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Issue 4, 2015
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Selective, high-temperature permeation of nitrogen oxides using a supported molten salt membrane

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Abstract

Molten nitrate/ceramic membranes of KNO3/Al2O3 and KNO3/La0.6Sr0.4Co0.2Fe0.8O3−δ (LSCF) were designed and successfully operated for the selective permeation of nitrogen oxides. With the presence of oxygen on the feed side of the membrane, the KNO3/Al2O3 membrane showed no measurable oxygen permeation while the KNO3/LSCF membrane exhibited nitrogen dioxide and oxygen co-permeation. For the KNO3/LSCF membrane, a permeance of up to 6.9 × 10−8 mol m−2 s−1 Pa−1 was achieved while the nitrogen dioxide to oxygen permeate ratio appeared to be approximately constant with a value of around unity.

Graphical abstract: Selective, high-temperature permeation of nitrogen oxides using a supported molten salt membrane

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Publication details

The article was received on 18 Jul 2014, accepted on 26 Jan 2015 and first published on 26 Jan 2015


Article type: Communication
DOI: 10.1039/C4EE02256D
Citation: Energy Environ. Sci., 2015,8, 1220-1223
  • Open access: Creative Commons BY license
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    Selective, high-temperature permeation of nitrogen oxides using a supported molten salt membrane

    G. Zhang, E. I. Papaioannou and I. S. Metcalfe, Energy Environ. Sci., 2015, 8, 1220
    DOI: 10.1039/C4EE02256D

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