Fuel cell aluminum production
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United States of America Patent
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Sep 12, 2000
Grant Date -
N/A
app pub date -
Aug 18, 1998
filing date -
Aug 18, 1998
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Expired
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Abstract
A process and apparatus are disclosed for electrolytically smelting alumina to produce aluminum metal, including providing a combination solid oxide fuel cell and electrolytic smelting cell for the production of aluminum from refined alumina positioned near tile solid oxide fuel cell. In one aspect, an alumina ore refinery for producing the refined alumina is positioned near the solid oxide fuel cell, and refined alumina is passed at a temperature of at least 900.degree. C. directly from the alumina ore refinery to the electrolytic smelting cell. In one aspect, the solid oxide fuel cell incorporates a planar construction having a solid state cathode material of lanthanum strontium manganate, a solid electrolyte of yttria stabilized zirconia, and a nickel/yttria stabilized zirconia cermet anode.
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