Divalent ion removal from monoethylene glycol-water streams
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United States of America Patent
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Jun 16, 2020
Grant Date -
Oct 8, 2015
app pub date -
Apr 7, 2014
filing date -
Apr 7, 2014
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Abstract
A system and process for the removal of divalent ions from a MEG-water stream are presented. The system includes a chemical treatment tank that receives the MEG-water stream, means for precipitating the calcium, magnesium, and hydroxide ions that are contained in the MEG-water stream, means for discharging the MEG-water stream from the chemical treatment tank, and means for recycling the discharged MEG-water stream back to the chemical treatment tank or routing it to a solids removal system. The means for precipitating the calcium, magnesium, and sulfate ions may be employed simultaneously or sequentially.
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