Mixed desorption of He, H2, and CH4 adsorbed on charcoal maximally cooled at 10K

Satoshi Fukada, Masashi Terashita

Research output: Contribution to journalArticle

Abstract

Desorption rates of mixtures of He, H2, and CH4 adsorbed on activated carbon placed in an enclosed vessel are determined under the condition where the temperature is elevated from 10K to room temperature. Activated carbon is selected because of its good adsorption performance at the cryogenic temperature. The carbon used in the present study is covered with mesopores or micropores from 1 to 10 nm in diameter. The adsorption and desorption of their respective gases proceed independently, and the desorption behavior of each component is well expressed in terms of a Langmuir-Freundlich isotherm. Since desorption curves under different heating conditions can be correlated to the same one on a (T-pt) plot, it is considered that gas desorption proceeds under equilibrium condition between the adsorbent and gaseous phases. Two- or three-component desorption of He, H2, and CH4 from activated carbon can be described using an extended multicomponent Langmuir-Freundlich isotherm without any correction. Desorption curves calculated for their respective gases are in comparatively good agreement with experimental data.

Original languageEnglish
Pages (from-to)1219-1226
Number of pages8
Journaljournal of nuclear science and technology
Volume47
Issue number12
DOIs
Publication statusPublished - Dec 1 2010

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charcoal
Charcoal
Desorption
desorption
activated carbon
Activated carbon
Isotherms
isotherms
Gases
gases
Adsorption
adsorption
curves
cryogenic temperature
adsorbents
Cryogenics
Temperature
Adsorbents
vessels
plots

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering

Cite this

Mixed desorption of He, H2, and CH4 adsorbed on charcoal maximally cooled at 10K. / Fukada, Satoshi; Terashita, Masashi.

In: journal of nuclear science and technology, Vol. 47, No. 12, 01.12.2010, p. 1219-1226.

Research output: Contribution to journalArticle

Fukada, Satoshi ; Terashita, Masashi. / Mixed desorption of He, H2, and CH4 adsorbed on charcoal maximally cooled at 10K. In: journal of nuclear science and technology. 2010 ; Vol. 47, No. 12. pp. 1219-1226.
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