Process for removing acid gases using a basic salt activated with a non-sterically hindered diamine
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United States of America Patent
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Mar 8, 1983
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N/A
app pub date -
Nov 13, 1981
filing date -
Nov 13, 1981
priority date (Note) -
Expired
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Abstract
Acidic gases containing carbon dioxide are removed from a normally gaseous mixture by absorbing CO.sub.2 from the gaseous mixture with an aqueous solution comprising a basic alkali metal salt or hydroxide and an activator or promoter system for the salt or hydroxide which contains (i) at least one non-sterically hindered diamine defined as having both a primary and a tertiary amino moiety wherein the primary amino moiety is attached to a primary carbon atom, and (ii) an amino acid, and desorbing at least partially the absorbed CO.sub.2 from the aqueous solution.
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