The pore structure of the argonne coals as interpreted from contrast matching small angle neutron scattering

P.J. Hall, S.D. Brown, J.M. Calo

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Contrast matching small angle neutron scattering has been performed on a series of Argonne coals using H2O/D2O mixtures using short contact times between the coal and liquid. Calculations of the neutron scattering densities of the coals based on their 'formulae' and helium densities are discussed. The results of the CM-SANS are given and it is shown that the scattering from the scattering from the non-contrast-matched samples is unreliable. It is shown that porosity in coals is effectively determined by the presence of water and that porosity levels decrease with increasing rank.
LanguageEnglish
Pages1327-1332
Number of pages5
JournalFuel
Volume79
Issue number11
DOIs
Publication statusPublished - 1 Sep 2000

Fingerprint

Coal
Pore structure
Neutron scattering
Porosity
Scattering
Helium
Contacts (fluid mechanics)
Water
Liquids

Keywords

  • argonne coals
  • contrast matching small angle neutron scattering
  • porosity

Cite this

Hall, P.J. ; Brown, S.D. ; Calo, J.M. / The pore structure of the argonne coals as interpreted from contrast matching small angle neutron scattering. In: Fuel. 2000 ; Vol. 79, No. 11. pp. 1327-1332.
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The pore structure of the argonne coals as interpreted from contrast matching small angle neutron scattering. / Hall, P.J.; Brown, S.D.; Calo, J.M.

In: Fuel, Vol. 79, No. 11, 01.09.2000, p. 1327-1332.

Research output: Contribution to journalArticle

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AU - Calo, J.M.

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N2 - Contrast matching small angle neutron scattering has been performed on a series of Argonne coals using H2O/D2O mixtures using short contact times between the coal and liquid. Calculations of the neutron scattering densities of the coals based on their 'formulae' and helium densities are discussed. The results of the CM-SANS are given and it is shown that the scattering from the scattering from the non-contrast-matched samples is unreliable. It is shown that porosity in coals is effectively determined by the presence of water and that porosity levels decrease with increasing rank.

AB - Contrast matching small angle neutron scattering has been performed on a series of Argonne coals using H2O/D2O mixtures using short contact times between the coal and liquid. Calculations of the neutron scattering densities of the coals based on their 'formulae' and helium densities are discussed. The results of the CM-SANS are given and it is shown that the scattering from the scattering from the non-contrast-matched samples is unreliable. It is shown that porosity in coals is effectively determined by the presence of water and that porosity levels decrease with increasing rank.

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