Quantitative measurement of beryllium-controlled redox of hydrogen fluoride in molten Flibe

Michael F. Simpson; Galen R. Smolik; John P. Sharpe; Robert A. Anderl; David A. Petti; Yuji Hatano; Masanori Hara; Yasuhisa Oya; Satoshi Fukada; Satoru Tanaka; Takayuki Terai; Dai Kai Sze

doi:10.1016/j.fusengdes.2005.08.031

Quantitative measurement of beryllium-controlled redox of hydrogen fluoride in molten Flibe

Michael F. Simpson, Galen R. Smolik, John P. Sharpe, Robert A. Anderl, David A. Petti, Yuji Hatano, Masanori Hara, Yasuhisa Oya, Satoshi Fukada, Satoru Tanaka, Takayuki Terai, Dai Kai Sze

Engineering Science for Advanced energy system

Research output: Contribution to journal › Conference article › peer-review

26 Citations (Scopus)

Abstract

In order to investigate the viability of using Be as a redox agent in a molten Flibe (2LiF-BeF₂) blanket, a series of kinetics experiments were performed in which HF was bubbled through Flibe with varying concentrations of dissolved Be. The feed gas consisted of 910-1800 ppm HF and 0.1-0.2 vol.% H₂, with the balance comprised of He. A cylindrical rod of Be was contacted with the salt for periods of time ranging from 600 to 3600 s, resulting in mole fractions in the salt ranging from 4.3 × 10^-5 to 2.6 × 10^-4. Initially, high HF conversion levels in excess of 90% were observed. As HF reacted with the Be, the conversion levels slowly dropped over a period of several hours to a few days. A simple kinetic model, which is first order in both HF and Be concentration has been coupled with a non-mixed reactor model to yield a good fit to the data. Application of this model indicates that Be should be suitable for keeping the TF concentration in the salt below 0.02 ppb.

Original language	English
Pages (from-to)	541-547
Number of pages	7
Journal	Fusion Engineering and Design
Volume	81 A
Issue number	1-4
DOIs	https://doi.org/10.1016/j.fusengdes.2005.08.031
Publication status	Published - Feb 1 2006
Event	Proceedings of the Seventh International Symposium on Fusion Nuclear Technology ISFNT-7 Part A - Duration: May 22 2005 → May 27 2005

All Science Journal Classification (ASJC) codes

Civil and Structural Engineering
Nuclear Energy and Engineering
Materials Science(all)
Mechanical Engineering

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10.1016/j.fusengdes.2005.08.031

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title = "Quantitative measurement of beryllium-controlled redox of hydrogen fluoride in molten Flibe",

abstract = "In order to investigate the viability of using Be as a redox agent in a molten Flibe (2LiF-BeF2) blanket, a series of kinetics experiments were performed in which HF was bubbled through Flibe with varying concentrations of dissolved Be. The feed gas consisted of 910-1800 ppm HF and 0.1-0.2 vol.% H2, with the balance comprised of He. A cylindrical rod of Be was contacted with the salt for periods of time ranging from 600 to 3600 s, resulting in mole fractions in the salt ranging from 4.3 × 10-5 to 2.6 × 10-4. Initially, high HF conversion levels in excess of 90% were observed. As HF reacted with the Be, the conversion levels slowly dropped over a period of several hours to a few days. A simple kinetic model, which is first order in both HF and Be concentration has been coupled with a non-mixed reactor model to yield a good fit to the data. Application of this model indicates that Be should be suitable for keeping the TF concentration in the salt below 0.02 ppb.",

author = "Simpson, {Michael F.} and Smolik, {Galen R.} and Sharpe, {John P.} and Anderl, {Robert A.} and Petti, {David A.} and Yuji Hatano and Masanori Hara and Yasuhisa Oya and Satoshi Fukada and Satoru Tanaka and Takayuki Terai and Sze, {Dai Kai}",

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T1 - Quantitative measurement of beryllium-controlled redox of hydrogen fluoride in molten Flibe

AU - Simpson, Michael F.

AU - Smolik, Galen R.

AU - Sharpe, John P.

AU - Anderl, Robert A.

AU - Petti, David A.

AU - Hatano, Yuji

AU - Hara, Masanori

AU - Oya, Yasuhisa

AU - Fukada, Satoshi

AU - Tanaka, Satoru

AU - Terai, Takayuki

AU - Sze, Dai Kai

PY - 2006/2/1

Y1 - 2006/2/1

N2 - In order to investigate the viability of using Be as a redox agent in a molten Flibe (2LiF-BeF2) blanket, a series of kinetics experiments were performed in which HF was bubbled through Flibe with varying concentrations of dissolved Be. The feed gas consisted of 910-1800 ppm HF and 0.1-0.2 vol.% H2, with the balance comprised of He. A cylindrical rod of Be was contacted with the salt for periods of time ranging from 600 to 3600 s, resulting in mole fractions in the salt ranging from 4.3 × 10-5 to 2.6 × 10-4. Initially, high HF conversion levels in excess of 90% were observed. As HF reacted with the Be, the conversion levels slowly dropped over a period of several hours to a few days. A simple kinetic model, which is first order in both HF and Be concentration has been coupled with a non-mixed reactor model to yield a good fit to the data. Application of this model indicates that Be should be suitable for keeping the TF concentration in the salt below 0.02 ppb.

AB - In order to investigate the viability of using Be as a redox agent in a molten Flibe (2LiF-BeF2) blanket, a series of kinetics experiments were performed in which HF was bubbled through Flibe with varying concentrations of dissolved Be. The feed gas consisted of 910-1800 ppm HF and 0.1-0.2 vol.% H2, with the balance comprised of He. A cylindrical rod of Be was contacted with the salt for periods of time ranging from 600 to 3600 s, resulting in mole fractions in the salt ranging from 4.3 × 10-5 to 2.6 × 10-4. Initially, high HF conversion levels in excess of 90% were observed. As HF reacted with the Be, the conversion levels slowly dropped over a period of several hours to a few days. A simple kinetic model, which is first order in both HF and Be concentration has been coupled with a non-mixed reactor model to yield a good fit to the data. Application of this model indicates that Be should be suitable for keeping the TF concentration in the salt below 0.02 ppb.

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ER -

Quantitative measurement of beryllium-controlled redox of hydrogen fluoride in molten Flibe

Abstract

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