Carbonaceous adsorbent membranes for gas dehydration
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United States of America Patent
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Dec 21, 1999
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N/A
app pub date -
Oct 10, 1997
filing date -
Oct 10, 1997
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Abstract
A carbonaceous adsorbent membrane is prepared by contacting a hydrophobic carbonaceous adsorbent membrane with an aqueous solution of one or more oxidizing acids and one or more metals selected from the group consisting of copper (+2), chromium (+3), and nickel (+2). The treated membrane is rinsed and dried to yield a hydrophilic carbonaceous adsorbent membrane which is useful for removing water from water-containing gas mixtures.
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