D model to represent catalytic membrane reactor behavior including the determination of the compositions of gaseous effluents.• Good agreement between the simulation results and experimental measurements performed on the dedicated facility.• Explanation of the unexpected behavior of the catalytic membrane reactor by the modeling results and in particular the gas composition estimation.In the framework of tritium recovery from tritiated water, efficiency of packed bed membrane reactors have been successfully demonstrated. Thanks to protium isotope swamping, tritium bonded water can be recovered under the valuable Q 2 form (Q = H, D or T) by means of isotope exchange reactions occurring on catalyst surface. The use of permselective Pd-based membrane allows withdrawal of reactions products all along the reactor, and thus limits reverse reaction rate to the benefit of the direct one (shift effect). The reactions kinetics, which are still little known or unknown, are generally assumed to be largely greater than the permeation ones so that thermodynamic equilibriums of isotope exchange reactions are generally assumed. This paper proposes a new phenomenological 2D model to represent catalytic membrane reactor behavior with the determination of gas effluents compositions. A good agreement was obtained between the simulation results and experimental measurements performed on a dedicated facility. Furthermore, the gas composition estimation permits to interpret unexpected behavior of the catalytic membrane reactor. In the next future, further sensitivity analysis will be performed to determine the limits of the model and a kinetics study will be conducted to assess the thermodynamic equilibrium of reactions.

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Section: Experimental Facilitymentioning

confidence: 99%

Section: Experimental Facilitymentioning

confidence: 99%

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On the study of catalytic membrane reactor for water detritiation: Modeling approach

Liger

Mascarade

Joulia

et al. 2016

Fusion Engineering and Design

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Key design integration issues addressed in the EU DEMO pre-concept design phase

Bachmann

Ciattaglia

Cismondi

et al. 2020

Fusion Engineering and Design

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Membrane Reactor for Water Detritiation: a Parametric Study on Operating Parameters

Mascarade

Liger

Joulia

et al. 2015

Fusion Science and Technology

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OATAO is an open access repository that collects the work of some Toulouse researchers and makes it freely available over the web where possible. This is version published in:Official URL: To cite this version:This paper presents the results of a parametric study done on a single stage finger-type packed-bed membrane reactor (PBMR) used for heavy water vapor dedeuteration. Thanks to mass spectrometer analysis of streams leaving the PBMR, speciation of deuterated species was achieved. Measurement of the amounts of each molecular component allowed the calculation of reaction quotient at the packed-bed outlet (i.e. retentate). They highlighted that isotopic exchange reactions occurring on the catalyst particles surface are not thermodynamically equilibrated. Moreover, variation of the heavy water content in the feed exhibits competition between permeation and conversion kinetics.

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On the study of catalytic membrane reactor for water detritiation: Membrane characterization

Cited by 3 publications

References 17 publications

On the study of catalytic membrane reactor for water detritiation: Modeling approach

On the study of catalytic membrane reactor for water detritiation: Modeling approach

Key design integration issues addressed in the EU DEMO pre-concept design phase

Membrane Reactor for Water Detritiation: a Parametric Study on Operating Parameters

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