System and method for removal of heavy metal ions from a rich hydrate inhibitor stream
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United States of America Patent
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Jun 28, 2016
Grant Date -
Apr 23, 2015
app pub date -
May 29, 2013
filing date -
May 30, 2012
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Abstract
Method and system for removal of heavy metal ions from a rich hydrate inhibitor stream, wherein the method comprises a) adding a selective heavy metal reactant to the rich hydrate inhibitor stream, forming a fluid stream comprising heavy metal salt particles, b) separating the obtained fluid stream in three streams a hydrocarbon stream, a recovered rich hydrate inhibitor stream, and a slurry comprising the heavy metal salt particles, c) separating remaining hydrate inhibitor from the slurry thereby obtaining a concentrated rest comprising the heavy metal salt particles.
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